aboutsummaryrefslogtreecommitdiffstats
path: root/fs/nfs/nfs4xdr.c
diff options
context:
space:
mode:
authorTrond Myklebust <Trond.Myklebust@netapp.com>2009-08-19 18:21:52 -0400
committerTrond Myklebust <Trond.Myklebust@netapp.com>2009-08-19 18:21:52 -0400
commit6a396f67d2442e30150ffb5e1142dbb2f2181d3f (patch)
tree2ea4f3ab1d3766204a55ec26600b848ed3a7e8aa /fs/nfs/nfs4xdr.c
parentf884dcaead5f17bf586ac5fe6a3ad07b5203616a (diff)
parentcccddf4f5580131c9b963900e1d3400655e633cc (diff)
Merge branch 'nfsv4_xdr_cleanups-for-2.6.32' into nfs-for-2.6.32
Conflicts: fs/nfs/nfs4xdr.c
Diffstat (limited to 'fs/nfs/nfs4xdr.c')
-rw-r--r--fs/nfs/nfs4xdr.c1374
1 files changed, 810 insertions, 564 deletions
diff --git a/fs/nfs/nfs4xdr.c b/fs/nfs/nfs4xdr.c
index e65cc2e650c8..cfc30d362f94 100644
--- a/fs/nfs/nfs4xdr.c
+++ b/fs/nfs/nfs4xdr.c
@@ -702,29 +702,12 @@ struct compound_hdr {
702 u32 minorversion; 702 u32 minorversion;
703}; 703};
704 704
705/* 705static __be32 *reserve_space(struct xdr_stream *xdr, size_t nbytes)
706 * START OF "GENERIC" ENCODE ROUTINES. 706{
707 * These may look a little ugly since they are imported from a "generic" 707 __be32 *p = xdr_reserve_space(xdr, nbytes);
708 * set of XDR encode/decode routines which are intended to be shared by 708 BUG_ON(!p);
709 * all of our NFSv4 implementations (OpenBSD, MacOS X...). 709 return p;
710 * 710}
711 * If the pain of reading these is too great, it should be a straightforward
712 * task to translate them into Linux-specific versions which are more
713 * consistent with the style used in NFSv2/v3...
714 */
715#define WRITE32(n) *p++ = htonl(n)
716#define WRITE64(n) do { \
717 *p++ = htonl((uint32_t)((n) >> 32)); \
718 *p++ = htonl((uint32_t)(n)); \
719} while (0)
720#define WRITEMEM(ptr,nbytes) do { \
721 p = xdr_encode_opaque_fixed(p, ptr, nbytes); \
722} while (0)
723
724#define RESERVE_SPACE(nbytes) do { \
725 p = xdr_reserve_space(xdr, nbytes); \
726 BUG_ON(!p); \
727} while (0)
728 711
729static void encode_string(struct xdr_stream *xdr, unsigned int len, const char *str) 712static void encode_string(struct xdr_stream *xdr, unsigned int len, const char *str)
730{ 713{
@@ -749,12 +732,11 @@ static void encode_compound_hdr(struct xdr_stream *xdr,
749 732
750 dprintk("encode_compound: tag=%.*s\n", (int)hdr->taglen, hdr->tag); 733 dprintk("encode_compound: tag=%.*s\n", (int)hdr->taglen, hdr->tag);
751 BUG_ON(hdr->taglen > NFS4_MAXTAGLEN); 734 BUG_ON(hdr->taglen > NFS4_MAXTAGLEN);
752 RESERVE_SPACE(12+(XDR_QUADLEN(hdr->taglen)<<2)); 735 p = reserve_space(xdr, 4 + hdr->taglen + 8);
753 WRITE32(hdr->taglen); 736 p = xdr_encode_opaque(p, hdr->tag, hdr->taglen);
754 WRITEMEM(hdr->tag, hdr->taglen); 737 *p++ = cpu_to_be32(hdr->minorversion);
755 WRITE32(hdr->minorversion);
756 hdr->nops_p = p; 738 hdr->nops_p = p;
757 WRITE32(hdr->nops); 739 *p = cpu_to_be32(hdr->nops);
758} 740}
759 741
760static void encode_nops(struct compound_hdr *hdr) 742static void encode_nops(struct compound_hdr *hdr)
@@ -829,55 +811,53 @@ static void encode_attrs(struct xdr_stream *xdr, const struct iattr *iap, const
829 len += 16; 811 len += 16;
830 else if (iap->ia_valid & ATTR_MTIME) 812 else if (iap->ia_valid & ATTR_MTIME)
831 len += 4; 813 len += 4;
832 RESERVE_SPACE(len); 814 p = reserve_space(xdr, len);
833 815
834 /* 816 /*
835 * We write the bitmap length now, but leave the bitmap and the attribute 817 * We write the bitmap length now, but leave the bitmap and the attribute
836 * buffer length to be backfilled at the end of this routine. 818 * buffer length to be backfilled at the end of this routine.
837 */ 819 */
838 WRITE32(2); 820 *p++ = cpu_to_be32(2);
839 q = p; 821 q = p;
840 p += 3; 822 p += 3;
841 823
842 if (iap->ia_valid & ATTR_SIZE) { 824 if (iap->ia_valid & ATTR_SIZE) {
843 bmval0 |= FATTR4_WORD0_SIZE; 825 bmval0 |= FATTR4_WORD0_SIZE;
844 WRITE64(iap->ia_size); 826 p = xdr_encode_hyper(p, iap->ia_size);
845 } 827 }
846 if (iap->ia_valid & ATTR_MODE) { 828 if (iap->ia_valid & ATTR_MODE) {
847 bmval1 |= FATTR4_WORD1_MODE; 829 bmval1 |= FATTR4_WORD1_MODE;
848 WRITE32(iap->ia_mode & S_IALLUGO); 830 *p++ = cpu_to_be32(iap->ia_mode & S_IALLUGO);
849 } 831 }
850 if (iap->ia_valid & ATTR_UID) { 832 if (iap->ia_valid & ATTR_UID) {
851 bmval1 |= FATTR4_WORD1_OWNER; 833 bmval1 |= FATTR4_WORD1_OWNER;
852 WRITE32(owner_namelen); 834 p = xdr_encode_opaque(p, owner_name, owner_namelen);
853 WRITEMEM(owner_name, owner_namelen);
854 } 835 }
855 if (iap->ia_valid & ATTR_GID) { 836 if (iap->ia_valid & ATTR_GID) {
856 bmval1 |= FATTR4_WORD1_OWNER_GROUP; 837 bmval1 |= FATTR4_WORD1_OWNER_GROUP;
857 WRITE32(owner_grouplen); 838 p = xdr_encode_opaque(p, owner_group, owner_grouplen);
858 WRITEMEM(owner_group, owner_grouplen);
859 } 839 }
860 if (iap->ia_valid & ATTR_ATIME_SET) { 840 if (iap->ia_valid & ATTR_ATIME_SET) {
861 bmval1 |= FATTR4_WORD1_TIME_ACCESS_SET; 841 bmval1 |= FATTR4_WORD1_TIME_ACCESS_SET;
862 WRITE32(NFS4_SET_TO_CLIENT_TIME); 842 *p++ = cpu_to_be32(NFS4_SET_TO_CLIENT_TIME);
863 WRITE32(0); 843 *p++ = cpu_to_be32(0);
864 WRITE32(iap->ia_mtime.tv_sec); 844 *p++ = cpu_to_be32(iap->ia_mtime.tv_sec);
865 WRITE32(iap->ia_mtime.tv_nsec); 845 *p++ = cpu_to_be32(iap->ia_mtime.tv_nsec);
866 } 846 }
867 else if (iap->ia_valid & ATTR_ATIME) { 847 else if (iap->ia_valid & ATTR_ATIME) {
868 bmval1 |= FATTR4_WORD1_TIME_ACCESS_SET; 848 bmval1 |= FATTR4_WORD1_TIME_ACCESS_SET;
869 WRITE32(NFS4_SET_TO_SERVER_TIME); 849 *p++ = cpu_to_be32(NFS4_SET_TO_SERVER_TIME);
870 } 850 }
871 if (iap->ia_valid & ATTR_MTIME_SET) { 851 if (iap->ia_valid & ATTR_MTIME_SET) {
872 bmval1 |= FATTR4_WORD1_TIME_MODIFY_SET; 852 bmval1 |= FATTR4_WORD1_TIME_MODIFY_SET;
873 WRITE32(NFS4_SET_TO_CLIENT_TIME); 853 *p++ = cpu_to_be32(NFS4_SET_TO_CLIENT_TIME);
874 WRITE32(0); 854 *p++ = cpu_to_be32(0);
875 WRITE32(iap->ia_mtime.tv_sec); 855 *p++ = cpu_to_be32(iap->ia_mtime.tv_sec);
876 WRITE32(iap->ia_mtime.tv_nsec); 856 *p++ = cpu_to_be32(iap->ia_mtime.tv_nsec);
877 } 857 }
878 else if (iap->ia_valid & ATTR_MTIME) { 858 else if (iap->ia_valid & ATTR_MTIME) {
879 bmval1 |= FATTR4_WORD1_TIME_MODIFY_SET; 859 bmval1 |= FATTR4_WORD1_TIME_MODIFY_SET;
880 WRITE32(NFS4_SET_TO_SERVER_TIME); 860 *p++ = cpu_to_be32(NFS4_SET_TO_SERVER_TIME);
881 } 861 }
882 862
883 /* 863 /*
@@ -891,7 +871,7 @@ static void encode_attrs(struct xdr_stream *xdr, const struct iattr *iap, const
891 len = (char *)p - (char *)q - 12; 871 len = (char *)p - (char *)q - 12;
892 *q++ = htonl(bmval0); 872 *q++ = htonl(bmval0);
893 *q++ = htonl(bmval1); 873 *q++ = htonl(bmval1);
894 *q++ = htonl(len); 874 *q = htonl(len);
895 875
896/* out: */ 876/* out: */
897} 877}
@@ -900,9 +880,9 @@ static void encode_access(struct xdr_stream *xdr, u32 access, struct compound_hd
900{ 880{
901 __be32 *p; 881 __be32 *p;
902 882
903 RESERVE_SPACE(8); 883 p = reserve_space(xdr, 8);
904 WRITE32(OP_ACCESS); 884 *p++ = cpu_to_be32(OP_ACCESS);
905 WRITE32(access); 885 *p = cpu_to_be32(access);
906 hdr->nops++; 886 hdr->nops++;
907 hdr->replen += decode_access_maxsz; 887 hdr->replen += decode_access_maxsz;
908} 888}
@@ -911,10 +891,10 @@ static void encode_close(struct xdr_stream *xdr, const struct nfs_closeargs *arg
911{ 891{
912 __be32 *p; 892 __be32 *p;
913 893
914 RESERVE_SPACE(8+NFS4_STATEID_SIZE); 894 p = reserve_space(xdr, 8+NFS4_STATEID_SIZE);
915 WRITE32(OP_CLOSE); 895 *p++ = cpu_to_be32(OP_CLOSE);
916 WRITE32(arg->seqid->sequence->counter); 896 *p++ = cpu_to_be32(arg->seqid->sequence->counter);
917 WRITEMEM(arg->stateid->data, NFS4_STATEID_SIZE); 897 xdr_encode_opaque_fixed(p, arg->stateid->data, NFS4_STATEID_SIZE);
918 hdr->nops++; 898 hdr->nops++;
919 hdr->replen += decode_close_maxsz; 899 hdr->replen += decode_close_maxsz;
920} 900}
@@ -923,10 +903,10 @@ static void encode_commit(struct xdr_stream *xdr, const struct nfs_writeargs *ar
923{ 903{
924 __be32 *p; 904 __be32 *p;
925 905
926 RESERVE_SPACE(16); 906 p = reserve_space(xdr, 16);
927 WRITE32(OP_COMMIT); 907 *p++ = cpu_to_be32(OP_COMMIT);
928 WRITE64(args->offset); 908 p = xdr_encode_hyper(p, args->offset);
929 WRITE32(args->count); 909 *p = cpu_to_be32(args->count);
930 hdr->nops++; 910 hdr->nops++;
931 hdr->replen += decode_commit_maxsz; 911 hdr->replen += decode_commit_maxsz;
932} 912}
@@ -935,30 +915,28 @@ static void encode_create(struct xdr_stream *xdr, const struct nfs4_create_arg *
935{ 915{
936 __be32 *p; 916 __be32 *p;
937 917
938 RESERVE_SPACE(8); 918 p = reserve_space(xdr, 8);
939 WRITE32(OP_CREATE); 919 *p++ = cpu_to_be32(OP_CREATE);
940 WRITE32(create->ftype); 920 *p = cpu_to_be32(create->ftype);
941 921
942 switch (create->ftype) { 922 switch (create->ftype) {
943 case NF4LNK: 923 case NF4LNK:
944 RESERVE_SPACE(4); 924 p = reserve_space(xdr, 4);
945 WRITE32(create->u.symlink.len); 925 *p = cpu_to_be32(create->u.symlink.len);
946 xdr_write_pages(xdr, create->u.symlink.pages, 0, create->u.symlink.len); 926 xdr_write_pages(xdr, create->u.symlink.pages, 0, create->u.symlink.len);
947 break; 927 break;
948 928
949 case NF4BLK: case NF4CHR: 929 case NF4BLK: case NF4CHR:
950 RESERVE_SPACE(8); 930 p = reserve_space(xdr, 8);
951 WRITE32(create->u.device.specdata1); 931 *p++ = cpu_to_be32(create->u.device.specdata1);
952 WRITE32(create->u.device.specdata2); 932 *p = cpu_to_be32(create->u.device.specdata2);
953 break; 933 break;
954 934
955 default: 935 default:
956 break; 936 break;
957 } 937 }
958 938
959 RESERVE_SPACE(4 + create->name->len); 939 encode_string(xdr, create->name->len, create->name->name);
960 WRITE32(create->name->len);
961 WRITEMEM(create->name->name, create->name->len);
962 hdr->nops++; 940 hdr->nops++;
963 hdr->replen += decode_create_maxsz; 941 hdr->replen += decode_create_maxsz;
964 942
@@ -969,10 +947,10 @@ static void encode_getattr_one(struct xdr_stream *xdr, uint32_t bitmap, struct c
969{ 947{
970 __be32 *p; 948 __be32 *p;
971 949
972 RESERVE_SPACE(12); 950 p = reserve_space(xdr, 12);
973 WRITE32(OP_GETATTR); 951 *p++ = cpu_to_be32(OP_GETATTR);
974 WRITE32(1); 952 *p++ = cpu_to_be32(1);
975 WRITE32(bitmap); 953 *p = cpu_to_be32(bitmap);
976 hdr->nops++; 954 hdr->nops++;
977 hdr->replen += decode_getattr_maxsz; 955 hdr->replen += decode_getattr_maxsz;
978} 956}
@@ -981,11 +959,11 @@ static void encode_getattr_two(struct xdr_stream *xdr, uint32_t bm0, uint32_t bm
981{ 959{
982 __be32 *p; 960 __be32 *p;
983 961
984 RESERVE_SPACE(16); 962 p = reserve_space(xdr, 16);
985 WRITE32(OP_GETATTR); 963 *p++ = cpu_to_be32(OP_GETATTR);
986 WRITE32(2); 964 *p++ = cpu_to_be32(2);
987 WRITE32(bm0); 965 *p++ = cpu_to_be32(bm0);
988 WRITE32(bm1); 966 *p = cpu_to_be32(bm1);
989 hdr->nops++; 967 hdr->nops++;
990 hdr->replen += decode_getattr_maxsz; 968 hdr->replen += decode_getattr_maxsz;
991} 969}
@@ -1012,8 +990,8 @@ static void encode_getfh(struct xdr_stream *xdr, struct compound_hdr *hdr)
1012{ 990{
1013 __be32 *p; 991 __be32 *p;
1014 992
1015 RESERVE_SPACE(4); 993 p = reserve_space(xdr, 4);
1016 WRITE32(OP_GETFH); 994 *p = cpu_to_be32(OP_GETFH);
1017 hdr->nops++; 995 hdr->nops++;
1018 hdr->replen += decode_getfh_maxsz; 996 hdr->replen += decode_getfh_maxsz;
1019} 997}
@@ -1022,10 +1000,9 @@ static void encode_link(struct xdr_stream *xdr, const struct qstr *name, struct
1022{ 1000{
1023 __be32 *p; 1001 __be32 *p;
1024 1002
1025 RESERVE_SPACE(8 + name->len); 1003 p = reserve_space(xdr, 8 + name->len);
1026 WRITE32(OP_LINK); 1004 *p++ = cpu_to_be32(OP_LINK);
1027 WRITE32(name->len); 1005 xdr_encode_opaque(p, name->name, name->len);
1028 WRITEMEM(name->name, name->len);
1029 hdr->nops++; 1006 hdr->nops++;
1030 hdr->replen += decode_link_maxsz; 1007 hdr->replen += decode_link_maxsz;
1031} 1008}
@@ -1052,27 +1029,27 @@ static void encode_lock(struct xdr_stream *xdr, const struct nfs_lock_args *args
1052{ 1029{
1053 __be32 *p; 1030 __be32 *p;
1054 1031
1055 RESERVE_SPACE(32); 1032 p = reserve_space(xdr, 32);
1056 WRITE32(OP_LOCK); 1033 *p++ = cpu_to_be32(OP_LOCK);
1057 WRITE32(nfs4_lock_type(args->fl, args->block)); 1034 *p++ = cpu_to_be32(nfs4_lock_type(args->fl, args->block));
1058 WRITE32(args->reclaim); 1035 *p++ = cpu_to_be32(args->reclaim);
1059 WRITE64(args->fl->fl_start); 1036 p = xdr_encode_hyper(p, args->fl->fl_start);
1060 WRITE64(nfs4_lock_length(args->fl)); 1037 p = xdr_encode_hyper(p, nfs4_lock_length(args->fl));
1061 WRITE32(args->new_lock_owner); 1038 *p = cpu_to_be32(args->new_lock_owner);
1062 if (args->new_lock_owner){ 1039 if (args->new_lock_owner){
1063 RESERVE_SPACE(4+NFS4_STATEID_SIZE+32); 1040 p = reserve_space(xdr, 4+NFS4_STATEID_SIZE+32);
1064 WRITE32(args->open_seqid->sequence->counter); 1041 *p++ = cpu_to_be32(args->open_seqid->sequence->counter);
1065 WRITEMEM(args->open_stateid->data, NFS4_STATEID_SIZE); 1042 p = xdr_encode_opaque_fixed(p, args->open_stateid->data, NFS4_STATEID_SIZE);
1066 WRITE32(args->lock_seqid->sequence->counter); 1043 *p++ = cpu_to_be32(args->lock_seqid->sequence->counter);
1067 WRITE64(args->lock_owner.clientid); 1044 p = xdr_encode_hyper(p, args->lock_owner.clientid);
1068 WRITE32(16); 1045 *p++ = cpu_to_be32(16);
1069 WRITEMEM("lock id:", 8); 1046 p = xdr_encode_opaque_fixed(p, "lock id:", 8);
1070 WRITE64(args->lock_owner.id); 1047 xdr_encode_hyper(p, args->lock_owner.id);
1071 } 1048 }
1072 else { 1049 else {
1073 RESERVE_SPACE(NFS4_STATEID_SIZE+4); 1050 p = reserve_space(xdr, NFS4_STATEID_SIZE+4);
1074 WRITEMEM(args->lock_stateid->data, NFS4_STATEID_SIZE); 1051 p = xdr_encode_opaque_fixed(p, args->lock_stateid->data, NFS4_STATEID_SIZE);
1075 WRITE32(args->lock_seqid->sequence->counter); 1052 *p = cpu_to_be32(args->lock_seqid->sequence->counter);
1076 } 1053 }
1077 hdr->nops++; 1054 hdr->nops++;
1078 hdr->replen += decode_lock_maxsz; 1055 hdr->replen += decode_lock_maxsz;
@@ -1082,15 +1059,15 @@ static void encode_lockt(struct xdr_stream *xdr, const struct nfs_lockt_args *ar
1082{ 1059{
1083 __be32 *p; 1060 __be32 *p;
1084 1061
1085 RESERVE_SPACE(52); 1062 p = reserve_space(xdr, 52);
1086 WRITE32(OP_LOCKT); 1063 *p++ = cpu_to_be32(OP_LOCKT);
1087 WRITE32(nfs4_lock_type(args->fl, 0)); 1064 *p++ = cpu_to_be32(nfs4_lock_type(args->fl, 0));
1088 WRITE64(args->fl->fl_start); 1065 p = xdr_encode_hyper(p, args->fl->fl_start);
1089 WRITE64(nfs4_lock_length(args->fl)); 1066 p = xdr_encode_hyper(p, nfs4_lock_length(args->fl));
1090 WRITE64(args->lock_owner.clientid); 1067 p = xdr_encode_hyper(p, args->lock_owner.clientid);
1091 WRITE32(16); 1068 *p++ = cpu_to_be32(16);
1092 WRITEMEM("lock id:", 8); 1069 p = xdr_encode_opaque_fixed(p, "lock id:", 8);
1093 WRITE64(args->lock_owner.id); 1070 xdr_encode_hyper(p, args->lock_owner.id);
1094 hdr->nops++; 1071 hdr->nops++;
1095 hdr->replen += decode_lockt_maxsz; 1072 hdr->replen += decode_lockt_maxsz;
1096} 1073}
@@ -1099,13 +1076,13 @@ static void encode_locku(struct xdr_stream *xdr, const struct nfs_locku_args *ar
1099{ 1076{
1100 __be32 *p; 1077 __be32 *p;
1101 1078
1102 RESERVE_SPACE(12+NFS4_STATEID_SIZE+16); 1079 p = reserve_space(xdr, 12+NFS4_STATEID_SIZE+16);
1103 WRITE32(OP_LOCKU); 1080 *p++ = cpu_to_be32(OP_LOCKU);
1104 WRITE32(nfs4_lock_type(args->fl, 0)); 1081 *p++ = cpu_to_be32(nfs4_lock_type(args->fl, 0));
1105 WRITE32(args->seqid->sequence->counter); 1082 *p++ = cpu_to_be32(args->seqid->sequence->counter);
1106 WRITEMEM(args->stateid->data, NFS4_STATEID_SIZE); 1083 p = xdr_encode_opaque_fixed(p, args->stateid->data, NFS4_STATEID_SIZE);
1107 WRITE64(args->fl->fl_start); 1084 p = xdr_encode_hyper(p, args->fl->fl_start);
1108 WRITE64(nfs4_lock_length(args->fl)); 1085 xdr_encode_hyper(p, nfs4_lock_length(args->fl));
1109 hdr->nops++; 1086 hdr->nops++;
1110 hdr->replen += decode_locku_maxsz; 1087 hdr->replen += decode_locku_maxsz;
1111} 1088}
@@ -1115,10 +1092,9 @@ static void encode_lookup(struct xdr_stream *xdr, const struct qstr *name, struc
1115 int len = name->len; 1092 int len = name->len;
1116 __be32 *p; 1093 __be32 *p;
1117 1094
1118 RESERVE_SPACE(8 + len); 1095 p = reserve_space(xdr, 8 + len);
1119 WRITE32(OP_LOOKUP); 1096 *p++ = cpu_to_be32(OP_LOOKUP);
1120 WRITE32(len); 1097 xdr_encode_opaque(p, name->name, len);
1121 WRITEMEM(name->name, len);
1122 hdr->nops++; 1098 hdr->nops++;
1123 hdr->replen += decode_lookup_maxsz; 1099 hdr->replen += decode_lookup_maxsz;
1124} 1100}
@@ -1127,21 +1103,21 @@ static void encode_share_access(struct xdr_stream *xdr, fmode_t fmode)
1127{ 1103{
1128 __be32 *p; 1104 __be32 *p;
1129 1105
1130 RESERVE_SPACE(8); 1106 p = reserve_space(xdr, 8);
1131 switch (fmode & (FMODE_READ|FMODE_WRITE)) { 1107 switch (fmode & (FMODE_READ|FMODE_WRITE)) {
1132 case FMODE_READ: 1108 case FMODE_READ:
1133 WRITE32(NFS4_SHARE_ACCESS_READ); 1109 *p++ = cpu_to_be32(NFS4_SHARE_ACCESS_READ);
1134 break; 1110 break;
1135 case FMODE_WRITE: 1111 case FMODE_WRITE:
1136 WRITE32(NFS4_SHARE_ACCESS_WRITE); 1112 *p++ = cpu_to_be32(NFS4_SHARE_ACCESS_WRITE);
1137 break; 1113 break;
1138 case FMODE_READ|FMODE_WRITE: 1114 case FMODE_READ|FMODE_WRITE:
1139 WRITE32(NFS4_SHARE_ACCESS_BOTH); 1115 *p++ = cpu_to_be32(NFS4_SHARE_ACCESS_BOTH);
1140 break; 1116 break;
1141 default: 1117 default:
1142 WRITE32(0); 1118 *p++ = cpu_to_be32(0);
1143 } 1119 }
1144 WRITE32(0); /* for linux, share_deny = 0 always */ 1120 *p = cpu_to_be32(0); /* for linux, share_deny = 0 always */
1145} 1121}
1146 1122
1147static inline void encode_openhdr(struct xdr_stream *xdr, const struct nfs_openargs *arg) 1123static inline void encode_openhdr(struct xdr_stream *xdr, const struct nfs_openargs *arg)
@@ -1151,29 +1127,29 @@ static inline void encode_openhdr(struct xdr_stream *xdr, const struct nfs_opena
1151 * opcode 4, seqid 4, share_access 4, share_deny 4, clientid 8, ownerlen 4, 1127 * opcode 4, seqid 4, share_access 4, share_deny 4, clientid 8, ownerlen 4,
1152 * owner 4 = 32 1128 * owner 4 = 32
1153 */ 1129 */
1154 RESERVE_SPACE(8); 1130 p = reserve_space(xdr, 8);
1155 WRITE32(OP_OPEN); 1131 *p++ = cpu_to_be32(OP_OPEN);
1156 WRITE32(arg->seqid->sequence->counter); 1132 *p = cpu_to_be32(arg->seqid->sequence->counter);
1157 encode_share_access(xdr, arg->fmode); 1133 encode_share_access(xdr, arg->fmode);
1158 RESERVE_SPACE(28); 1134 p = reserve_space(xdr, 28);
1159 WRITE64(arg->clientid); 1135 p = xdr_encode_hyper(p, arg->clientid);
1160 WRITE32(16); 1136 *p++ = cpu_to_be32(16);
1161 WRITEMEM("open id:", 8); 1137 p = xdr_encode_opaque_fixed(p, "open id:", 8);
1162 WRITE64(arg->id); 1138 xdr_encode_hyper(p, arg->id);
1163} 1139}
1164 1140
1165static inline void encode_createmode(struct xdr_stream *xdr, const struct nfs_openargs *arg) 1141static inline void encode_createmode(struct xdr_stream *xdr, const struct nfs_openargs *arg)
1166{ 1142{
1167 __be32 *p; 1143 __be32 *p;
1168 1144
1169 RESERVE_SPACE(4); 1145 p = reserve_space(xdr, 4);
1170 switch(arg->open_flags & O_EXCL) { 1146 switch(arg->open_flags & O_EXCL) {
1171 case 0: 1147 case 0:
1172 WRITE32(NFS4_CREATE_UNCHECKED); 1148 *p = cpu_to_be32(NFS4_CREATE_UNCHECKED);
1173 encode_attrs(xdr, arg->u.attrs, arg->server); 1149 encode_attrs(xdr, arg->u.attrs, arg->server);
1174 break; 1150 break;
1175 default: 1151 default:
1176 WRITE32(NFS4_CREATE_EXCLUSIVE); 1152 *p = cpu_to_be32(NFS4_CREATE_EXCLUSIVE);
1177 encode_nfs4_verifier(xdr, &arg->u.verifier); 1153 encode_nfs4_verifier(xdr, &arg->u.verifier);
1178 } 1154 }
1179} 1155}
@@ -1182,14 +1158,14 @@ static void encode_opentype(struct xdr_stream *xdr, const struct nfs_openargs *a
1182{ 1158{
1183 __be32 *p; 1159 __be32 *p;
1184 1160
1185 RESERVE_SPACE(4); 1161 p = reserve_space(xdr, 4);
1186 switch (arg->open_flags & O_CREAT) { 1162 switch (arg->open_flags & O_CREAT) {
1187 case 0: 1163 case 0:
1188 WRITE32(NFS4_OPEN_NOCREATE); 1164 *p = cpu_to_be32(NFS4_OPEN_NOCREATE);
1189 break; 1165 break;
1190 default: 1166 default:
1191 BUG_ON(arg->claim != NFS4_OPEN_CLAIM_NULL); 1167 BUG_ON(arg->claim != NFS4_OPEN_CLAIM_NULL);
1192 WRITE32(NFS4_OPEN_CREATE); 1168 *p = cpu_to_be32(NFS4_OPEN_CREATE);
1193 encode_createmode(xdr, arg); 1169 encode_createmode(xdr, arg);
1194 } 1170 }
1195} 1171}
@@ -1198,16 +1174,16 @@ static inline void encode_delegation_type(struct xdr_stream *xdr, fmode_t delega
1198{ 1174{
1199 __be32 *p; 1175 __be32 *p;
1200 1176
1201 RESERVE_SPACE(4); 1177 p = reserve_space(xdr, 4);
1202 switch (delegation_type) { 1178 switch (delegation_type) {
1203 case 0: 1179 case 0:
1204 WRITE32(NFS4_OPEN_DELEGATE_NONE); 1180 *p = cpu_to_be32(NFS4_OPEN_DELEGATE_NONE);
1205 break; 1181 break;
1206 case FMODE_READ: 1182 case FMODE_READ:
1207 WRITE32(NFS4_OPEN_DELEGATE_READ); 1183 *p = cpu_to_be32(NFS4_OPEN_DELEGATE_READ);
1208 break; 1184 break;
1209 case FMODE_WRITE|FMODE_READ: 1185 case FMODE_WRITE|FMODE_READ:
1210 WRITE32(NFS4_OPEN_DELEGATE_WRITE); 1186 *p = cpu_to_be32(NFS4_OPEN_DELEGATE_WRITE);
1211 break; 1187 break;
1212 default: 1188 default:
1213 BUG(); 1189 BUG();
@@ -1218,8 +1194,8 @@ static inline void encode_claim_null(struct xdr_stream *xdr, const struct qstr *
1218{ 1194{
1219 __be32 *p; 1195 __be32 *p;
1220 1196
1221 RESERVE_SPACE(4); 1197 p = reserve_space(xdr, 4);
1222 WRITE32(NFS4_OPEN_CLAIM_NULL); 1198 *p = cpu_to_be32(NFS4_OPEN_CLAIM_NULL);
1223 encode_string(xdr, name->len, name->name); 1199 encode_string(xdr, name->len, name->name);
1224} 1200}
1225 1201
@@ -1227,8 +1203,8 @@ static inline void encode_claim_previous(struct xdr_stream *xdr, fmode_t type)
1227{ 1203{
1228 __be32 *p; 1204 __be32 *p;
1229 1205
1230 RESERVE_SPACE(4); 1206 p = reserve_space(xdr, 4);
1231 WRITE32(NFS4_OPEN_CLAIM_PREVIOUS); 1207 *p = cpu_to_be32(NFS4_OPEN_CLAIM_PREVIOUS);
1232 encode_delegation_type(xdr, type); 1208 encode_delegation_type(xdr, type);
1233} 1209}
1234 1210
@@ -1236,9 +1212,9 @@ static inline void encode_claim_delegate_cur(struct xdr_stream *xdr, const struc
1236{ 1212{
1237 __be32 *p; 1213 __be32 *p;
1238 1214
1239 RESERVE_SPACE(4+NFS4_STATEID_SIZE); 1215 p = reserve_space(xdr, 4+NFS4_STATEID_SIZE);
1240 WRITE32(NFS4_OPEN_CLAIM_DELEGATE_CUR); 1216 *p++ = cpu_to_be32(NFS4_OPEN_CLAIM_DELEGATE_CUR);
1241 WRITEMEM(stateid->data, NFS4_STATEID_SIZE); 1217 xdr_encode_opaque_fixed(p, stateid->data, NFS4_STATEID_SIZE);
1242 encode_string(xdr, name->len, name->name); 1218 encode_string(xdr, name->len, name->name);
1243} 1219}
1244 1220
@@ -1267,10 +1243,10 @@ static void encode_open_confirm(struct xdr_stream *xdr, const struct nfs_open_co
1267{ 1243{
1268 __be32 *p; 1244 __be32 *p;
1269 1245
1270 RESERVE_SPACE(4+NFS4_STATEID_SIZE+4); 1246 p = reserve_space(xdr, 4+NFS4_STATEID_SIZE+4);
1271 WRITE32(OP_OPEN_CONFIRM); 1247 *p++ = cpu_to_be32(OP_OPEN_CONFIRM);
1272 WRITEMEM(arg->stateid->data, NFS4_STATEID_SIZE); 1248 p = xdr_encode_opaque_fixed(p, arg->stateid->data, NFS4_STATEID_SIZE);
1273 WRITE32(arg->seqid->sequence->counter); 1249 *p = cpu_to_be32(arg->seqid->sequence->counter);
1274 hdr->nops++; 1250 hdr->nops++;
1275 hdr->replen += decode_open_confirm_maxsz; 1251 hdr->replen += decode_open_confirm_maxsz;
1276} 1252}
@@ -1279,10 +1255,10 @@ static void encode_open_downgrade(struct xdr_stream *xdr, const struct nfs_close
1279{ 1255{
1280 __be32 *p; 1256 __be32 *p;
1281 1257
1282 RESERVE_SPACE(4+NFS4_STATEID_SIZE+4); 1258 p = reserve_space(xdr, 4+NFS4_STATEID_SIZE+4);
1283 WRITE32(OP_OPEN_DOWNGRADE); 1259 *p++ = cpu_to_be32(OP_OPEN_DOWNGRADE);
1284 WRITEMEM(arg->stateid->data, NFS4_STATEID_SIZE); 1260 p = xdr_encode_opaque_fixed(p, arg->stateid->data, NFS4_STATEID_SIZE);
1285 WRITE32(arg->seqid->sequence->counter); 1261 *p = cpu_to_be32(arg->seqid->sequence->counter);
1286 encode_share_access(xdr, arg->fmode); 1262 encode_share_access(xdr, arg->fmode);
1287 hdr->nops++; 1263 hdr->nops++;
1288 hdr->replen += decode_open_downgrade_maxsz; 1264 hdr->replen += decode_open_downgrade_maxsz;
@@ -1294,10 +1270,9 @@ encode_putfh(struct xdr_stream *xdr, const struct nfs_fh *fh, struct compound_hd
1294 int len = fh->size; 1270 int len = fh->size;
1295 __be32 *p; 1271 __be32 *p;
1296 1272
1297 RESERVE_SPACE(8 + len); 1273 p = reserve_space(xdr, 8 + len);
1298 WRITE32(OP_PUTFH); 1274 *p++ = cpu_to_be32(OP_PUTFH);
1299 WRITE32(len); 1275 xdr_encode_opaque(p, fh->data, len);
1300 WRITEMEM(fh->data, len);
1301 hdr->nops++; 1276 hdr->nops++;
1302 hdr->replen += decode_putfh_maxsz; 1277 hdr->replen += decode_putfh_maxsz;
1303} 1278}
@@ -1306,8 +1281,8 @@ static void encode_putrootfh(struct xdr_stream *xdr, struct compound_hdr *hdr)
1306{ 1281{
1307 __be32 *p; 1282 __be32 *p;
1308 1283
1309 RESERVE_SPACE(4); 1284 p = reserve_space(xdr, 4);
1310 WRITE32(OP_PUTROOTFH); 1285 *p = cpu_to_be32(OP_PUTROOTFH);
1311 hdr->nops++; 1286 hdr->nops++;
1312 hdr->replen += decode_putrootfh_maxsz; 1287 hdr->replen += decode_putrootfh_maxsz;
1313} 1288}
@@ -1317,26 +1292,26 @@ static void encode_stateid(struct xdr_stream *xdr, const struct nfs_open_context
1317 nfs4_stateid stateid; 1292 nfs4_stateid stateid;
1318 __be32 *p; 1293 __be32 *p;
1319 1294
1320 RESERVE_SPACE(NFS4_STATEID_SIZE); 1295 p = reserve_space(xdr, NFS4_STATEID_SIZE);
1321 if (ctx->state != NULL) { 1296 if (ctx->state != NULL) {
1322 nfs4_copy_stateid(&stateid, ctx->state, ctx->lockowner); 1297 nfs4_copy_stateid(&stateid, ctx->state, ctx->lockowner);
1323 WRITEMEM(stateid.data, NFS4_STATEID_SIZE); 1298 xdr_encode_opaque_fixed(p, stateid.data, NFS4_STATEID_SIZE);
1324 } else 1299 } else
1325 WRITEMEM(zero_stateid.data, NFS4_STATEID_SIZE); 1300 xdr_encode_opaque_fixed(p, zero_stateid.data, NFS4_STATEID_SIZE);
1326} 1301}
1327 1302
1328static void encode_read(struct xdr_stream *xdr, const struct nfs_readargs *args, struct compound_hdr *hdr) 1303static void encode_read(struct xdr_stream *xdr, const struct nfs_readargs *args, struct compound_hdr *hdr)
1329{ 1304{
1330 __be32 *p; 1305 __be32 *p;
1331 1306
1332 RESERVE_SPACE(4); 1307 p = reserve_space(xdr, 4);
1333 WRITE32(OP_READ); 1308 *p = cpu_to_be32(OP_READ);
1334 1309
1335 encode_stateid(xdr, args->context); 1310 encode_stateid(xdr, args->context);
1336 1311
1337 RESERVE_SPACE(12); 1312 p = reserve_space(xdr, 12);
1338 WRITE64(args->offset); 1313 p = xdr_encode_hyper(p, args->offset);
1339 WRITE32(args->count); 1314 *p = cpu_to_be32(args->count);
1340 hdr->nops++; 1315 hdr->nops++;
1341 hdr->replen += decode_read_maxsz; 1316 hdr->replen += decode_read_maxsz;
1342} 1317}
@@ -1349,20 +1324,20 @@ static void encode_readdir(struct xdr_stream *xdr, const struct nfs4_readdir_arg
1349 }; 1324 };
1350 __be32 *p; 1325 __be32 *p;
1351 1326
1352 RESERVE_SPACE(12+NFS4_VERIFIER_SIZE+20); 1327 p = reserve_space(xdr, 12+NFS4_VERIFIER_SIZE+20);
1353 WRITE32(OP_READDIR); 1328 *p++ = cpu_to_be32(OP_READDIR);
1354 WRITE64(readdir->cookie); 1329 p = xdr_encode_hyper(p, readdir->cookie);
1355 WRITEMEM(readdir->verifier.data, NFS4_VERIFIER_SIZE); 1330 p = xdr_encode_opaque_fixed(p, readdir->verifier.data, NFS4_VERIFIER_SIZE);
1356 WRITE32(readdir->count >> 1); /* We're not doing readdirplus */ 1331 *p++ = cpu_to_be32(readdir->count >> 1); /* We're not doing readdirplus */
1357 WRITE32(readdir->count); 1332 *p++ = cpu_to_be32(readdir->count);
1358 WRITE32(2); 1333 *p++ = cpu_to_be32(2);
1359 /* Switch to mounted_on_fileid if the server supports it */ 1334 /* Switch to mounted_on_fileid if the server supports it */
1360 if (readdir->bitmask[1] & FATTR4_WORD1_MOUNTED_ON_FILEID) 1335 if (readdir->bitmask[1] & FATTR4_WORD1_MOUNTED_ON_FILEID)
1361 attrs[0] &= ~FATTR4_WORD0_FILEID; 1336 attrs[0] &= ~FATTR4_WORD0_FILEID;
1362 else 1337 else
1363 attrs[1] &= ~FATTR4_WORD1_MOUNTED_ON_FILEID; 1338 attrs[1] &= ~FATTR4_WORD1_MOUNTED_ON_FILEID;
1364 WRITE32(attrs[0] & readdir->bitmask[0]); 1339 *p++ = cpu_to_be32(attrs[0] & readdir->bitmask[0]);
1365 WRITE32(attrs[1] & readdir->bitmask[1]); 1340 *p = cpu_to_be32(attrs[1] & readdir->bitmask[1]);
1366 hdr->nops++; 1341 hdr->nops++;
1367 hdr->replen += decode_readdir_maxsz; 1342 hdr->replen += decode_readdir_maxsz;
1368 dprintk("%s: cookie = %Lu, verifier = %08x:%08x, bitmap = %08x:%08x\n", 1343 dprintk("%s: cookie = %Lu, verifier = %08x:%08x, bitmap = %08x:%08x\n",
@@ -1378,8 +1353,8 @@ static void encode_readlink(struct xdr_stream *xdr, const struct nfs4_readlink *
1378{ 1353{
1379 __be32 *p; 1354 __be32 *p;
1380 1355
1381 RESERVE_SPACE(4); 1356 p = reserve_space(xdr, 4);
1382 WRITE32(OP_READLINK); 1357 *p = cpu_to_be32(OP_READLINK);
1383 hdr->nops++; 1358 hdr->nops++;
1384 hdr->replen += decode_readlink_maxsz; 1359 hdr->replen += decode_readlink_maxsz;
1385} 1360}
@@ -1388,10 +1363,9 @@ static void encode_remove(struct xdr_stream *xdr, const struct qstr *name, struc
1388{ 1363{
1389 __be32 *p; 1364 __be32 *p;
1390 1365
1391 RESERVE_SPACE(8 + name->len); 1366 p = reserve_space(xdr, 8 + name->len);
1392 WRITE32(OP_REMOVE); 1367 *p++ = cpu_to_be32(OP_REMOVE);
1393 WRITE32(name->len); 1368 xdr_encode_opaque(p, name->name, name->len);
1394 WRITEMEM(name->name, name->len);
1395 hdr->nops++; 1369 hdr->nops++;
1396 hdr->replen += decode_remove_maxsz; 1370 hdr->replen += decode_remove_maxsz;
1397} 1371}
@@ -1400,14 +1374,10 @@ static void encode_rename(struct xdr_stream *xdr, const struct qstr *oldname, co
1400{ 1374{
1401 __be32 *p; 1375 __be32 *p;
1402 1376
1403 RESERVE_SPACE(8 + oldname->len); 1377 p = reserve_space(xdr, 4);
1404 WRITE32(OP_RENAME); 1378 *p = cpu_to_be32(OP_RENAME);
1405 WRITE32(oldname->len); 1379 encode_string(xdr, oldname->len, oldname->name);
1406 WRITEMEM(oldname->name, oldname->len); 1380 encode_string(xdr, newname->len, newname->name);
1407
1408 RESERVE_SPACE(4 + newname->len);
1409 WRITE32(newname->len);
1410 WRITEMEM(newname->name, newname->len);
1411 hdr->nops++; 1381 hdr->nops++;
1412 hdr->replen += decode_rename_maxsz; 1382 hdr->replen += decode_rename_maxsz;
1413} 1383}
@@ -1416,9 +1386,9 @@ static void encode_renew(struct xdr_stream *xdr, const struct nfs_client *client
1416{ 1386{
1417 __be32 *p; 1387 __be32 *p;
1418 1388
1419 RESERVE_SPACE(12); 1389 p = reserve_space(xdr, 12);
1420 WRITE32(OP_RENEW); 1390 *p++ = cpu_to_be32(OP_RENEW);
1421 WRITE64(client_stateid->cl_clientid); 1391 xdr_encode_hyper(p, client_stateid->cl_clientid);
1422 hdr->nops++; 1392 hdr->nops++;
1423 hdr->replen += decode_renew_maxsz; 1393 hdr->replen += decode_renew_maxsz;
1424} 1394}
@@ -1428,8 +1398,8 @@ encode_restorefh(struct xdr_stream *xdr, struct compound_hdr *hdr)
1428{ 1398{
1429 __be32 *p; 1399 __be32 *p;
1430 1400
1431 RESERVE_SPACE(4); 1401 p = reserve_space(xdr, 4);
1432 WRITE32(OP_RESTOREFH); 1402 *p = cpu_to_be32(OP_RESTOREFH);
1433 hdr->nops++; 1403 hdr->nops++;
1434 hdr->replen += decode_restorefh_maxsz; 1404 hdr->replen += decode_restorefh_maxsz;
1435} 1405}
@@ -1439,16 +1409,16 @@ encode_setacl(struct xdr_stream *xdr, struct nfs_setaclargs *arg, struct compoun
1439{ 1409{
1440 __be32 *p; 1410 __be32 *p;
1441 1411
1442 RESERVE_SPACE(4+NFS4_STATEID_SIZE); 1412 p = reserve_space(xdr, 4+NFS4_STATEID_SIZE);
1443 WRITE32(OP_SETATTR); 1413 *p++ = cpu_to_be32(OP_SETATTR);
1444 WRITEMEM(zero_stateid.data, NFS4_STATEID_SIZE); 1414 xdr_encode_opaque_fixed(p, zero_stateid.data, NFS4_STATEID_SIZE);
1445 RESERVE_SPACE(2*4); 1415 p = reserve_space(xdr, 2*4);
1446 WRITE32(1); 1416 *p++ = cpu_to_be32(1);
1447 WRITE32(FATTR4_WORD0_ACL); 1417 *p = cpu_to_be32(FATTR4_WORD0_ACL);
1448 if (arg->acl_len % 4) 1418 if (arg->acl_len % 4)
1449 return -EINVAL; 1419 return -EINVAL;
1450 RESERVE_SPACE(4); 1420 p = reserve_space(xdr, 4);
1451 WRITE32(arg->acl_len); 1421 *p = cpu_to_be32(arg->acl_len);
1452 xdr_write_pages(xdr, arg->acl_pages, arg->acl_pgbase, arg->acl_len); 1422 xdr_write_pages(xdr, arg->acl_pages, arg->acl_pgbase, arg->acl_len);
1453 hdr->nops++; 1423 hdr->nops++;
1454 hdr->replen += decode_setacl_maxsz; 1424 hdr->replen += decode_setacl_maxsz;
@@ -1460,8 +1430,8 @@ encode_savefh(struct xdr_stream *xdr, struct compound_hdr *hdr)
1460{ 1430{
1461 __be32 *p; 1431 __be32 *p;
1462 1432
1463 RESERVE_SPACE(4); 1433 p = reserve_space(xdr, 4);
1464 WRITE32(OP_SAVEFH); 1434 *p = cpu_to_be32(OP_SAVEFH);
1465 hdr->nops++; 1435 hdr->nops++;
1466 hdr->replen += decode_savefh_maxsz; 1436 hdr->replen += decode_savefh_maxsz;
1467} 1437}
@@ -1470,9 +1440,9 @@ static void encode_setattr(struct xdr_stream *xdr, const struct nfs_setattrargs
1470{ 1440{
1471 __be32 *p; 1441 __be32 *p;
1472 1442
1473 RESERVE_SPACE(4+NFS4_STATEID_SIZE); 1443 p = reserve_space(xdr, 4+NFS4_STATEID_SIZE);
1474 WRITE32(OP_SETATTR); 1444 *p++ = cpu_to_be32(OP_SETATTR);
1475 WRITEMEM(arg->stateid.data, NFS4_STATEID_SIZE); 1445 xdr_encode_opaque_fixed(p, arg->stateid.data, NFS4_STATEID_SIZE);
1476 hdr->nops++; 1446 hdr->nops++;
1477 hdr->replen += decode_setattr_maxsz; 1447 hdr->replen += decode_setattr_maxsz;
1478 encode_attrs(xdr, arg->iap, server); 1448 encode_attrs(xdr, arg->iap, server);
@@ -1482,17 +1452,17 @@ static void encode_setclientid(struct xdr_stream *xdr, const struct nfs4_setclie
1482{ 1452{
1483 __be32 *p; 1453 __be32 *p;
1484 1454
1485 RESERVE_SPACE(4 + NFS4_VERIFIER_SIZE); 1455 p = reserve_space(xdr, 4 + NFS4_VERIFIER_SIZE);
1486 WRITE32(OP_SETCLIENTID); 1456 *p++ = cpu_to_be32(OP_SETCLIENTID);
1487 WRITEMEM(setclientid->sc_verifier->data, NFS4_VERIFIER_SIZE); 1457 xdr_encode_opaque_fixed(p, setclientid->sc_verifier->data, NFS4_VERIFIER_SIZE);
1488 1458
1489 encode_string(xdr, setclientid->sc_name_len, setclientid->sc_name); 1459 encode_string(xdr, setclientid->sc_name_len, setclientid->sc_name);
1490 RESERVE_SPACE(4); 1460 p = reserve_space(xdr, 4);
1491 WRITE32(setclientid->sc_prog); 1461 *p = cpu_to_be32(setclientid->sc_prog);
1492 encode_string(xdr, setclientid->sc_netid_len, setclientid->sc_netid); 1462 encode_string(xdr, setclientid->sc_netid_len, setclientid->sc_netid);
1493 encode_string(xdr, setclientid->sc_uaddr_len, setclientid->sc_uaddr); 1463 encode_string(xdr, setclientid->sc_uaddr_len, setclientid->sc_uaddr);
1494 RESERVE_SPACE(4); 1464 p = reserve_space(xdr, 4);
1495 WRITE32(setclientid->sc_cb_ident); 1465 *p = cpu_to_be32(setclientid->sc_cb_ident);
1496 hdr->nops++; 1466 hdr->nops++;
1497 hdr->replen += decode_setclientid_maxsz; 1467 hdr->replen += decode_setclientid_maxsz;
1498} 1468}
@@ -1501,10 +1471,10 @@ static void encode_setclientid_confirm(struct xdr_stream *xdr, const struct nfs_
1501{ 1471{
1502 __be32 *p; 1472 __be32 *p;
1503 1473
1504 RESERVE_SPACE(12 + NFS4_VERIFIER_SIZE); 1474 p = reserve_space(xdr, 12 + NFS4_VERIFIER_SIZE);
1505 WRITE32(OP_SETCLIENTID_CONFIRM); 1475 *p++ = cpu_to_be32(OP_SETCLIENTID_CONFIRM);
1506 WRITE64(client_state->cl_clientid); 1476 p = xdr_encode_hyper(p, client_state->cl_clientid);
1507 WRITEMEM(client_state->cl_confirm.data, NFS4_VERIFIER_SIZE); 1477 xdr_encode_opaque_fixed(p, client_state->cl_confirm.data, NFS4_VERIFIER_SIZE);
1508 hdr->nops++; 1478 hdr->nops++;
1509 hdr->replen += decode_setclientid_confirm_maxsz; 1479 hdr->replen += decode_setclientid_confirm_maxsz;
1510} 1480}
@@ -1513,15 +1483,15 @@ static void encode_write(struct xdr_stream *xdr, const struct nfs_writeargs *arg
1513{ 1483{
1514 __be32 *p; 1484 __be32 *p;
1515 1485
1516 RESERVE_SPACE(4); 1486 p = reserve_space(xdr, 4);
1517 WRITE32(OP_WRITE); 1487 *p = cpu_to_be32(OP_WRITE);
1518 1488
1519 encode_stateid(xdr, args->context); 1489 encode_stateid(xdr, args->context);
1520 1490
1521 RESERVE_SPACE(16); 1491 p = reserve_space(xdr, 16);
1522 WRITE64(args->offset); 1492 p = xdr_encode_hyper(p, args->offset);
1523 WRITE32(args->stable); 1493 *p++ = cpu_to_be32(args->stable);
1524 WRITE32(args->count); 1494 *p = cpu_to_be32(args->count);
1525 1495
1526 xdr_write_pages(xdr, args->pages, args->pgbase, args->count); 1496 xdr_write_pages(xdr, args->pages, args->pgbase, args->count);
1527 hdr->nops++; 1497 hdr->nops++;
@@ -1532,10 +1502,10 @@ static void encode_delegreturn(struct xdr_stream *xdr, const nfs4_stateid *state
1532{ 1502{
1533 __be32 *p; 1503 __be32 *p;
1534 1504
1535 RESERVE_SPACE(4+NFS4_STATEID_SIZE); 1505 p = reserve_space(xdr, 4+NFS4_STATEID_SIZE);
1536 1506
1537 WRITE32(OP_DELEGRETURN); 1507 *p++ = cpu_to_be32(OP_DELEGRETURN);
1538 WRITEMEM(stateid->data, NFS4_STATEID_SIZE); 1508 xdr_encode_opaque_fixed(p, stateid->data, NFS4_STATEID_SIZE);
1539 hdr->nops++; 1509 hdr->nops++;
1540 hdr->replen += decode_delegreturn_maxsz; 1510 hdr->replen += decode_delegreturn_maxsz;
1541} 1511}
@@ -1548,16 +1518,16 @@ static void encode_exchange_id(struct xdr_stream *xdr,
1548{ 1518{
1549 __be32 *p; 1519 __be32 *p;
1550 1520
1551 RESERVE_SPACE(4 + sizeof(args->verifier->data)); 1521 p = reserve_space(xdr, 4 + sizeof(args->verifier->data));
1552 WRITE32(OP_EXCHANGE_ID); 1522 *p++ = cpu_to_be32(OP_EXCHANGE_ID);
1553 WRITEMEM(args->verifier->data, sizeof(args->verifier->data)); 1523 xdr_encode_opaque_fixed(p, args->verifier->data, sizeof(args->verifier->data));
1554 1524
1555 encode_string(xdr, args->id_len, args->id); 1525 encode_string(xdr, args->id_len, args->id);
1556 1526
1557 RESERVE_SPACE(12); 1527 p = reserve_space(xdr, 12);
1558 WRITE32(args->flags); 1528 *p++ = cpu_to_be32(args->flags);
1559 WRITE32(0); /* zero length state_protect4_a */ 1529 *p++ = cpu_to_be32(0); /* zero length state_protect4_a */
1560 WRITE32(0); /* zero length implementation id array */ 1530 *p = cpu_to_be32(0); /* zero length implementation id array */
1561 hdr->nops++; 1531 hdr->nops++;
1562 hdr->replen += decode_exchange_id_maxsz; 1532 hdr->replen += decode_exchange_id_maxsz;
1563} 1533}
@@ -1571,55 +1541,43 @@ static void encode_create_session(struct xdr_stream *xdr,
1571 uint32_t len; 1541 uint32_t len;
1572 struct nfs_client *clp = args->client; 1542 struct nfs_client *clp = args->client;
1573 1543
1574 RESERVE_SPACE(4); 1544 len = scnprintf(machine_name, sizeof(machine_name), "%s",
1575 WRITE32(OP_CREATE_SESSION); 1545 clp->cl_ipaddr);
1576
1577 RESERVE_SPACE(8);
1578 WRITE64(clp->cl_ex_clid);
1579 1546
1580 RESERVE_SPACE(8); 1547 p = reserve_space(xdr, 20 + 2*28 + 20 + len + 12);
1581 WRITE32(clp->cl_seqid); /*Sequence id */ 1548 *p++ = cpu_to_be32(OP_CREATE_SESSION);
1582 WRITE32(args->flags); /*flags */ 1549 p = xdr_encode_hyper(p, clp->cl_ex_clid);
1550 *p++ = cpu_to_be32(clp->cl_seqid); /*Sequence id */
1551 *p++ = cpu_to_be32(args->flags); /*flags */
1583 1552
1584 RESERVE_SPACE(2*28); /* 2 channel_attrs */
1585 /* Fore Channel */ 1553 /* Fore Channel */
1586 WRITE32(args->fc_attrs.headerpadsz); /* header padding size */ 1554 *p++ = cpu_to_be32(args->fc_attrs.headerpadsz); /* header padding size */
1587 WRITE32(args->fc_attrs.max_rqst_sz); /* max req size */ 1555 *p++ = cpu_to_be32(args->fc_attrs.max_rqst_sz); /* max req size */
1588 WRITE32(args->fc_attrs.max_resp_sz); /* max resp size */ 1556 *p++ = cpu_to_be32(args->fc_attrs.max_resp_sz); /* max resp size */
1589 WRITE32(args->fc_attrs.max_resp_sz_cached); /* Max resp sz cached */ 1557 *p++ = cpu_to_be32(args->fc_attrs.max_resp_sz_cached); /* Max resp sz cached */
1590 WRITE32(args->fc_attrs.max_ops); /* max operations */ 1558 *p++ = cpu_to_be32(args->fc_attrs.max_ops); /* max operations */
1591 WRITE32(args->fc_attrs.max_reqs); /* max requests */ 1559 *p++ = cpu_to_be32(args->fc_attrs.max_reqs); /* max requests */
1592 WRITE32(0); /* rdmachannel_attrs */ 1560 *p++ = cpu_to_be32(0); /* rdmachannel_attrs */
1593 1561
1594 /* Back Channel */ 1562 /* Back Channel */
1595 WRITE32(args->fc_attrs.headerpadsz); /* header padding size */ 1563 *p++ = cpu_to_be32(args->fc_attrs.headerpadsz); /* header padding size */
1596 WRITE32(args->bc_attrs.max_rqst_sz); /* max req size */ 1564 *p++ = cpu_to_be32(args->bc_attrs.max_rqst_sz); /* max req size */
1597 WRITE32(args->bc_attrs.max_resp_sz); /* max resp size */ 1565 *p++ = cpu_to_be32(args->bc_attrs.max_resp_sz); /* max resp size */
1598 WRITE32(args->bc_attrs.max_resp_sz_cached); /* Max resp sz cached */ 1566 *p++ = cpu_to_be32(args->bc_attrs.max_resp_sz_cached); /* Max resp sz cached */
1599 WRITE32(args->bc_attrs.max_ops); /* max operations */ 1567 *p++ = cpu_to_be32(args->bc_attrs.max_ops); /* max operations */
1600 WRITE32(args->bc_attrs.max_reqs); /* max requests */ 1568 *p++ = cpu_to_be32(args->bc_attrs.max_reqs); /* max requests */
1601 WRITE32(0); /* rdmachannel_attrs */ 1569 *p++ = cpu_to_be32(0); /* rdmachannel_attrs */
1602 1570
1603 RESERVE_SPACE(4); 1571 *p++ = cpu_to_be32(args->cb_program); /* cb_program */
1604 WRITE32(args->cb_program); /* cb_program */ 1572 *p++ = cpu_to_be32(1);
1605 1573 *p++ = cpu_to_be32(RPC_AUTH_UNIX); /* auth_sys */
1606 RESERVE_SPACE(4); /* # of security flavors */
1607 WRITE32(1);
1608
1609 RESERVE_SPACE(4);
1610 WRITE32(RPC_AUTH_UNIX); /* auth_sys */
1611 1574
1612 /* authsys_parms rfc1831 */ 1575 /* authsys_parms rfc1831 */
1613 RESERVE_SPACE(4); 1576 *p++ = cpu_to_be32((u32)clp->cl_boot_time.tv_nsec); /* stamp */
1614 WRITE32((u32)clp->cl_boot_time.tv_nsec); /* stamp */ 1577 p = xdr_encode_opaque(p, machine_name, len);
1615 len = scnprintf(machine_name, sizeof(machine_name), "%s", 1578 *p++ = cpu_to_be32(0); /* UID */
1616 clp->cl_ipaddr); 1579 *p++ = cpu_to_be32(0); /* GID */
1617 RESERVE_SPACE(16 + len); 1580 *p = cpu_to_be32(0); /* No more gids */
1618 WRITE32(len);
1619 WRITEMEM(machine_name, len);
1620 WRITE32(0); /* UID */
1621 WRITE32(0); /* GID */
1622 WRITE32(0); /* No more gids */
1623 hdr->nops++; 1581 hdr->nops++;
1624 hdr->replen += decode_create_session_maxsz; 1582 hdr->replen += decode_create_session_maxsz;
1625} 1583}
@@ -1629,9 +1587,9 @@ static void encode_destroy_session(struct xdr_stream *xdr,
1629 struct compound_hdr *hdr) 1587 struct compound_hdr *hdr)
1630{ 1588{
1631 __be32 *p; 1589 __be32 *p;
1632 RESERVE_SPACE(4 + NFS4_MAX_SESSIONID_LEN); 1590 p = reserve_space(xdr, 4 + NFS4_MAX_SESSIONID_LEN);
1633 WRITE32(OP_DESTROY_SESSION); 1591 *p++ = cpu_to_be32(OP_DESTROY_SESSION);
1634 WRITEMEM(session->sess_id.data, NFS4_MAX_SESSIONID_LEN); 1592 xdr_encode_opaque_fixed(p, session->sess_id.data, NFS4_MAX_SESSIONID_LEN);
1635 hdr->nops++; 1593 hdr->nops++;
1636 hdr->replen += decode_destroy_session_maxsz; 1594 hdr->replen += decode_destroy_session_maxsz;
1637} 1595}
@@ -1655,8 +1613,8 @@ static void encode_sequence(struct xdr_stream *xdr,
1655 WARN_ON(args->sa_slotid == NFS4_MAX_SLOT_TABLE); 1613 WARN_ON(args->sa_slotid == NFS4_MAX_SLOT_TABLE);
1656 slot = tp->slots + args->sa_slotid; 1614 slot = tp->slots + args->sa_slotid;
1657 1615
1658 RESERVE_SPACE(4); 1616 p = reserve_space(xdr, 4 + NFS4_MAX_SESSIONID_LEN + 16);
1659 WRITE32(OP_SEQUENCE); 1617 *p++ = cpu_to_be32(OP_SEQUENCE);
1660 1618
1661 /* 1619 /*
1662 * Sessionid + seqid + slotid + max slotid + cache_this 1620 * Sessionid + seqid + slotid + max slotid + cache_this
@@ -1670,12 +1628,11 @@ static void encode_sequence(struct xdr_stream *xdr,
1670 ((u32 *)session->sess_id.data)[3], 1628 ((u32 *)session->sess_id.data)[3],
1671 slot->seq_nr, args->sa_slotid, 1629 slot->seq_nr, args->sa_slotid,
1672 tp->highest_used_slotid, args->sa_cache_this); 1630 tp->highest_used_slotid, args->sa_cache_this);
1673 RESERVE_SPACE(NFS4_MAX_SESSIONID_LEN + 16); 1631 p = xdr_encode_opaque_fixed(p, session->sess_id.data, NFS4_MAX_SESSIONID_LEN);
1674 WRITEMEM(session->sess_id.data, NFS4_MAX_SESSIONID_LEN); 1632 *p++ = cpu_to_be32(slot->seq_nr);
1675 WRITE32(slot->seq_nr); 1633 *p++ = cpu_to_be32(args->sa_slotid);
1676 WRITE32(args->sa_slotid); 1634 *p++ = cpu_to_be32(tp->highest_used_slotid);
1677 WRITE32(tp->highest_used_slotid); 1635 *p = cpu_to_be32(args->sa_cache_this);
1678 WRITE32(args->sa_cache_this);
1679 hdr->nops++; 1636 hdr->nops++;
1680 hdr->replen += decode_sequence_maxsz; 1637 hdr->replen += decode_sequence_maxsz;
1681#endif /* CONFIG_NFS_V4_1 */ 1638#endif /* CONFIG_NFS_V4_1 */
@@ -2466,68 +2423,53 @@ static int nfs4_xdr_enc_get_lease_time(struct rpc_rqst *req, uint32_t *p,
2466} 2423}
2467#endif /* CONFIG_NFS_V4_1 */ 2424#endif /* CONFIG_NFS_V4_1 */
2468 2425
2469/* 2426static void print_overflow_msg(const char *func, const struct xdr_stream *xdr)
2470 * START OF "GENERIC" DECODE ROUTINES. 2427{
2471 * These may look a little ugly since they are imported from a "generic" 2428 dprintk("nfs: %s: prematurely hit end of receive buffer. "
2472 * set of XDR encode/decode routines which are intended to be shared by 2429 "Remaining buffer length is %tu words.\n",
2473 * all of our NFSv4 implementations (OpenBSD, MacOS X...). 2430 func, xdr->end - xdr->p);
2474 * 2431}
2475 * If the pain of reading these is too great, it should be a straightforward
2476 * task to translate them into Linux-specific versions which are more
2477 * consistent with the style used in NFSv2/v3...
2478 */
2479#define READ32(x) (x) = ntohl(*p++)
2480#define READ64(x) do { \
2481 (x) = (u64)ntohl(*p++) << 32; \
2482 (x) |= ntohl(*p++); \
2483} while (0)
2484#define READTIME(x) do { \
2485 p++; \
2486 (x.tv_sec) = ntohl(*p++); \
2487 (x.tv_nsec) = ntohl(*p++); \
2488} while (0)
2489#define COPYMEM(x,nbytes) do { \
2490 memcpy((x), p, nbytes); \
2491 p += XDR_QUADLEN(nbytes); \
2492} while (0)
2493
2494#define READ_BUF(nbytes) do { \
2495 p = xdr_inline_decode(xdr, nbytes); \
2496 if (unlikely(!p)) { \
2497 dprintk("nfs: %s: prematurely hit end of receive" \
2498 " buffer\n", __func__); \
2499 dprintk("nfs: %s: xdr->p=%p, bytes=%u, xdr->end=%p\n", \
2500 __func__, xdr->p, nbytes, xdr->end); \
2501 return -EIO; \
2502 } \
2503} while (0)
2504 2432
2505static int decode_opaque_inline(struct xdr_stream *xdr, unsigned int *len, char **string) 2433static int decode_opaque_inline(struct xdr_stream *xdr, unsigned int *len, char **string)
2506{ 2434{
2507 __be32 *p; 2435 __be32 *p;
2508 2436
2509 READ_BUF(4); 2437 p = xdr_inline_decode(xdr, 4);
2510 READ32(*len); 2438 if (unlikely(!p))
2511 READ_BUF(*len); 2439 goto out_overflow;
2440 *len = be32_to_cpup(p);
2441 p = xdr_inline_decode(xdr, *len);
2442 if (unlikely(!p))
2443 goto out_overflow;
2512 *string = (char *)p; 2444 *string = (char *)p;
2513 return 0; 2445 return 0;
2446out_overflow:
2447 print_overflow_msg(__func__, xdr);
2448 return -EIO;
2514} 2449}
2515 2450
2516static int decode_compound_hdr(struct xdr_stream *xdr, struct compound_hdr *hdr) 2451static int decode_compound_hdr(struct xdr_stream *xdr, struct compound_hdr *hdr)
2517{ 2452{
2518 __be32 *p; 2453 __be32 *p;
2519 2454
2520 READ_BUF(8); 2455 p = xdr_inline_decode(xdr, 8);
2521 READ32(hdr->status); 2456 if (unlikely(!p))
2522 READ32(hdr->taglen); 2457 goto out_overflow;
2458 hdr->status = be32_to_cpup(p++);
2459 hdr->taglen = be32_to_cpup(p);
2523 2460
2524 READ_BUF(hdr->taglen + 4); 2461 p = xdr_inline_decode(xdr, hdr->taglen + 4);
2462 if (unlikely(!p))
2463 goto out_overflow;
2525 hdr->tag = (char *)p; 2464 hdr->tag = (char *)p;
2526 p += XDR_QUADLEN(hdr->taglen); 2465 p += XDR_QUADLEN(hdr->taglen);
2527 READ32(hdr->nops); 2466 hdr->nops = be32_to_cpup(p);
2528 if (unlikely(hdr->nops < 1)) 2467 if (unlikely(hdr->nops < 1))
2529 return nfs4_stat_to_errno(hdr->status); 2468 return nfs4_stat_to_errno(hdr->status);
2530 return 0; 2469 return 0;
2470out_overflow:
2471 print_overflow_msg(__func__, xdr);
2472 return -EIO;
2531} 2473}
2532 2474
2533static int decode_op_hdr(struct xdr_stream *xdr, enum nfs_opnum4 expected) 2475static int decode_op_hdr(struct xdr_stream *xdr, enum nfs_opnum4 expected)
@@ -2536,18 +2478,23 @@ static int decode_op_hdr(struct xdr_stream *xdr, enum nfs_opnum4 expected)
2536 uint32_t opnum; 2478 uint32_t opnum;
2537 int32_t nfserr; 2479 int32_t nfserr;
2538 2480
2539 READ_BUF(8); 2481 p = xdr_inline_decode(xdr, 8);
2540 READ32(opnum); 2482 if (unlikely(!p))
2483 goto out_overflow;
2484 opnum = be32_to_cpup(p++);
2541 if (opnum != expected) { 2485 if (opnum != expected) {
2542 dprintk("nfs: Server returned operation" 2486 dprintk("nfs: Server returned operation"
2543 " %d but we issued a request for %d\n", 2487 " %d but we issued a request for %d\n",
2544 opnum, expected); 2488 opnum, expected);
2545 return -EIO; 2489 return -EIO;
2546 } 2490 }
2547 READ32(nfserr); 2491 nfserr = be32_to_cpup(p);
2548 if (nfserr != NFS_OK) 2492 if (nfserr != NFS_OK)
2549 return nfs4_stat_to_errno(nfserr); 2493 return nfs4_stat_to_errno(nfserr);
2550 return 0; 2494 return 0;
2495out_overflow:
2496 print_overflow_msg(__func__, xdr);
2497 return -EIO;
2551} 2498}
2552 2499
2553/* Dummy routine */ 2500/* Dummy routine */
@@ -2557,8 +2504,11 @@ static int decode_ace(struct xdr_stream *xdr, void *ace, struct nfs_client *clp)
2557 unsigned int strlen; 2504 unsigned int strlen;
2558 char *str; 2505 char *str;
2559 2506
2560 READ_BUF(12); 2507 p = xdr_inline_decode(xdr, 12);
2561 return decode_opaque_inline(xdr, &strlen, &str); 2508 if (likely(p))
2509 return decode_opaque_inline(xdr, &strlen, &str);
2510 print_overflow_msg(__func__, xdr);
2511 return -EIO;
2562} 2512}
2563 2513
2564static int decode_attr_bitmap(struct xdr_stream *xdr, uint32_t *bitmap) 2514static int decode_attr_bitmap(struct xdr_stream *xdr, uint32_t *bitmap)
@@ -2566,27 +2516,39 @@ static int decode_attr_bitmap(struct xdr_stream *xdr, uint32_t *bitmap)
2566 uint32_t bmlen; 2516 uint32_t bmlen;
2567 __be32 *p; 2517 __be32 *p;
2568 2518
2569 READ_BUF(4); 2519 p = xdr_inline_decode(xdr, 4);
2570 READ32(bmlen); 2520 if (unlikely(!p))
2521 goto out_overflow;
2522 bmlen = be32_to_cpup(p);
2571 2523
2572 bitmap[0] = bitmap[1] = 0; 2524 bitmap[0] = bitmap[1] = 0;
2573 READ_BUF((bmlen << 2)); 2525 p = xdr_inline_decode(xdr, (bmlen << 2));
2526 if (unlikely(!p))
2527 goto out_overflow;
2574 if (bmlen > 0) { 2528 if (bmlen > 0) {
2575 READ32(bitmap[0]); 2529 bitmap[0] = be32_to_cpup(p++);
2576 if (bmlen > 1) 2530 if (bmlen > 1)
2577 READ32(bitmap[1]); 2531 bitmap[1] = be32_to_cpup(p);
2578 } 2532 }
2579 return 0; 2533 return 0;
2534out_overflow:
2535 print_overflow_msg(__func__, xdr);
2536 return -EIO;
2580} 2537}
2581 2538
2582static inline int decode_attr_length(struct xdr_stream *xdr, uint32_t *attrlen, __be32 **savep) 2539static inline int decode_attr_length(struct xdr_stream *xdr, uint32_t *attrlen, __be32 **savep)
2583{ 2540{
2584 __be32 *p; 2541 __be32 *p;
2585 2542
2586 READ_BUF(4); 2543 p = xdr_inline_decode(xdr, 4);
2587 READ32(*attrlen); 2544 if (unlikely(!p))
2545 goto out_overflow;
2546 *attrlen = be32_to_cpup(p);
2588 *savep = xdr->p; 2547 *savep = xdr->p;
2589 return 0; 2548 return 0;
2549out_overflow:
2550 print_overflow_msg(__func__, xdr);
2551 return -EIO;
2590} 2552}
2591 2553
2592static int decode_attr_supported(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *bitmask) 2554static int decode_attr_supported(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *bitmask)
@@ -2609,8 +2571,10 @@ static int decode_attr_type(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *
2609 if (unlikely(bitmap[0] & (FATTR4_WORD0_TYPE - 1U))) 2571 if (unlikely(bitmap[0] & (FATTR4_WORD0_TYPE - 1U)))
2610 return -EIO; 2572 return -EIO;
2611 if (likely(bitmap[0] & FATTR4_WORD0_TYPE)) { 2573 if (likely(bitmap[0] & FATTR4_WORD0_TYPE)) {
2612 READ_BUF(4); 2574 p = xdr_inline_decode(xdr, 4);
2613 READ32(*type); 2575 if (unlikely(!p))
2576 goto out_overflow;
2577 *type = be32_to_cpup(p);
2614 if (*type < NF4REG || *type > NF4NAMEDATTR) { 2578 if (*type < NF4REG || *type > NF4NAMEDATTR) {
2615 dprintk("%s: bad type %d\n", __func__, *type); 2579 dprintk("%s: bad type %d\n", __func__, *type);
2616 return -EIO; 2580 return -EIO;
@@ -2620,6 +2584,9 @@ static int decode_attr_type(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *
2620 } 2584 }
2621 dprintk("%s: type=0%o\n", __func__, nfs_type2fmt[*type]); 2585 dprintk("%s: type=0%o\n", __func__, nfs_type2fmt[*type]);
2622 return ret; 2586 return ret;
2587out_overflow:
2588 print_overflow_msg(__func__, xdr);
2589 return -EIO;
2623} 2590}
2624 2591
2625static int decode_attr_change(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *change) 2592static int decode_attr_change(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *change)
@@ -2631,14 +2598,19 @@ static int decode_attr_change(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t
2631 if (unlikely(bitmap[0] & (FATTR4_WORD0_CHANGE - 1U))) 2598 if (unlikely(bitmap[0] & (FATTR4_WORD0_CHANGE - 1U)))
2632 return -EIO; 2599 return -EIO;
2633 if (likely(bitmap[0] & FATTR4_WORD0_CHANGE)) { 2600 if (likely(bitmap[0] & FATTR4_WORD0_CHANGE)) {
2634 READ_BUF(8); 2601 p = xdr_inline_decode(xdr, 8);
2635 READ64(*change); 2602 if (unlikely(!p))
2603 goto out_overflow;
2604 xdr_decode_hyper(p, change);
2636 bitmap[0] &= ~FATTR4_WORD0_CHANGE; 2605 bitmap[0] &= ~FATTR4_WORD0_CHANGE;
2637 ret = NFS_ATTR_FATTR_CHANGE; 2606 ret = NFS_ATTR_FATTR_CHANGE;
2638 } 2607 }
2639 dprintk("%s: change attribute=%Lu\n", __func__, 2608 dprintk("%s: change attribute=%Lu\n", __func__,
2640 (unsigned long long)*change); 2609 (unsigned long long)*change);
2641 return ret; 2610 return ret;
2611out_overflow:
2612 print_overflow_msg(__func__, xdr);
2613 return -EIO;
2642} 2614}
2643 2615
2644static int decode_attr_size(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *size) 2616static int decode_attr_size(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *size)
@@ -2650,13 +2622,18 @@ static int decode_attr_size(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *
2650 if (unlikely(bitmap[0] & (FATTR4_WORD0_SIZE - 1U))) 2622 if (unlikely(bitmap[0] & (FATTR4_WORD0_SIZE - 1U)))
2651 return -EIO; 2623 return -EIO;
2652 if (likely(bitmap[0] & FATTR4_WORD0_SIZE)) { 2624 if (likely(bitmap[0] & FATTR4_WORD0_SIZE)) {
2653 READ_BUF(8); 2625 p = xdr_inline_decode(xdr, 8);
2654 READ64(*size); 2626 if (unlikely(!p))
2627 goto out_overflow;
2628 xdr_decode_hyper(p, size);
2655 bitmap[0] &= ~FATTR4_WORD0_SIZE; 2629 bitmap[0] &= ~FATTR4_WORD0_SIZE;
2656 ret = NFS_ATTR_FATTR_SIZE; 2630 ret = NFS_ATTR_FATTR_SIZE;
2657 } 2631 }
2658 dprintk("%s: file size=%Lu\n", __func__, (unsigned long long)*size); 2632 dprintk("%s: file size=%Lu\n", __func__, (unsigned long long)*size);
2659 return ret; 2633 return ret;
2634out_overflow:
2635 print_overflow_msg(__func__, xdr);
2636 return -EIO;
2660} 2637}
2661 2638
2662static int decode_attr_link_support(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *res) 2639static int decode_attr_link_support(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *res)
@@ -2667,12 +2644,17 @@ static int decode_attr_link_support(struct xdr_stream *xdr, uint32_t *bitmap, ui
2667 if (unlikely(bitmap[0] & (FATTR4_WORD0_LINK_SUPPORT - 1U))) 2644 if (unlikely(bitmap[0] & (FATTR4_WORD0_LINK_SUPPORT - 1U)))
2668 return -EIO; 2645 return -EIO;
2669 if (likely(bitmap[0] & FATTR4_WORD0_LINK_SUPPORT)) { 2646 if (likely(bitmap[0] & FATTR4_WORD0_LINK_SUPPORT)) {
2670 READ_BUF(4); 2647 p = xdr_inline_decode(xdr, 4);
2671 READ32(*res); 2648 if (unlikely(!p))
2649 goto out_overflow;
2650 *res = be32_to_cpup(p);
2672 bitmap[0] &= ~FATTR4_WORD0_LINK_SUPPORT; 2651 bitmap[0] &= ~FATTR4_WORD0_LINK_SUPPORT;
2673 } 2652 }
2674 dprintk("%s: link support=%s\n", __func__, *res == 0 ? "false" : "true"); 2653 dprintk("%s: link support=%s\n", __func__, *res == 0 ? "false" : "true");
2675 return 0; 2654 return 0;
2655out_overflow:
2656 print_overflow_msg(__func__, xdr);
2657 return -EIO;
2676} 2658}
2677 2659
2678static int decode_attr_symlink_support(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *res) 2660static int decode_attr_symlink_support(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *res)
@@ -2683,12 +2665,17 @@ static int decode_attr_symlink_support(struct xdr_stream *xdr, uint32_t *bitmap,
2683 if (unlikely(bitmap[0] & (FATTR4_WORD0_SYMLINK_SUPPORT - 1U))) 2665 if (unlikely(bitmap[0] & (FATTR4_WORD0_SYMLINK_SUPPORT - 1U)))
2684 return -EIO; 2666 return -EIO;
2685 if (likely(bitmap[0] & FATTR4_WORD0_SYMLINK_SUPPORT)) { 2667 if (likely(bitmap[0] & FATTR4_WORD0_SYMLINK_SUPPORT)) {
2686 READ_BUF(4); 2668 p = xdr_inline_decode(xdr, 4);
2687 READ32(*res); 2669 if (unlikely(!p))
2670 goto out_overflow;
2671 *res = be32_to_cpup(p);
2688 bitmap[0] &= ~FATTR4_WORD0_SYMLINK_SUPPORT; 2672 bitmap[0] &= ~FATTR4_WORD0_SYMLINK_SUPPORT;
2689 } 2673 }
2690 dprintk("%s: symlink support=%s\n", __func__, *res == 0 ? "false" : "true"); 2674 dprintk("%s: symlink support=%s\n", __func__, *res == 0 ? "false" : "true");
2691 return 0; 2675 return 0;
2676out_overflow:
2677 print_overflow_msg(__func__, xdr);
2678 return -EIO;
2692} 2679}
2693 2680
2694static int decode_attr_fsid(struct xdr_stream *xdr, uint32_t *bitmap, struct nfs_fsid *fsid) 2681static int decode_attr_fsid(struct xdr_stream *xdr, uint32_t *bitmap, struct nfs_fsid *fsid)
@@ -2701,9 +2688,11 @@ static int decode_attr_fsid(struct xdr_stream *xdr, uint32_t *bitmap, struct nfs
2701 if (unlikely(bitmap[0] & (FATTR4_WORD0_FSID - 1U))) 2688 if (unlikely(bitmap[0] & (FATTR4_WORD0_FSID - 1U)))
2702 return -EIO; 2689 return -EIO;
2703 if (likely(bitmap[0] & FATTR4_WORD0_FSID)) { 2690 if (likely(bitmap[0] & FATTR4_WORD0_FSID)) {
2704 READ_BUF(16); 2691 p = xdr_inline_decode(xdr, 16);
2705 READ64(fsid->major); 2692 if (unlikely(!p))
2706 READ64(fsid->minor); 2693 goto out_overflow;
2694 p = xdr_decode_hyper(p, &fsid->major);
2695 xdr_decode_hyper(p, &fsid->minor);
2707 bitmap[0] &= ~FATTR4_WORD0_FSID; 2696 bitmap[0] &= ~FATTR4_WORD0_FSID;
2708 ret = NFS_ATTR_FATTR_FSID; 2697 ret = NFS_ATTR_FATTR_FSID;
2709 } 2698 }
@@ -2711,6 +2700,9 @@ static int decode_attr_fsid(struct xdr_stream *xdr, uint32_t *bitmap, struct nfs
2711 (unsigned long long)fsid->major, 2700 (unsigned long long)fsid->major,
2712 (unsigned long long)fsid->minor); 2701 (unsigned long long)fsid->minor);
2713 return ret; 2702 return ret;
2703out_overflow:
2704 print_overflow_msg(__func__, xdr);
2705 return -EIO;
2714} 2706}
2715 2707
2716static int decode_attr_lease_time(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *res) 2708static int decode_attr_lease_time(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *res)
@@ -2721,12 +2713,17 @@ static int decode_attr_lease_time(struct xdr_stream *xdr, uint32_t *bitmap, uint
2721 if (unlikely(bitmap[0] & (FATTR4_WORD0_LEASE_TIME - 1U))) 2713 if (unlikely(bitmap[0] & (FATTR4_WORD0_LEASE_TIME - 1U)))
2722 return -EIO; 2714 return -EIO;
2723 if (likely(bitmap[0] & FATTR4_WORD0_LEASE_TIME)) { 2715 if (likely(bitmap[0] & FATTR4_WORD0_LEASE_TIME)) {
2724 READ_BUF(4); 2716 p = xdr_inline_decode(xdr, 4);
2725 READ32(*res); 2717 if (unlikely(!p))
2718 goto out_overflow;
2719 *res = be32_to_cpup(p);
2726 bitmap[0] &= ~FATTR4_WORD0_LEASE_TIME; 2720 bitmap[0] &= ~FATTR4_WORD0_LEASE_TIME;
2727 } 2721 }
2728 dprintk("%s: file size=%u\n", __func__, (unsigned int)*res); 2722 dprintk("%s: file size=%u\n", __func__, (unsigned int)*res);
2729 return 0; 2723 return 0;
2724out_overflow:
2725 print_overflow_msg(__func__, xdr);
2726 return -EIO;
2730} 2727}
2731 2728
2732static int decode_attr_aclsupport(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *res) 2729static int decode_attr_aclsupport(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *res)
@@ -2737,12 +2734,17 @@ static int decode_attr_aclsupport(struct xdr_stream *xdr, uint32_t *bitmap, uint
2737 if (unlikely(bitmap[0] & (FATTR4_WORD0_ACLSUPPORT - 1U))) 2734 if (unlikely(bitmap[0] & (FATTR4_WORD0_ACLSUPPORT - 1U)))
2738 return -EIO; 2735 return -EIO;
2739 if (likely(bitmap[0] & FATTR4_WORD0_ACLSUPPORT)) { 2736 if (likely(bitmap[0] & FATTR4_WORD0_ACLSUPPORT)) {
2740 READ_BUF(4); 2737 p = xdr_inline_decode(xdr, 4);
2741 READ32(*res); 2738 if (unlikely(!p))
2739 goto out_overflow;
2740 *res = be32_to_cpup(p);
2742 bitmap[0] &= ~FATTR4_WORD0_ACLSUPPORT; 2741 bitmap[0] &= ~FATTR4_WORD0_ACLSUPPORT;
2743 } 2742 }
2744 dprintk("%s: ACLs supported=%u\n", __func__, (unsigned int)*res); 2743 dprintk("%s: ACLs supported=%u\n", __func__, (unsigned int)*res);
2745 return 0; 2744 return 0;
2745out_overflow:
2746 print_overflow_msg(__func__, xdr);
2747 return -EIO;
2746} 2748}
2747 2749
2748static int decode_attr_fileid(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *fileid) 2750static int decode_attr_fileid(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *fileid)
@@ -2754,13 +2756,18 @@ static int decode_attr_fileid(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t
2754 if (unlikely(bitmap[0] & (FATTR4_WORD0_FILEID - 1U))) 2756 if (unlikely(bitmap[0] & (FATTR4_WORD0_FILEID - 1U)))
2755 return -EIO; 2757 return -EIO;
2756 if (likely(bitmap[0] & FATTR4_WORD0_FILEID)) { 2758 if (likely(bitmap[0] & FATTR4_WORD0_FILEID)) {
2757 READ_BUF(8); 2759 p = xdr_inline_decode(xdr, 8);
2758 READ64(*fileid); 2760 if (unlikely(!p))
2761 goto out_overflow;
2762 xdr_decode_hyper(p, fileid);
2759 bitmap[0] &= ~FATTR4_WORD0_FILEID; 2763 bitmap[0] &= ~FATTR4_WORD0_FILEID;
2760 ret = NFS_ATTR_FATTR_FILEID; 2764 ret = NFS_ATTR_FATTR_FILEID;
2761 } 2765 }
2762 dprintk("%s: fileid=%Lu\n", __func__, (unsigned long long)*fileid); 2766 dprintk("%s: fileid=%Lu\n", __func__, (unsigned long long)*fileid);
2763 return ret; 2767 return ret;
2768out_overflow:
2769 print_overflow_msg(__func__, xdr);
2770 return -EIO;
2764} 2771}
2765 2772
2766static int decode_attr_mounted_on_fileid(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *fileid) 2773static int decode_attr_mounted_on_fileid(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *fileid)
@@ -2772,13 +2779,18 @@ static int decode_attr_mounted_on_fileid(struct xdr_stream *xdr, uint32_t *bitma
2772 if (unlikely(bitmap[1] & (FATTR4_WORD1_MOUNTED_ON_FILEID - 1U))) 2779 if (unlikely(bitmap[1] & (FATTR4_WORD1_MOUNTED_ON_FILEID - 1U)))
2773 return -EIO; 2780 return -EIO;
2774 if (likely(bitmap[1] & FATTR4_WORD1_MOUNTED_ON_FILEID)) { 2781 if (likely(bitmap[1] & FATTR4_WORD1_MOUNTED_ON_FILEID)) {
2775 READ_BUF(8); 2782 p = xdr_inline_decode(xdr, 8);
2776 READ64(*fileid); 2783 if (unlikely(!p))
2784 goto out_overflow;
2785 xdr_decode_hyper(p, fileid);
2777 bitmap[1] &= ~FATTR4_WORD1_MOUNTED_ON_FILEID; 2786 bitmap[1] &= ~FATTR4_WORD1_MOUNTED_ON_FILEID;
2778 ret = NFS_ATTR_FATTR_FILEID; 2787 ret = NFS_ATTR_FATTR_FILEID;
2779 } 2788 }
2780 dprintk("%s: fileid=%Lu\n", __func__, (unsigned long long)*fileid); 2789 dprintk("%s: fileid=%Lu\n", __func__, (unsigned long long)*fileid);
2781 return ret; 2790 return ret;
2791out_overflow:
2792 print_overflow_msg(__func__, xdr);
2793 return -EIO;
2782} 2794}
2783 2795
2784static int decode_attr_files_avail(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *res) 2796static int decode_attr_files_avail(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *res)
@@ -2790,12 +2802,17 @@ static int decode_attr_files_avail(struct xdr_stream *xdr, uint32_t *bitmap, uin
2790 if (unlikely(bitmap[0] & (FATTR4_WORD0_FILES_AVAIL - 1U))) 2802 if (unlikely(bitmap[0] & (FATTR4_WORD0_FILES_AVAIL - 1U)))
2791 return -EIO; 2803 return -EIO;
2792 if (likely(bitmap[0] & FATTR4_WORD0_FILES_AVAIL)) { 2804 if (likely(bitmap[0] & FATTR4_WORD0_FILES_AVAIL)) {
2793 READ_BUF(8); 2805 p = xdr_inline_decode(xdr, 8);
2794 READ64(*res); 2806 if (unlikely(!p))
2807 goto out_overflow;
2808 xdr_decode_hyper(p, res);
2795 bitmap[0] &= ~FATTR4_WORD0_FILES_AVAIL; 2809 bitmap[0] &= ~FATTR4_WORD0_FILES_AVAIL;
2796 } 2810 }
2797 dprintk("%s: files avail=%Lu\n", __func__, (unsigned long long)*res); 2811 dprintk("%s: files avail=%Lu\n", __func__, (unsigned long long)*res);
2798 return status; 2812 return status;
2813out_overflow:
2814 print_overflow_msg(__func__, xdr);
2815 return -EIO;
2799} 2816}
2800 2817
2801static int decode_attr_files_free(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *res) 2818static int decode_attr_files_free(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *res)
@@ -2807,12 +2824,17 @@ static int decode_attr_files_free(struct xdr_stream *xdr, uint32_t *bitmap, uint
2807 if (unlikely(bitmap[0] & (FATTR4_WORD0_FILES_FREE - 1U))) 2824 if (unlikely(bitmap[0] & (FATTR4_WORD0_FILES_FREE - 1U)))
2808 return -EIO; 2825 return -EIO;
2809 if (likely(bitmap[0] & FATTR4_WORD0_FILES_FREE)) { 2826 if (likely(bitmap[0] & FATTR4_WORD0_FILES_FREE)) {
2810 READ_BUF(8); 2827 p = xdr_inline_decode(xdr, 8);
2811 READ64(*res); 2828 if (unlikely(!p))
2829 goto out_overflow;
2830 xdr_decode_hyper(p, res);
2812 bitmap[0] &= ~FATTR4_WORD0_FILES_FREE; 2831 bitmap[0] &= ~FATTR4_WORD0_FILES_FREE;
2813 } 2832 }
2814 dprintk("%s: files free=%Lu\n", __func__, (unsigned long long)*res); 2833 dprintk("%s: files free=%Lu\n", __func__, (unsigned long long)*res);
2815 return status; 2834 return status;
2835out_overflow:
2836 print_overflow_msg(__func__, xdr);
2837 return -EIO;
2816} 2838}
2817 2839
2818static int decode_attr_files_total(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *res) 2840static int decode_attr_files_total(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *res)
@@ -2824,12 +2846,17 @@ static int decode_attr_files_total(struct xdr_stream *xdr, uint32_t *bitmap, uin
2824 if (unlikely(bitmap[0] & (FATTR4_WORD0_FILES_TOTAL - 1U))) 2846 if (unlikely(bitmap[0] & (FATTR4_WORD0_FILES_TOTAL - 1U)))
2825 return -EIO; 2847 return -EIO;
2826 if (likely(bitmap[0] & FATTR4_WORD0_FILES_TOTAL)) { 2848 if (likely(bitmap[0] & FATTR4_WORD0_FILES_TOTAL)) {
2827 READ_BUF(8); 2849 p = xdr_inline_decode(xdr, 8);
2828 READ64(*res); 2850 if (unlikely(!p))
2851 goto out_overflow;
2852 xdr_decode_hyper(p, res);
2829 bitmap[0] &= ~FATTR4_WORD0_FILES_TOTAL; 2853 bitmap[0] &= ~FATTR4_WORD0_FILES_TOTAL;
2830 } 2854 }
2831 dprintk("%s: files total=%Lu\n", __func__, (unsigned long long)*res); 2855 dprintk("%s: files total=%Lu\n", __func__, (unsigned long long)*res);
2832 return status; 2856 return status;
2857out_overflow:
2858 print_overflow_msg(__func__, xdr);
2859 return -EIO;
2833} 2860}
2834 2861
2835static int decode_pathname(struct xdr_stream *xdr, struct nfs4_pathname *path) 2862static int decode_pathname(struct xdr_stream *xdr, struct nfs4_pathname *path)
@@ -2838,8 +2865,10 @@ static int decode_pathname(struct xdr_stream *xdr, struct nfs4_pathname *path)
2838 __be32 *p; 2865 __be32 *p;
2839 int status = 0; 2866 int status = 0;
2840 2867
2841 READ_BUF(4); 2868 p = xdr_inline_decode(xdr, 4);
2842 READ32(n); 2869 if (unlikely(!p))
2870 goto out_overflow;
2871 n = be32_to_cpup(p);
2843 if (n == 0) 2872 if (n == 0)
2844 goto root_path; 2873 goto root_path;
2845 dprintk("path "); 2874 dprintk("path ");
@@ -2873,6 +2902,9 @@ out_eio:
2873 dprintk(" status %d", status); 2902 dprintk(" status %d", status);
2874 status = -EIO; 2903 status = -EIO;
2875 goto out; 2904 goto out;
2905out_overflow:
2906 print_overflow_msg(__func__, xdr);
2907 return -EIO;
2876} 2908}
2877 2909
2878static int decode_attr_fs_locations(struct xdr_stream *xdr, uint32_t *bitmap, struct nfs4_fs_locations *res) 2910static int decode_attr_fs_locations(struct xdr_stream *xdr, uint32_t *bitmap, struct nfs4_fs_locations *res)
@@ -2890,8 +2922,10 @@ static int decode_attr_fs_locations(struct xdr_stream *xdr, uint32_t *bitmap, st
2890 status = decode_pathname(xdr, &res->fs_path); 2922 status = decode_pathname(xdr, &res->fs_path);
2891 if (unlikely(status != 0)) 2923 if (unlikely(status != 0))
2892 goto out; 2924 goto out;
2893 READ_BUF(4); 2925 p = xdr_inline_decode(xdr, 4);
2894 READ32(n); 2926 if (unlikely(!p))
2927 goto out_overflow;
2928 n = be32_to_cpup(p);
2895 if (n <= 0) 2929 if (n <= 0)
2896 goto out_eio; 2930 goto out_eio;
2897 res->nlocations = 0; 2931 res->nlocations = 0;
@@ -2899,8 +2933,10 @@ static int decode_attr_fs_locations(struct xdr_stream *xdr, uint32_t *bitmap, st
2899 u32 m; 2933 u32 m;
2900 struct nfs4_fs_location *loc = &res->locations[res->nlocations]; 2934 struct nfs4_fs_location *loc = &res->locations[res->nlocations];
2901 2935
2902 READ_BUF(4); 2936 p = xdr_inline_decode(xdr, 4);
2903 READ32(m); 2937 if (unlikely(!p))
2938 goto out_overflow;
2939 m = be32_to_cpup(p);
2904 2940
2905 loc->nservers = 0; 2941 loc->nservers = 0;
2906 dprintk("%s: servers ", __func__); 2942 dprintk("%s: servers ", __func__);
@@ -2939,6 +2975,8 @@ static int decode_attr_fs_locations(struct xdr_stream *xdr, uint32_t *bitmap, st
2939out: 2975out:
2940 dprintk("%s: fs_locations done, error = %d\n", __func__, status); 2976 dprintk("%s: fs_locations done, error = %d\n", __func__, status);
2941 return status; 2977 return status;
2978out_overflow:
2979 print_overflow_msg(__func__, xdr);
2942out_eio: 2980out_eio:
2943 status = -EIO; 2981 status = -EIO;
2944 goto out; 2982 goto out;
@@ -2953,12 +2991,17 @@ static int decode_attr_maxfilesize(struct xdr_stream *xdr, uint32_t *bitmap, uin
2953 if (unlikely(bitmap[0] & (FATTR4_WORD0_MAXFILESIZE - 1U))) 2991 if (unlikely(bitmap[0] & (FATTR4_WORD0_MAXFILESIZE - 1U)))
2954 return -EIO; 2992 return -EIO;
2955 if (likely(bitmap[0] & FATTR4_WORD0_MAXFILESIZE)) { 2993 if (likely(bitmap[0] & FATTR4_WORD0_MAXFILESIZE)) {
2956 READ_BUF(8); 2994 p = xdr_inline_decode(xdr, 8);
2957 READ64(*res); 2995 if (unlikely(!p))
2996 goto out_overflow;
2997 xdr_decode_hyper(p, res);
2958 bitmap[0] &= ~FATTR4_WORD0_MAXFILESIZE; 2998 bitmap[0] &= ~FATTR4_WORD0_MAXFILESIZE;
2959 } 2999 }
2960 dprintk("%s: maxfilesize=%Lu\n", __func__, (unsigned long long)*res); 3000 dprintk("%s: maxfilesize=%Lu\n", __func__, (unsigned long long)*res);
2961 return status; 3001 return status;
3002out_overflow:
3003 print_overflow_msg(__func__, xdr);
3004 return -EIO;
2962} 3005}
2963 3006
2964static int decode_attr_maxlink(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *maxlink) 3007static int decode_attr_maxlink(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *maxlink)
@@ -2970,12 +3013,17 @@ static int decode_attr_maxlink(struct xdr_stream *xdr, uint32_t *bitmap, uint32_
2970 if (unlikely(bitmap[0] & (FATTR4_WORD0_MAXLINK - 1U))) 3013 if (unlikely(bitmap[0] & (FATTR4_WORD0_MAXLINK - 1U)))
2971 return -EIO; 3014 return -EIO;
2972 if (likely(bitmap[0] & FATTR4_WORD0_MAXLINK)) { 3015 if (likely(bitmap[0] & FATTR4_WORD0_MAXLINK)) {
2973 READ_BUF(4); 3016 p = xdr_inline_decode(xdr, 4);
2974 READ32(*maxlink); 3017 if (unlikely(!p))
3018 goto out_overflow;
3019 *maxlink = be32_to_cpup(p);
2975 bitmap[0] &= ~FATTR4_WORD0_MAXLINK; 3020 bitmap[0] &= ~FATTR4_WORD0_MAXLINK;
2976 } 3021 }
2977 dprintk("%s: maxlink=%u\n", __func__, *maxlink); 3022 dprintk("%s: maxlink=%u\n", __func__, *maxlink);
2978 return status; 3023 return status;
3024out_overflow:
3025 print_overflow_msg(__func__, xdr);
3026 return -EIO;
2979} 3027}
2980 3028
2981static int decode_attr_maxname(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *maxname) 3029static int decode_attr_maxname(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *maxname)
@@ -2987,12 +3035,17 @@ static int decode_attr_maxname(struct xdr_stream *xdr, uint32_t *bitmap, uint32_
2987 if (unlikely(bitmap[0] & (FATTR4_WORD0_MAXNAME - 1U))) 3035 if (unlikely(bitmap[0] & (FATTR4_WORD0_MAXNAME - 1U)))
2988 return -EIO; 3036 return -EIO;
2989 if (likely(bitmap[0] & FATTR4_WORD0_MAXNAME)) { 3037 if (likely(bitmap[0] & FATTR4_WORD0_MAXNAME)) {
2990 READ_BUF(4); 3038 p = xdr_inline_decode(xdr, 4);
2991 READ32(*maxname); 3039 if (unlikely(!p))
3040 goto out_overflow;
3041 *maxname = be32_to_cpup(p);
2992 bitmap[0] &= ~FATTR4_WORD0_MAXNAME; 3042 bitmap[0] &= ~FATTR4_WORD0_MAXNAME;
2993 } 3043 }
2994 dprintk("%s: maxname=%u\n", __func__, *maxname); 3044 dprintk("%s: maxname=%u\n", __func__, *maxname);
2995 return status; 3045 return status;
3046out_overflow:
3047 print_overflow_msg(__func__, xdr);
3048 return -EIO;
2996} 3049}
2997 3050
2998static int decode_attr_maxread(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *res) 3051static int decode_attr_maxread(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *res)
@@ -3005,8 +3058,10 @@ static int decode_attr_maxread(struct xdr_stream *xdr, uint32_t *bitmap, uint32_
3005 return -EIO; 3058 return -EIO;
3006 if (likely(bitmap[0] & FATTR4_WORD0_MAXREAD)) { 3059 if (likely(bitmap[0] & FATTR4_WORD0_MAXREAD)) {
3007 uint64_t maxread; 3060 uint64_t maxread;
3008 READ_BUF(8); 3061 p = xdr_inline_decode(xdr, 8);
3009 READ64(maxread); 3062 if (unlikely(!p))
3063 goto out_overflow;
3064 xdr_decode_hyper(p, &maxread);
3010 if (maxread > 0x7FFFFFFF) 3065 if (maxread > 0x7FFFFFFF)
3011 maxread = 0x7FFFFFFF; 3066 maxread = 0x7FFFFFFF;
3012 *res = (uint32_t)maxread; 3067 *res = (uint32_t)maxread;
@@ -3014,6 +3069,9 @@ static int decode_attr_maxread(struct xdr_stream *xdr, uint32_t *bitmap, uint32_
3014 } 3069 }
3015 dprintk("%s: maxread=%lu\n", __func__, (unsigned long)*res); 3070 dprintk("%s: maxread=%lu\n", __func__, (unsigned long)*res);
3016 return status; 3071 return status;
3072out_overflow:
3073 print_overflow_msg(__func__, xdr);
3074 return -EIO;
3017} 3075}
3018 3076
3019static int decode_attr_maxwrite(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *res) 3077static int decode_attr_maxwrite(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *res)
@@ -3026,8 +3084,10 @@ static int decode_attr_maxwrite(struct xdr_stream *xdr, uint32_t *bitmap, uint32
3026 return -EIO; 3084 return -EIO;
3027 if (likely(bitmap[0] & FATTR4_WORD0_MAXWRITE)) { 3085 if (likely(bitmap[0] & FATTR4_WORD0_MAXWRITE)) {
3028 uint64_t maxwrite; 3086 uint64_t maxwrite;
3029 READ_BUF(8); 3087 p = xdr_inline_decode(xdr, 8);
3030 READ64(maxwrite); 3088 if (unlikely(!p))
3089 goto out_overflow;
3090 xdr_decode_hyper(p, &maxwrite);
3031 if (maxwrite > 0x7FFFFFFF) 3091 if (maxwrite > 0x7FFFFFFF)
3032 maxwrite = 0x7FFFFFFF; 3092 maxwrite = 0x7FFFFFFF;
3033 *res = (uint32_t)maxwrite; 3093 *res = (uint32_t)maxwrite;
@@ -3035,6 +3095,9 @@ static int decode_attr_maxwrite(struct xdr_stream *xdr, uint32_t *bitmap, uint32
3035 } 3095 }
3036 dprintk("%s: maxwrite=%lu\n", __func__, (unsigned long)*res); 3096 dprintk("%s: maxwrite=%lu\n", __func__, (unsigned long)*res);
3037 return status; 3097 return status;
3098out_overflow:
3099 print_overflow_msg(__func__, xdr);
3100 return -EIO;
3038} 3101}
3039 3102
3040static int decode_attr_mode(struct xdr_stream *xdr, uint32_t *bitmap, umode_t *mode) 3103static int decode_attr_mode(struct xdr_stream *xdr, uint32_t *bitmap, umode_t *mode)
@@ -3047,14 +3110,19 @@ static int decode_attr_mode(struct xdr_stream *xdr, uint32_t *bitmap, umode_t *m
3047 if (unlikely(bitmap[1] & (FATTR4_WORD1_MODE - 1U))) 3110 if (unlikely(bitmap[1] & (FATTR4_WORD1_MODE - 1U)))
3048 return -EIO; 3111 return -EIO;
3049 if (likely(bitmap[1] & FATTR4_WORD1_MODE)) { 3112 if (likely(bitmap[1] & FATTR4_WORD1_MODE)) {
3050 READ_BUF(4); 3113 p = xdr_inline_decode(xdr, 4);
3051 READ32(tmp); 3114 if (unlikely(!p))
3115 goto out_overflow;
3116 tmp = be32_to_cpup(p);
3052 *mode = tmp & ~S_IFMT; 3117 *mode = tmp & ~S_IFMT;
3053 bitmap[1] &= ~FATTR4_WORD1_MODE; 3118 bitmap[1] &= ~FATTR4_WORD1_MODE;
3054 ret = NFS_ATTR_FATTR_MODE; 3119 ret = NFS_ATTR_FATTR_MODE;
3055 } 3120 }
3056 dprintk("%s: file mode=0%o\n", __func__, (unsigned int)*mode); 3121 dprintk("%s: file mode=0%o\n", __func__, (unsigned int)*mode);
3057 return ret; 3122 return ret;
3123out_overflow:
3124 print_overflow_msg(__func__, xdr);
3125 return -EIO;
3058} 3126}
3059 3127
3060static int decode_attr_nlink(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *nlink) 3128static int decode_attr_nlink(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *nlink)
@@ -3066,13 +3134,18 @@ static int decode_attr_nlink(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t
3066 if (unlikely(bitmap[1] & (FATTR4_WORD1_NUMLINKS - 1U))) 3134 if (unlikely(bitmap[1] & (FATTR4_WORD1_NUMLINKS - 1U)))
3067 return -EIO; 3135 return -EIO;
3068 if (likely(bitmap[1] & FATTR4_WORD1_NUMLINKS)) { 3136 if (likely(bitmap[1] & FATTR4_WORD1_NUMLINKS)) {
3069 READ_BUF(4); 3137 p = xdr_inline_decode(xdr, 4);
3070 READ32(*nlink); 3138 if (unlikely(!p))
3139 goto out_overflow;
3140 *nlink = be32_to_cpup(p);
3071 bitmap[1] &= ~FATTR4_WORD1_NUMLINKS; 3141 bitmap[1] &= ~FATTR4_WORD1_NUMLINKS;
3072 ret = NFS_ATTR_FATTR_NLINK; 3142 ret = NFS_ATTR_FATTR_NLINK;
3073 } 3143 }
3074 dprintk("%s: nlink=%u\n", __func__, (unsigned int)*nlink); 3144 dprintk("%s: nlink=%u\n", __func__, (unsigned int)*nlink);
3075 return ret; 3145 return ret;
3146out_overflow:
3147 print_overflow_msg(__func__, xdr);
3148 return -EIO;
3076} 3149}
3077 3150
3078static int decode_attr_owner(struct xdr_stream *xdr, uint32_t *bitmap, 3151static int decode_attr_owner(struct xdr_stream *xdr, uint32_t *bitmap,
@@ -3086,9 +3159,13 @@ static int decode_attr_owner(struct xdr_stream *xdr, uint32_t *bitmap,
3086 if (unlikely(bitmap[1] & (FATTR4_WORD1_OWNER - 1U))) 3159 if (unlikely(bitmap[1] & (FATTR4_WORD1_OWNER - 1U)))
3087 return -EIO; 3160 return -EIO;
3088 if (likely(bitmap[1] & FATTR4_WORD1_OWNER)) { 3161 if (likely(bitmap[1] & FATTR4_WORD1_OWNER)) {
3089 READ_BUF(4); 3162 p = xdr_inline_decode(xdr, 4);
3090 READ32(len); 3163 if (unlikely(!p))
3091 READ_BUF(len); 3164 goto out_overflow;
3165 len = be32_to_cpup(p);
3166 p = xdr_inline_decode(xdr, len);
3167 if (unlikely(!p))
3168 goto out_overflow;
3092 if (!may_sleep) { 3169 if (!may_sleep) {
3093 /* do nothing */ 3170 /* do nothing */
3094 } else if (len < XDR_MAX_NETOBJ) { 3171 } else if (len < XDR_MAX_NETOBJ) {
@@ -3104,6 +3181,9 @@ static int decode_attr_owner(struct xdr_stream *xdr, uint32_t *bitmap,
3104 } 3181 }
3105 dprintk("%s: uid=%d\n", __func__, (int)*uid); 3182 dprintk("%s: uid=%d\n", __func__, (int)*uid);
3106 return ret; 3183 return ret;
3184out_overflow:
3185 print_overflow_msg(__func__, xdr);
3186 return -EIO;
3107} 3187}
3108 3188
3109static int decode_attr_group(struct xdr_stream *xdr, uint32_t *bitmap, 3189static int decode_attr_group(struct xdr_stream *xdr, uint32_t *bitmap,
@@ -3117,9 +3197,13 @@ static int decode_attr_group(struct xdr_stream *xdr, uint32_t *bitmap,
3117 if (unlikely(bitmap[1] & (FATTR4_WORD1_OWNER_GROUP - 1U))) 3197 if (unlikely(bitmap[1] & (FATTR4_WORD1_OWNER_GROUP - 1U)))
3118 return -EIO; 3198 return -EIO;
3119 if (likely(bitmap[1] & FATTR4_WORD1_OWNER_GROUP)) { 3199 if (likely(bitmap[1] & FATTR4_WORD1_OWNER_GROUP)) {
3120 READ_BUF(4); 3200 p = xdr_inline_decode(xdr, 4);
3121 READ32(len); 3201 if (unlikely(!p))
3122 READ_BUF(len); 3202 goto out_overflow;
3203 len = be32_to_cpup(p);
3204 p = xdr_inline_decode(xdr, len);
3205 if (unlikely(!p))
3206 goto out_overflow;
3123 if (!may_sleep) { 3207 if (!may_sleep) {
3124 /* do nothing */ 3208 /* do nothing */
3125 } else if (len < XDR_MAX_NETOBJ) { 3209 } else if (len < XDR_MAX_NETOBJ) {
@@ -3135,6 +3219,9 @@ static int decode_attr_group(struct xdr_stream *xdr, uint32_t *bitmap,
3135 } 3219 }
3136 dprintk("%s: gid=%d\n", __func__, (int)*gid); 3220 dprintk("%s: gid=%d\n", __func__, (int)*gid);
3137 return ret; 3221 return ret;
3222out_overflow:
3223 print_overflow_msg(__func__, xdr);
3224 return -EIO;
3138} 3225}
3139 3226
3140static int decode_attr_rdev(struct xdr_stream *xdr, uint32_t *bitmap, dev_t *rdev) 3227static int decode_attr_rdev(struct xdr_stream *xdr, uint32_t *bitmap, dev_t *rdev)
@@ -3149,9 +3236,11 @@ static int decode_attr_rdev(struct xdr_stream *xdr, uint32_t *bitmap, dev_t *rde
3149 if (likely(bitmap[1] & FATTR4_WORD1_RAWDEV)) { 3236 if (likely(bitmap[1] & FATTR4_WORD1_RAWDEV)) {
3150 dev_t tmp; 3237 dev_t tmp;
3151 3238
3152 READ_BUF(8); 3239 p = xdr_inline_decode(xdr, 8);
3153 READ32(major); 3240 if (unlikely(!p))
3154 READ32(minor); 3241 goto out_overflow;
3242 major = be32_to_cpup(p++);
3243 minor = be32_to_cpup(p);
3155 tmp = MKDEV(major, minor); 3244 tmp = MKDEV(major, minor);
3156 if (MAJOR(tmp) == major && MINOR(tmp) == minor) 3245 if (MAJOR(tmp) == major && MINOR(tmp) == minor)
3157 *rdev = tmp; 3246 *rdev = tmp;
@@ -3160,6 +3249,9 @@ static int decode_attr_rdev(struct xdr_stream *xdr, uint32_t *bitmap, dev_t *rde
3160 } 3249 }
3161 dprintk("%s: rdev=(0x%x:0x%x)\n", __func__, major, minor); 3250 dprintk("%s: rdev=(0x%x:0x%x)\n", __func__, major, minor);
3162 return ret; 3251 return ret;
3252out_overflow:
3253 print_overflow_msg(__func__, xdr);
3254 return -EIO;
3163} 3255}
3164 3256
3165static int decode_attr_space_avail(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *res) 3257static int decode_attr_space_avail(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *res)
@@ -3171,12 +3263,17 @@ static int decode_attr_space_avail(struct xdr_stream *xdr, uint32_t *bitmap, uin
3171 if (unlikely(bitmap[1] & (FATTR4_WORD1_SPACE_AVAIL - 1U))) 3263 if (unlikely(bitmap[1] & (FATTR4_WORD1_SPACE_AVAIL - 1U)))
3172 return -EIO; 3264 return -EIO;
3173 if (likely(bitmap[1] & FATTR4_WORD1_SPACE_AVAIL)) { 3265 if (likely(bitmap[1] & FATTR4_WORD1_SPACE_AVAIL)) {
3174 READ_BUF(8); 3266 p = xdr_inline_decode(xdr, 8);
3175 READ64(*res); 3267 if (unlikely(!p))
3268 goto out_overflow;
3269 xdr_decode_hyper(p, res);
3176 bitmap[1] &= ~FATTR4_WORD1_SPACE_AVAIL; 3270 bitmap[1] &= ~FATTR4_WORD1_SPACE_AVAIL;
3177 } 3271 }
3178 dprintk("%s: space avail=%Lu\n", __func__, (unsigned long long)*res); 3272 dprintk("%s: space avail=%Lu\n", __func__, (unsigned long long)*res);
3179 return status; 3273 return status;
3274out_overflow:
3275 print_overflow_msg(__func__, xdr);
3276 return -EIO;
3180} 3277}
3181 3278
3182static int decode_attr_space_free(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *res) 3279static int decode_attr_space_free(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *res)
@@ -3188,12 +3285,17 @@ static int decode_attr_space_free(struct xdr_stream *xdr, uint32_t *bitmap, uint
3188 if (unlikely(bitmap[1] & (FATTR4_WORD1_SPACE_FREE - 1U))) 3285 if (unlikely(bitmap[1] & (FATTR4_WORD1_SPACE_FREE - 1U)))
3189 return -EIO; 3286 return -EIO;
3190 if (likely(bitmap[1] & FATTR4_WORD1_SPACE_FREE)) { 3287 if (likely(bitmap[1] & FATTR4_WORD1_SPACE_FREE)) {
3191 READ_BUF(8); 3288 p = xdr_inline_decode(xdr, 8);
3192 READ64(*res); 3289 if (unlikely(!p))
3290 goto out_overflow;
3291 xdr_decode_hyper(p, res);
3193 bitmap[1] &= ~FATTR4_WORD1_SPACE_FREE; 3292 bitmap[1] &= ~FATTR4_WORD1_SPACE_FREE;
3194 } 3293 }
3195 dprintk("%s: space free=%Lu\n", __func__, (unsigned long long)*res); 3294 dprintk("%s: space free=%Lu\n", __func__, (unsigned long long)*res);
3196 return status; 3295 return status;
3296out_overflow:
3297 print_overflow_msg(__func__, xdr);
3298 return -EIO;
3197} 3299}
3198 3300
3199static int decode_attr_space_total(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *res) 3301static int decode_attr_space_total(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *res)
@@ -3205,12 +3307,17 @@ static int decode_attr_space_total(struct xdr_stream *xdr, uint32_t *bitmap, uin
3205 if (unlikely(bitmap[1] & (FATTR4_WORD1_SPACE_TOTAL - 1U))) 3307 if (unlikely(bitmap[1] & (FATTR4_WORD1_SPACE_TOTAL - 1U)))
3206 return -EIO; 3308 return -EIO;
3207 if (likely(bitmap[1] & FATTR4_WORD1_SPACE_TOTAL)) { 3309 if (likely(bitmap[1] & FATTR4_WORD1_SPACE_TOTAL)) {
3208 READ_BUF(8); 3310 p = xdr_inline_decode(xdr, 8);
3209 READ64(*res); 3311 if (unlikely(!p))
3312 goto out_overflow;
3313 xdr_decode_hyper(p, res);
3210 bitmap[1] &= ~FATTR4_WORD1_SPACE_TOTAL; 3314 bitmap[1] &= ~FATTR4_WORD1_SPACE_TOTAL;
3211 } 3315 }
3212 dprintk("%s: space total=%Lu\n", __func__, (unsigned long long)*res); 3316 dprintk("%s: space total=%Lu\n", __func__, (unsigned long long)*res);
3213 return status; 3317 return status;
3318out_overflow:
3319 print_overflow_msg(__func__, xdr);
3320 return -EIO;
3214} 3321}
3215 3322
3216static int decode_attr_space_used(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *used) 3323static int decode_attr_space_used(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *used)
@@ -3222,14 +3329,19 @@ static int decode_attr_space_used(struct xdr_stream *xdr, uint32_t *bitmap, uint
3222 if (unlikely(bitmap[1] & (FATTR4_WORD1_SPACE_USED - 1U))) 3329 if (unlikely(bitmap[1] & (FATTR4_WORD1_SPACE_USED - 1U)))
3223 return -EIO; 3330 return -EIO;
3224 if (likely(bitmap[1] & FATTR4_WORD1_SPACE_USED)) { 3331 if (likely(bitmap[1] & FATTR4_WORD1_SPACE_USED)) {
3225 READ_BUF(8); 3332 p = xdr_inline_decode(xdr, 8);
3226 READ64(*used); 3333 if (unlikely(!p))
3334 goto out_overflow;
3335 xdr_decode_hyper(p, used);
3227 bitmap[1] &= ~FATTR4_WORD1_SPACE_USED; 3336 bitmap[1] &= ~FATTR4_WORD1_SPACE_USED;
3228 ret = NFS_ATTR_FATTR_SPACE_USED; 3337 ret = NFS_ATTR_FATTR_SPACE_USED;
3229 } 3338 }
3230 dprintk("%s: space used=%Lu\n", __func__, 3339 dprintk("%s: space used=%Lu\n", __func__,
3231 (unsigned long long)*used); 3340 (unsigned long long)*used);
3232 return ret; 3341 return ret;
3342out_overflow:
3343 print_overflow_msg(__func__, xdr);
3344 return -EIO;
3233} 3345}
3234 3346
3235static int decode_attr_time(struct xdr_stream *xdr, struct timespec *time) 3347static int decode_attr_time(struct xdr_stream *xdr, struct timespec *time)
@@ -3238,12 +3350,17 @@ static int decode_attr_time(struct xdr_stream *xdr, struct timespec *time)
3238 uint64_t sec; 3350 uint64_t sec;
3239 uint32_t nsec; 3351 uint32_t nsec;
3240 3352
3241 READ_BUF(12); 3353 p = xdr_inline_decode(xdr, 12);
3242 READ64(sec); 3354 if (unlikely(!p))
3243 READ32(nsec); 3355 goto out_overflow;
3356 p = xdr_decode_hyper(p, &sec);
3357 nsec = be32_to_cpup(p);
3244 time->tv_sec = (time_t)sec; 3358 time->tv_sec = (time_t)sec;
3245 time->tv_nsec = (long)nsec; 3359 time->tv_nsec = (long)nsec;
3246 return 0; 3360 return 0;
3361out_overflow:
3362 print_overflow_msg(__func__, xdr);
3363 return -EIO;
3247} 3364}
3248 3365
3249static int decode_attr_time_access(struct xdr_stream *xdr, uint32_t *bitmap, struct timespec *time) 3366static int decode_attr_time_access(struct xdr_stream *xdr, uint32_t *bitmap, struct timespec *time)
@@ -3321,11 +3438,16 @@ static int decode_change_info(struct xdr_stream *xdr, struct nfs4_change_info *c
3321{ 3438{
3322 __be32 *p; 3439 __be32 *p;
3323 3440
3324 READ_BUF(20); 3441 p = xdr_inline_decode(xdr, 20);
3325 READ32(cinfo->atomic); 3442 if (unlikely(!p))
3326 READ64(cinfo->before); 3443 goto out_overflow;
3327 READ64(cinfo->after); 3444 cinfo->atomic = be32_to_cpup(p++);
3445 p = xdr_decode_hyper(p, &cinfo->before);
3446 xdr_decode_hyper(p, &cinfo->after);
3328 return 0; 3447 return 0;
3448out_overflow:
3449 print_overflow_msg(__func__, xdr);
3450 return -EIO;
3329} 3451}
3330 3452
3331static int decode_access(struct xdr_stream *xdr, struct nfs4_accessres *access) 3453static int decode_access(struct xdr_stream *xdr, struct nfs4_accessres *access)
@@ -3337,40 +3459,62 @@ static int decode_access(struct xdr_stream *xdr, struct nfs4_accessres *access)
3337 status = decode_op_hdr(xdr, OP_ACCESS); 3459 status = decode_op_hdr(xdr, OP_ACCESS);
3338 if (status) 3460 if (status)
3339 return status; 3461 return status;
3340 READ_BUF(8); 3462 p = xdr_inline_decode(xdr, 8);
3341 READ32(supp); 3463 if (unlikely(!p))
3342 READ32(acc); 3464 goto out_overflow;
3465 supp = be32_to_cpup(p++);
3466 acc = be32_to_cpup(p);
3343 access->supported = supp; 3467 access->supported = supp;
3344 access->access = acc; 3468 access->access = acc;
3345 return 0; 3469 return 0;
3470out_overflow:
3471 print_overflow_msg(__func__, xdr);
3472 return -EIO;
3346} 3473}
3347 3474
3348static int decode_close(struct xdr_stream *xdr, struct nfs_closeres *res) 3475static int decode_opaque_fixed(struct xdr_stream *xdr, void *buf, size_t len)
3349{ 3476{
3350 __be32 *p; 3477 __be32 *p;
3478
3479 p = xdr_inline_decode(xdr, len);
3480 if (likely(p)) {
3481 memcpy(buf, p, len);
3482 return 0;
3483 }
3484 print_overflow_msg(__func__, xdr);
3485 return -EIO;
3486}
3487
3488static int decode_stateid(struct xdr_stream *xdr, nfs4_stateid *stateid)
3489{
3490 return decode_opaque_fixed(xdr, stateid->data, NFS4_STATEID_SIZE);
3491}
3492
3493static int decode_close(struct xdr_stream *xdr, struct nfs_closeres *res)
3494{
3351 int status; 3495 int status;
3352 3496
3353 status = decode_op_hdr(xdr, OP_CLOSE); 3497 status = decode_op_hdr(xdr, OP_CLOSE);
3354 if (status != -EIO) 3498 if (status != -EIO)
3355 nfs_increment_open_seqid(status, res->seqid); 3499 nfs_increment_open_seqid(status, res->seqid);
3356 if (status) 3500 if (!status)
3357 return status; 3501 status = decode_stateid(xdr, &res->stateid);
3358 READ_BUF(NFS4_STATEID_SIZE); 3502 return status;
3359 COPYMEM(res->stateid.data, NFS4_STATEID_SIZE); 3503}
3360 return 0; 3504
3505static int decode_verifier(struct xdr_stream *xdr, void *verifier)
3506{
3507 return decode_opaque_fixed(xdr, verifier, 8);
3361} 3508}
3362 3509
3363static int decode_commit(struct xdr_stream *xdr, struct nfs_writeres *res) 3510static int decode_commit(struct xdr_stream *xdr, struct nfs_writeres *res)
3364{ 3511{
3365 __be32 *p;
3366 int status; 3512 int status;
3367 3513
3368 status = decode_op_hdr(xdr, OP_COMMIT); 3514 status = decode_op_hdr(xdr, OP_COMMIT);
3369 if (status) 3515 if (!status)
3370 return status; 3516 status = decode_verifier(xdr, res->verf->verifier);
3371 READ_BUF(8); 3517 return status;
3372 COPYMEM(res->verf->verifier, 8);
3373 return 0;
3374} 3518}
3375 3519
3376static int decode_create(struct xdr_stream *xdr, struct nfs4_change_info *cinfo) 3520static int decode_create(struct xdr_stream *xdr, struct nfs4_change_info *cinfo)
@@ -3384,10 +3528,16 @@ static int decode_create(struct xdr_stream *xdr, struct nfs4_change_info *cinfo)
3384 return status; 3528 return status;
3385 if ((status = decode_change_info(xdr, cinfo))) 3529 if ((status = decode_change_info(xdr, cinfo)))
3386 return status; 3530 return status;
3387 READ_BUF(4); 3531 p = xdr_inline_decode(xdr, 4);
3388 READ32(bmlen); 3532 if (unlikely(!p))
3389 READ_BUF(bmlen << 2); 3533 goto out_overflow;
3390 return 0; 3534 bmlen = be32_to_cpup(p);
3535 p = xdr_inline_decode(xdr, bmlen << 2);
3536 if (likely(p))
3537 return 0;
3538out_overflow:
3539 print_overflow_msg(__func__, xdr);
3540 return -EIO;
3391} 3541}
3392 3542
3393static int decode_server_caps(struct xdr_stream *xdr, struct nfs4_server_caps_res *res) 3543static int decode_server_caps(struct xdr_stream *xdr, struct nfs4_server_caps_res *res)
@@ -3642,14 +3792,21 @@ static int decode_getfh(struct xdr_stream *xdr, struct nfs_fh *fh)
3642 if (status) 3792 if (status)
3643 return status; 3793 return status;
3644 3794
3645 READ_BUF(4); 3795 p = xdr_inline_decode(xdr, 4);
3646 READ32(len); 3796 if (unlikely(!p))
3797 goto out_overflow;
3798 len = be32_to_cpup(p);
3647 if (len > NFS4_FHSIZE) 3799 if (len > NFS4_FHSIZE)
3648 return -EIO; 3800 return -EIO;
3649 fh->size = len; 3801 fh->size = len;
3650 READ_BUF(len); 3802 p = xdr_inline_decode(xdr, len);
3651 COPYMEM(fh->data, len); 3803 if (unlikely(!p))
3804 goto out_overflow;
3805 memcpy(fh->data, p, len);
3652 return 0; 3806 return 0;
3807out_overflow:
3808 print_overflow_msg(__func__, xdr);
3809 return -EIO;
3653} 3810}
3654 3811
3655static int decode_link(struct xdr_stream *xdr, struct nfs4_change_info *cinfo) 3812static int decode_link(struct xdr_stream *xdr, struct nfs4_change_info *cinfo)
@@ -3671,10 +3828,12 @@ static int decode_lock_denied (struct xdr_stream *xdr, struct file_lock *fl)
3671 __be32 *p; 3828 __be32 *p;
3672 uint32_t namelen, type; 3829 uint32_t namelen, type;
3673 3830
3674 READ_BUF(32); 3831 p = xdr_inline_decode(xdr, 32);
3675 READ64(offset); 3832 if (unlikely(!p))
3676 READ64(length); 3833 goto out_overflow;
3677 READ32(type); 3834 p = xdr_decode_hyper(p, &offset);
3835 p = xdr_decode_hyper(p, &length);
3836 type = be32_to_cpup(p++);
3678 if (fl != NULL) { 3837 if (fl != NULL) {
3679 fl->fl_start = (loff_t)offset; 3838 fl->fl_start = (loff_t)offset;
3680 fl->fl_end = fl->fl_start + (loff_t)length - 1; 3839 fl->fl_end = fl->fl_start + (loff_t)length - 1;
@@ -3685,23 +3844,27 @@ static int decode_lock_denied (struct xdr_stream *xdr, struct file_lock *fl)
3685 fl->fl_type = F_RDLCK; 3844 fl->fl_type = F_RDLCK;
3686 fl->fl_pid = 0; 3845 fl->fl_pid = 0;
3687 } 3846 }
3688 READ64(clientid); 3847 p = xdr_decode_hyper(p, &clientid);
3689 READ32(namelen); 3848 namelen = be32_to_cpup(p);
3690 READ_BUF(namelen); 3849 p = xdr_inline_decode(xdr, namelen);
3691 return -NFS4ERR_DENIED; 3850 if (likely(p))
3851 return -NFS4ERR_DENIED;
3852out_overflow:
3853 print_overflow_msg(__func__, xdr);
3854 return -EIO;
3692} 3855}
3693 3856
3694static int decode_lock(struct xdr_stream *xdr, struct nfs_lock_res *res) 3857static int decode_lock(struct xdr_stream *xdr, struct nfs_lock_res *res)
3695{ 3858{
3696 __be32 *p;
3697 int status; 3859 int status;
3698 3860
3699 status = decode_op_hdr(xdr, OP_LOCK); 3861 status = decode_op_hdr(xdr, OP_LOCK);
3700 if (status == -EIO) 3862 if (status == -EIO)
3701 goto out; 3863 goto out;
3702 if (status == 0) { 3864 if (status == 0) {
3703 READ_BUF(NFS4_STATEID_SIZE); 3865 status = decode_stateid(xdr, &res->stateid);
3704 COPYMEM(res->stateid.data, NFS4_STATEID_SIZE); 3866 if (unlikely(status))
3867 goto out;
3705 } else if (status == -NFS4ERR_DENIED) 3868 } else if (status == -NFS4ERR_DENIED)
3706 status = decode_lock_denied(xdr, NULL); 3869 status = decode_lock_denied(xdr, NULL);
3707 if (res->open_seqid != NULL) 3870 if (res->open_seqid != NULL)
@@ -3722,16 +3885,13 @@ static int decode_lockt(struct xdr_stream *xdr, struct nfs_lockt_res *res)
3722 3885
3723static int decode_locku(struct xdr_stream *xdr, struct nfs_locku_res *res) 3886static int decode_locku(struct xdr_stream *xdr, struct nfs_locku_res *res)
3724{ 3887{
3725 __be32 *p;
3726 int status; 3888 int status;
3727 3889
3728 status = decode_op_hdr(xdr, OP_LOCKU); 3890 status = decode_op_hdr(xdr, OP_LOCKU);
3729 if (status != -EIO) 3891 if (status != -EIO)
3730 nfs_increment_lock_seqid(status, res->seqid); 3892 nfs_increment_lock_seqid(status, res->seqid);
3731 if (status == 0) { 3893 if (status == 0)
3732 READ_BUF(NFS4_STATEID_SIZE); 3894 status = decode_stateid(xdr, &res->stateid);
3733 COPYMEM(res->stateid.data, NFS4_STATEID_SIZE);
3734 }
3735 return status; 3895 return status;
3736} 3896}
3737 3897
@@ -3746,34 +3906,46 @@ static int decode_space_limit(struct xdr_stream *xdr, u64 *maxsize)
3746 __be32 *p; 3906 __be32 *p;
3747 uint32_t limit_type, nblocks, blocksize; 3907 uint32_t limit_type, nblocks, blocksize;
3748 3908
3749 READ_BUF(12); 3909 p = xdr_inline_decode(xdr, 12);
3750 READ32(limit_type); 3910 if (unlikely(!p))
3911 goto out_overflow;
3912 limit_type = be32_to_cpup(p++);
3751 switch (limit_type) { 3913 switch (limit_type) {
3752 case 1: 3914 case 1:
3753 READ64(*maxsize); 3915 xdr_decode_hyper(p, maxsize);
3754 break; 3916 break;
3755 case 2: 3917 case 2:
3756 READ32(nblocks); 3918 nblocks = be32_to_cpup(p++);
3757 READ32(blocksize); 3919 blocksize = be32_to_cpup(p);
3758 *maxsize = (uint64_t)nblocks * (uint64_t)blocksize; 3920 *maxsize = (uint64_t)nblocks * (uint64_t)blocksize;
3759 } 3921 }
3760 return 0; 3922 return 0;
3923out_overflow:
3924 print_overflow_msg(__func__, xdr);
3925 return -EIO;
3761} 3926}
3762 3927
3763static int decode_delegation(struct xdr_stream *xdr, struct nfs_openres *res) 3928static int decode_delegation(struct xdr_stream *xdr, struct nfs_openres *res)
3764{ 3929{
3765 __be32 *p; 3930 __be32 *p;
3766 uint32_t delegation_type; 3931 uint32_t delegation_type;
3932 int status;
3767 3933
3768 READ_BUF(4); 3934 p = xdr_inline_decode(xdr, 4);
3769 READ32(delegation_type); 3935 if (unlikely(!p))
3936 goto out_overflow;
3937 delegation_type = be32_to_cpup(p);
3770 if (delegation_type == NFS4_OPEN_DELEGATE_NONE) { 3938 if (delegation_type == NFS4_OPEN_DELEGATE_NONE) {
3771 res->delegation_type = 0; 3939 res->delegation_type = 0;
3772 return 0; 3940 return 0;
3773 } 3941 }
3774 READ_BUF(NFS4_STATEID_SIZE+4); 3942 status = decode_stateid(xdr, &res->delegation);
3775 COPYMEM(res->delegation.data, NFS4_STATEID_SIZE); 3943 if (unlikely(status))
3776 READ32(res->do_recall); 3944 return status;
3945 p = xdr_inline_decode(xdr, 4);
3946 if (unlikely(!p))
3947 goto out_overflow;
3948 res->do_recall = be32_to_cpup(p);
3777 3949
3778 switch (delegation_type) { 3950 switch (delegation_type) {
3779 case NFS4_OPEN_DELEGATE_READ: 3951 case NFS4_OPEN_DELEGATE_READ:
@@ -3785,6 +3957,9 @@ static int decode_delegation(struct xdr_stream *xdr, struct nfs_openres *res)
3785 return -EIO; 3957 return -EIO;
3786 } 3958 }
3787 return decode_ace(xdr, NULL, res->server->nfs_client); 3959 return decode_ace(xdr, NULL, res->server->nfs_client);
3960out_overflow:
3961 print_overflow_msg(__func__, xdr);
3962 return -EIO;
3788} 3963}
3789 3964
3790static int decode_open(struct xdr_stream *xdr, struct nfs_openres *res) 3965static int decode_open(struct xdr_stream *xdr, struct nfs_openres *res)
@@ -3796,23 +3971,27 @@ static int decode_open(struct xdr_stream *xdr, struct nfs_openres *res)
3796 status = decode_op_hdr(xdr, OP_OPEN); 3971 status = decode_op_hdr(xdr, OP_OPEN);
3797 if (status != -EIO) 3972 if (status != -EIO)
3798 nfs_increment_open_seqid(status, res->seqid); 3973 nfs_increment_open_seqid(status, res->seqid);
3799 if (status) 3974 if (!status)
3975 status = decode_stateid(xdr, &res->stateid);
3976 if (unlikely(status))
3800 return status; 3977 return status;
3801 READ_BUF(NFS4_STATEID_SIZE);
3802 COPYMEM(res->stateid.data, NFS4_STATEID_SIZE);
3803 3978
3804 decode_change_info(xdr, &res->cinfo); 3979 decode_change_info(xdr, &res->cinfo);
3805 3980
3806 READ_BUF(8); 3981 p = xdr_inline_decode(xdr, 8);
3807 READ32(res->rflags); 3982 if (unlikely(!p))
3808 READ32(bmlen); 3983 goto out_overflow;
3984 res->rflags = be32_to_cpup(p++);
3985 bmlen = be32_to_cpup(p);
3809 if (bmlen > 10) 3986 if (bmlen > 10)
3810 goto xdr_error; 3987 goto xdr_error;
3811 3988
3812 READ_BUF(bmlen << 2); 3989 p = xdr_inline_decode(xdr, bmlen << 2);
3990 if (unlikely(!p))
3991 goto out_overflow;
3813 savewords = min_t(uint32_t, bmlen, NFS4_BITMAP_SIZE); 3992 savewords = min_t(uint32_t, bmlen, NFS4_BITMAP_SIZE);
3814 for (i = 0; i < savewords; ++i) 3993 for (i = 0; i < savewords; ++i)
3815 READ32(res->attrset[i]); 3994 res->attrset[i] = be32_to_cpup(p++);
3816 for (; i < NFS4_BITMAP_SIZE; i++) 3995 for (; i < NFS4_BITMAP_SIZE; i++)
3817 res->attrset[i] = 0; 3996 res->attrset[i] = 0;
3818 3997
@@ -3820,36 +3999,33 @@ static int decode_open(struct xdr_stream *xdr, struct nfs_openres *res)
3820xdr_error: 3999xdr_error:
3821 dprintk("%s: Bitmap too large! Length = %u\n", __func__, bmlen); 4000 dprintk("%s: Bitmap too large! Length = %u\n", __func__, bmlen);
3822 return -EIO; 4001 return -EIO;
4002out_overflow:
4003 print_overflow_msg(__func__, xdr);
4004 return -EIO;
3823} 4005}
3824 4006
3825static int decode_open_confirm(struct xdr_stream *xdr, struct nfs_open_confirmres *res) 4007static int decode_open_confirm(struct xdr_stream *xdr, struct nfs_open_confirmres *res)
3826{ 4008{
3827 __be32 *p;
3828 int status; 4009 int status;
3829 4010
3830 status = decode_op_hdr(xdr, OP_OPEN_CONFIRM); 4011 status = decode_op_hdr(xdr, OP_OPEN_CONFIRM);
3831 if (status != -EIO) 4012 if (status != -EIO)
3832 nfs_increment_open_seqid(status, res->seqid); 4013 nfs_increment_open_seqid(status, res->seqid);
3833 if (status) 4014 if (!status)
3834 return status; 4015 status = decode_stateid(xdr, &res->stateid);
3835 READ_BUF(NFS4_STATEID_SIZE); 4016 return status;
3836 COPYMEM(res->stateid.data, NFS4_STATEID_SIZE);
3837 return 0;
3838} 4017}
3839 4018
3840static int decode_open_downgrade(struct xdr_stream *xdr, struct nfs_closeres *res) 4019static int decode_open_downgrade(struct xdr_stream *xdr, struct nfs_closeres *res)
3841{ 4020{
3842 __be32 *p;
3843 int status; 4021 int status;
3844 4022
3845 status = decode_op_hdr(xdr, OP_OPEN_DOWNGRADE); 4023 status = decode_op_hdr(xdr, OP_OPEN_DOWNGRADE);
3846 if (status != -EIO) 4024 if (status != -EIO)
3847 nfs_increment_open_seqid(status, res->seqid); 4025 nfs_increment_open_seqid(status, res->seqid);
3848 if (status) 4026 if (!status)
3849 return status; 4027 status = decode_stateid(xdr, &res->stateid);
3850 READ_BUF(NFS4_STATEID_SIZE); 4028 return status;
3851 COPYMEM(res->stateid.data, NFS4_STATEID_SIZE);
3852 return 0;
3853} 4029}
3854 4030
3855static int decode_putfh(struct xdr_stream *xdr) 4031static int decode_putfh(struct xdr_stream *xdr)
@@ -3872,9 +4048,11 @@ static int decode_read(struct xdr_stream *xdr, struct rpc_rqst *req, struct nfs_
3872 status = decode_op_hdr(xdr, OP_READ); 4048 status = decode_op_hdr(xdr, OP_READ);
3873 if (status) 4049 if (status)
3874 return status; 4050 return status;
3875 READ_BUF(8); 4051 p = xdr_inline_decode(xdr, 8);
3876 READ32(eof); 4052 if (unlikely(!p))
3877 READ32(count); 4053 goto out_overflow;
4054 eof = be32_to_cpup(p++);
4055 count = be32_to_cpup(p);
3878 hdrlen = (u8 *) p - (u8 *) iov->iov_base; 4056 hdrlen = (u8 *) p - (u8 *) iov->iov_base;
3879 recvd = req->rq_rcv_buf.len - hdrlen; 4057 recvd = req->rq_rcv_buf.len - hdrlen;
3880 if (count > recvd) { 4058 if (count > recvd) {
@@ -3887,6 +4065,9 @@ static int decode_read(struct xdr_stream *xdr, struct rpc_rqst *req, struct nfs_
3887 res->eof = eof; 4065 res->eof = eof;
3888 res->count = count; 4066 res->count = count;
3889 return 0; 4067 return 0;
4068out_overflow:
4069 print_overflow_msg(__func__, xdr);
4070 return -EIO;
3890} 4071}
3891 4072
3892static int decode_readdir(struct xdr_stream *xdr, struct rpc_rqst *req, struct nfs4_readdir_res *readdir) 4073static int decode_readdir(struct xdr_stream *xdr, struct rpc_rqst *req, struct nfs4_readdir_res *readdir)
@@ -3901,17 +4082,17 @@ static int decode_readdir(struct xdr_stream *xdr, struct rpc_rqst *req, struct n
3901 int status; 4082 int status;
3902 4083
3903 status = decode_op_hdr(xdr, OP_READDIR); 4084 status = decode_op_hdr(xdr, OP_READDIR);
3904 if (status) 4085 if (!status)
4086 status = decode_verifier(xdr, readdir->verifier.data);
4087 if (unlikely(status))
3905 return status; 4088 return status;
3906 READ_BUF(8);
3907 COPYMEM(readdir->verifier.data, 8);
3908 dprintk("%s: verifier = %08x:%08x\n", 4089 dprintk("%s: verifier = %08x:%08x\n",
3909 __func__, 4090 __func__,
3910 ((u32 *)readdir->verifier.data)[0], 4091 ((u32 *)readdir->verifier.data)[0],
3911 ((u32 *)readdir->verifier.data)[1]); 4092 ((u32 *)readdir->verifier.data)[1]);
3912 4093
3913 4094
3914 hdrlen = (char *) p - (char *) iov->iov_base; 4095 hdrlen = (char *) xdr->p - (char *) iov->iov_base;
3915 recvd = rcvbuf->len - hdrlen; 4096 recvd = rcvbuf->len - hdrlen;
3916 if (pglen > recvd) 4097 if (pglen > recvd)
3917 pglen = recvd; 4098 pglen = recvd;
@@ -3999,8 +4180,10 @@ static int decode_readlink(struct xdr_stream *xdr, struct rpc_rqst *req)
3999 return status; 4180 return status;
4000 4181
4001 /* Convert length of symlink */ 4182 /* Convert length of symlink */
4002 READ_BUF(4); 4183 p = xdr_inline_decode(xdr, 4);
4003 READ32(len); 4184 if (unlikely(!p))
4185 goto out_overflow;
4186 len = be32_to_cpup(p);
4004 if (len >= rcvbuf->page_len || len <= 0) { 4187 if (len >= rcvbuf->page_len || len <= 0) {
4005 dprintk("nfs: server returned giant symlink!\n"); 4188 dprintk("nfs: server returned giant symlink!\n");
4006 return -ENAMETOOLONG; 4189 return -ENAMETOOLONG;
@@ -4024,6 +4207,9 @@ static int decode_readlink(struct xdr_stream *xdr, struct rpc_rqst *req)
4024 kaddr[len+rcvbuf->page_base] = '\0'; 4207 kaddr[len+rcvbuf->page_base] = '\0';
4025 kunmap_atomic(kaddr, KM_USER0); 4208 kunmap_atomic(kaddr, KM_USER0);
4026 return 0; 4209 return 0;
4210out_overflow:
4211 print_overflow_msg(__func__, xdr);
4212 return -EIO;
4027} 4213}
4028 4214
4029static int decode_remove(struct xdr_stream *xdr, struct nfs4_change_info *cinfo) 4215static int decode_remove(struct xdr_stream *xdr, struct nfs4_change_info *cinfo)
@@ -4121,10 +4307,16 @@ static int decode_setattr(struct xdr_stream *xdr)
4121 status = decode_op_hdr(xdr, OP_SETATTR); 4307 status = decode_op_hdr(xdr, OP_SETATTR);
4122 if (status) 4308 if (status)
4123 return status; 4309 return status;
4124 READ_BUF(4); 4310 p = xdr_inline_decode(xdr, 4);
4125 READ32(bmlen); 4311 if (unlikely(!p))
4126 READ_BUF(bmlen << 2); 4312 goto out_overflow;
4127 return 0; 4313 bmlen = be32_to_cpup(p);
4314 p = xdr_inline_decode(xdr, bmlen << 2);
4315 if (likely(p))
4316 return 0;
4317out_overflow:
4318 print_overflow_msg(__func__, xdr);
4319 return -EIO;
4128} 4320}
4129 4321
4130static int decode_setclientid(struct xdr_stream *xdr, struct nfs_client *clp) 4322static int decode_setclientid(struct xdr_stream *xdr, struct nfs_client *clp)
@@ -4133,35 +4325,50 @@ static int decode_setclientid(struct xdr_stream *xdr, struct nfs_client *clp)
4133 uint32_t opnum; 4325 uint32_t opnum;
4134 int32_t nfserr; 4326 int32_t nfserr;
4135 4327
4136 READ_BUF(8); 4328 p = xdr_inline_decode(xdr, 8);
4137 READ32(opnum); 4329 if (unlikely(!p))
4330 goto out_overflow;
4331 opnum = be32_to_cpup(p++);
4138 if (opnum != OP_SETCLIENTID) { 4332 if (opnum != OP_SETCLIENTID) {
4139 dprintk("nfs: decode_setclientid: Server returned operation" 4333 dprintk("nfs: decode_setclientid: Server returned operation"
4140 " %d\n", opnum); 4334 " %d\n", opnum);
4141 return -EIO; 4335 return -EIO;
4142 } 4336 }
4143 READ32(nfserr); 4337 nfserr = be32_to_cpup(p);
4144 if (nfserr == NFS_OK) { 4338 if (nfserr == NFS_OK) {
4145 READ_BUF(8 + NFS4_VERIFIER_SIZE); 4339 p = xdr_inline_decode(xdr, 8 + NFS4_VERIFIER_SIZE);
4146 READ64(clp->cl_clientid); 4340 if (unlikely(!p))
4147 COPYMEM(clp->cl_confirm.data, NFS4_VERIFIER_SIZE); 4341 goto out_overflow;
4342 p = xdr_decode_hyper(p, &clp->cl_clientid);
4343 memcpy(clp->cl_confirm.data, p, NFS4_VERIFIER_SIZE);
4148 } else if (nfserr == NFSERR_CLID_INUSE) { 4344 } else if (nfserr == NFSERR_CLID_INUSE) {
4149 uint32_t len; 4345 uint32_t len;
4150 4346
4151 /* skip netid string */ 4347 /* skip netid string */
4152 READ_BUF(4); 4348 p = xdr_inline_decode(xdr, 4);
4153 READ32(len); 4349 if (unlikely(!p))
4154 READ_BUF(len); 4350 goto out_overflow;
4351 len = be32_to_cpup(p);
4352 p = xdr_inline_decode(xdr, len);
4353 if (unlikely(!p))
4354 goto out_overflow;
4155 4355
4156 /* skip uaddr string */ 4356 /* skip uaddr string */
4157 READ_BUF(4); 4357 p = xdr_inline_decode(xdr, 4);
4158 READ32(len); 4358 if (unlikely(!p))
4159 READ_BUF(len); 4359 goto out_overflow;
4360 len = be32_to_cpup(p);
4361 p = xdr_inline_decode(xdr, len);
4362 if (unlikely(!p))
4363 goto out_overflow;
4160 return -NFSERR_CLID_INUSE; 4364 return -NFSERR_CLID_INUSE;
4161 } else 4365 } else
4162 return nfs4_stat_to_errno(nfserr); 4366 return nfs4_stat_to_errno(nfserr);
4163 4367
4164 return 0; 4368 return 0;
4369out_overflow:
4370 print_overflow_msg(__func__, xdr);
4371 return -EIO;
4165} 4372}
4166 4373
4167static int decode_setclientid_confirm(struct xdr_stream *xdr) 4374static int decode_setclientid_confirm(struct xdr_stream *xdr)
@@ -4178,11 +4385,16 @@ static int decode_write(struct xdr_stream *xdr, struct nfs_writeres *res)
4178 if (status) 4385 if (status)
4179 return status; 4386 return status;
4180 4387
4181 READ_BUF(16); 4388 p = xdr_inline_decode(xdr, 16);
4182 READ32(res->count); 4389 if (unlikely(!p))
4183 READ32(res->verf->committed); 4390 goto out_overflow;
4184 COPYMEM(res->verf->verifier, 8); 4391 res->count = be32_to_cpup(p++);
4392 res->verf->committed = be32_to_cpup(p++);
4393 memcpy(res->verf->verifier, p, 8);
4185 return 0; 4394 return 0;
4395out_overflow:
4396 print_overflow_msg(__func__, xdr);
4397 return -EIO;
4186} 4398}
4187 4399
4188static int decode_delegreturn(struct xdr_stream *xdr) 4400static int decode_delegreturn(struct xdr_stream *xdr)
@@ -4196,6 +4408,7 @@ static int decode_exchange_id(struct xdr_stream *xdr,
4196{ 4408{
4197 __be32 *p; 4409 __be32 *p;
4198 uint32_t dummy; 4410 uint32_t dummy;
4411 char *dummy_str;
4199 int status; 4412 int status;
4200 struct nfs_client *clp = res->client; 4413 struct nfs_client *clp = res->client;
4201 4414
@@ -4203,36 +4416,45 @@ static int decode_exchange_id(struct xdr_stream *xdr,
4203 if (status) 4416 if (status)
4204 return status; 4417 return status;
4205 4418
4206 READ_BUF(8); 4419 p = xdr_inline_decode(xdr, 8);
4207 READ64(clp->cl_ex_clid); 4420 if (unlikely(!p))
4208 READ_BUF(12); 4421 goto out_overflow;
4209 READ32(clp->cl_seqid); 4422 xdr_decode_hyper(p, &clp->cl_ex_clid);
4210 READ32(clp->cl_exchange_flags); 4423 p = xdr_inline_decode(xdr, 12);
4424 if (unlikely(!p))
4425 goto out_overflow;
4426 clp->cl_seqid = be32_to_cpup(p++);
4427 clp->cl_exchange_flags = be32_to_cpup(p++);
4211 4428
4212 /* We ask for SP4_NONE */ 4429 /* We ask for SP4_NONE */
4213 READ32(dummy); 4430 dummy = be32_to_cpup(p);
4214 if (dummy != SP4_NONE) 4431 if (dummy != SP4_NONE)
4215 return -EIO; 4432 return -EIO;
4216 4433
4217 /* Throw away minor_id */ 4434 /* Throw away minor_id */
4218 READ_BUF(8); 4435 p = xdr_inline_decode(xdr, 8);
4436 if (unlikely(!p))
4437 goto out_overflow;
4219 4438
4220 /* Throw away Major id */ 4439 /* Throw away Major id */
4221 READ_BUF(4); 4440 status = decode_opaque_inline(xdr, &dummy, &dummy_str);
4222 READ32(dummy); 4441 if (unlikely(status))
4223 READ_BUF(dummy); 4442 return status;
4224 4443
4225 /* Throw away server_scope */ 4444 /* Throw away server_scope */
4226 READ_BUF(4); 4445 status = decode_opaque_inline(xdr, &dummy, &dummy_str);
4227 READ32(dummy); 4446 if (unlikely(status))
4228 READ_BUF(dummy); 4447 return status;
4229 4448
4230 /* Throw away Implementation id array */ 4449 /* Throw away Implementation id array */
4231 READ_BUF(4); 4450 status = decode_opaque_inline(xdr, &dummy, &dummy_str);
4232 READ32(dummy); 4451 if (unlikely(status))
4233 READ_BUF(dummy); 4452 return status;
4234 4453
4235 return 0; 4454 return 0;
4455out_overflow:
4456 print_overflow_msg(__func__, xdr);
4457 return -EIO;
4236} 4458}
4237 4459
4238static int decode_chan_attrs(struct xdr_stream *xdr, 4460static int decode_chan_attrs(struct xdr_stream *xdr,
@@ -4241,22 +4463,35 @@ static int decode_chan_attrs(struct xdr_stream *xdr,
4241 __be32 *p; 4463 __be32 *p;
4242 u32 nr_attrs; 4464 u32 nr_attrs;
4243 4465
4244 READ_BUF(28); 4466 p = xdr_inline_decode(xdr, 28);
4245 READ32(attrs->headerpadsz); 4467 if (unlikely(!p))
4246 READ32(attrs->max_rqst_sz); 4468 goto out_overflow;
4247 READ32(attrs->max_resp_sz); 4469 attrs->headerpadsz = be32_to_cpup(p++);
4248 READ32(attrs->max_resp_sz_cached); 4470 attrs->max_rqst_sz = be32_to_cpup(p++);
4249 READ32(attrs->max_ops); 4471 attrs->max_resp_sz = be32_to_cpup(p++);
4250 READ32(attrs->max_reqs); 4472 attrs->max_resp_sz_cached = be32_to_cpup(p++);
4251 READ32(nr_attrs); 4473 attrs->max_ops = be32_to_cpup(p++);
4474 attrs->max_reqs = be32_to_cpup(p++);
4475 nr_attrs = be32_to_cpup(p);
4252 if (unlikely(nr_attrs > 1)) { 4476 if (unlikely(nr_attrs > 1)) {
4253 printk(KERN_WARNING "%s: Invalid rdma channel attrs count %u\n", 4477 printk(KERN_WARNING "%s: Invalid rdma channel attrs count %u\n",
4254 __func__, nr_attrs); 4478 __func__, nr_attrs);
4255 return -EINVAL; 4479 return -EINVAL;
4256 } 4480 }
4257 if (nr_attrs == 1) 4481 if (nr_attrs == 1) {
4258 READ_BUF(4); /* skip rdma_attrs */ 4482 p = xdr_inline_decode(xdr, 4); /* skip rdma_attrs */
4483 if (unlikely(!p))
4484 goto out_overflow;
4485 }
4259 return 0; 4486 return 0;
4487out_overflow:
4488 print_overflow_msg(__func__, xdr);
4489 return -EIO;
4490}
4491
4492static int decode_sessionid(struct xdr_stream *xdr, struct nfs4_sessionid *sid)
4493{
4494 return decode_opaque_fixed(xdr, sid->data, NFS4_MAX_SESSIONID_LEN);
4260} 4495}
4261 4496
4262static int decode_create_session(struct xdr_stream *xdr, 4497static int decode_create_session(struct xdr_stream *xdr,
@@ -4268,24 +4503,26 @@ static int decode_create_session(struct xdr_stream *xdr,
4268 struct nfs4_session *session = clp->cl_session; 4503 struct nfs4_session *session = clp->cl_session;
4269 4504
4270 status = decode_op_hdr(xdr, OP_CREATE_SESSION); 4505 status = decode_op_hdr(xdr, OP_CREATE_SESSION);
4271 4506 if (!status)
4272 if (status) 4507 status = decode_sessionid(xdr, &session->sess_id);
4508 if (unlikely(status))
4273 return status; 4509 return status;
4274 4510
4275 /* sessionid */
4276 READ_BUF(NFS4_MAX_SESSIONID_LEN);
4277 COPYMEM(&session->sess_id, NFS4_MAX_SESSIONID_LEN);
4278
4279 /* seqid, flags */ 4511 /* seqid, flags */
4280 READ_BUF(8); 4512 p = xdr_inline_decode(xdr, 8);
4281 READ32(clp->cl_seqid); 4513 if (unlikely(!p))
4282 READ32(session->flags); 4514 goto out_overflow;
4515 clp->cl_seqid = be32_to_cpup(p++);
4516 session->flags = be32_to_cpup(p);
4283 4517
4284 /* Channel attributes */ 4518 /* Channel attributes */
4285 status = decode_chan_attrs(xdr, &session->fc_attrs); 4519 status = decode_chan_attrs(xdr, &session->fc_attrs);
4286 if (!status) 4520 if (!status)
4287 status = decode_chan_attrs(xdr, &session->bc_attrs); 4521 status = decode_chan_attrs(xdr, &session->bc_attrs);
4288 return status; 4522 return status;
4523out_overflow:
4524 print_overflow_msg(__func__, xdr);
4525 return -EIO;
4289} 4526}
4290 4527
4291static int decode_destroy_session(struct xdr_stream *xdr, void *dummy) 4528static int decode_destroy_session(struct xdr_stream *xdr, void *dummy)
@@ -4309,7 +4546,9 @@ static int decode_sequence(struct xdr_stream *xdr,
4309 return 0; 4546 return 0;
4310 4547
4311 status = decode_op_hdr(xdr, OP_SEQUENCE); 4548 status = decode_op_hdr(xdr, OP_SEQUENCE);
4312 if (status) 4549 if (!status)
4550 status = decode_sessionid(xdr, &id);
4551 if (unlikely(status))
4313 goto out_err; 4552 goto out_err;
4314 4553
4315 /* 4554 /*
@@ -4318,36 +4557,43 @@ static int decode_sequence(struct xdr_stream *xdr,
4318 */ 4557 */
4319 status = -ESERVERFAULT; 4558 status = -ESERVERFAULT;
4320 4559
4321 slot = &res->sr_session->fc_slot_table.slots[res->sr_slotid];
4322 READ_BUF(NFS4_MAX_SESSIONID_LEN + 20);
4323 COPYMEM(id.data, NFS4_MAX_SESSIONID_LEN);
4324 if (memcmp(id.data, res->sr_session->sess_id.data, 4560 if (memcmp(id.data, res->sr_session->sess_id.data,
4325 NFS4_MAX_SESSIONID_LEN)) { 4561 NFS4_MAX_SESSIONID_LEN)) {
4326 dprintk("%s Invalid session id\n", __func__); 4562 dprintk("%s Invalid session id\n", __func__);
4327 goto out_err; 4563 goto out_err;
4328 } 4564 }
4565
4566 p = xdr_inline_decode(xdr, 20);
4567 if (unlikely(!p))
4568 goto out_overflow;
4569
4329 /* seqid */ 4570 /* seqid */
4330 READ32(dummy); 4571 slot = &res->sr_session->fc_slot_table.slots[res->sr_slotid];
4572 dummy = be32_to_cpup(p++);
4331 if (dummy != slot->seq_nr) { 4573 if (dummy != slot->seq_nr) {
4332 dprintk("%s Invalid sequence number\n", __func__); 4574 dprintk("%s Invalid sequence number\n", __func__);
4333 goto out_err; 4575 goto out_err;
4334 } 4576 }
4335 /* slot id */ 4577 /* slot id */
4336 READ32(dummy); 4578 dummy = be32_to_cpup(p++);
4337 if (dummy != res->sr_slotid) { 4579 if (dummy != res->sr_slotid) {
4338 dprintk("%s Invalid slot id\n", __func__); 4580 dprintk("%s Invalid slot id\n", __func__);
4339 goto out_err; 4581 goto out_err;
4340 } 4582 }
4341 /* highest slot id - currently not processed */ 4583 /* highest slot id - currently not processed */
4342 READ32(dummy); 4584 dummy = be32_to_cpup(p++);
4343 /* target highest slot id - currently not processed */ 4585 /* target highest slot id - currently not processed */
4344 READ32(dummy); 4586 dummy = be32_to_cpup(p++);
4345 /* result flags - currently not processed */ 4587 /* result flags - currently not processed */
4346 READ32(dummy); 4588 dummy = be32_to_cpup(p);
4347 status = 0; 4589 status = 0;
4348out_err: 4590out_err:
4349 res->sr_status = status; 4591 res->sr_status = status;
4350 return status; 4592 return status;
4593out_overflow:
4594 print_overflow_msg(__func__, xdr);
4595 status = -EIO;
4596 goto out_err;
4351#else /* CONFIG_NFS_V4_1 */ 4597#else /* CONFIG_NFS_V4_1 */
4352 return 0; 4598 return 0;
4353#endif /* CONFIG_NFS_V4_1 */ 4599#endif /* CONFIG_NFS_V4_1 */
generated by cgit v1.2.2 (git 2.25.0) at 2024-12-21 21:40:50 -0500