Linux-2.6.12-rc2v2.6.12-rc2

Initial git repository build. I'm not bothering with the full history,
even though we have it. We can create a separate "historical" git
archive of that later if we want to, and in the meantime it's about
3.2GB when imported into git - space that would just make the early
git days unnecessarily complicated, when we don't have a lot of good
infrastructure for it.

Let it rip!

1 files changed, 605 insertions, 0 deletions

diff --git a/net/compat.c b/net/compat.c
new file mode 100644
index 000000000000..be5d936dc423
--- /dev/null
+++ b/net/compat.c
@@ -0,0 +1,605 @@
+/* 
+ * 32bit Socket syscall emulation. Based on arch/sparc64/kernel/sys_sparc32.c.
+ *
+ * Copyright (C) 2000           VA Linux Co
+ * Copyright (C) 2000           Don Dugger <n0ano@valinux.com>
+ * Copyright (C) 1999           Arun Sharma <arun.sharma@intel.com>
+ * Copyright (C) 1997,1998      Jakub Jelinek (jj@sunsite.mff.cuni.cz)
+ * Copyright (C) 1997           David S. Miller (davem@caip.rutgers.edu)
+ * Copyright (C) 2000           Hewlett-Packard Co.
+ * Copyright (C) 2000           David Mosberger-Tang <davidm@hpl.hp.com>
+ * Copyright (C) 2000,2001      Andi Kleen, SuSE Labs 
+ */
+
+#include <linux/kernel.h>
+#include <linux/fs.h>
+#include <linux/sched.h>
+#include <linux/types.h>
+#include <linux/file.h>
+#include <linux/icmpv6.h>
+#include <linux/socket.h>
+#include <linux/syscalls.h>
+#include <linux/filter.h>
+#include <linux/compat.h>
+#include <linux/netfilter_ipv4/ip_tables.h>
+#include <linux/security.h>
+
+#include <net/scm.h>
+#include <net/sock.h>
+#include <asm/uaccess.h>
+#include <net/compat.h>
+
+static inline int iov_from_user_compat_to_kern(struct iovec *kiov,
+                                          struct compat_iovec __user *uiov32,
+                                          int niov)
+{
+        int tot_len = 0;
+
+        while(niov > 0) {
+                compat_uptr_t buf;
+                compat_size_t len;
+
+                if(get_user(len, &uiov32->iov_len) ||
+                   get_user(buf, &uiov32->iov_base)) {
+                        tot_len = -EFAULT;
+                        break;
+                }
+                tot_len += len;
+                kiov->iov_base = compat_ptr(buf);
+                kiov->iov_len = (__kernel_size_t) len;
+                uiov32++;
+                kiov++;
+                niov--;
+        }
+        return tot_len;
+}
+
+int get_compat_msghdr(struct msghdr *kmsg, struct compat_msghdr __user *umsg)
+{
+        compat_uptr_t tmp1, tmp2, tmp3;
+
+        if (!access_ok(VERIFY_READ, umsg, sizeof(*umsg)) ||
+            __get_user(tmp1, &umsg->msg_name) ||
+            __get_user(kmsg->msg_namelen, &umsg->msg_namelen) ||
+            __get_user(tmp2, &umsg->msg_iov) ||
+            __get_user(kmsg->msg_iovlen, &umsg->msg_iovlen) ||
+            __get_user(tmp3, &umsg->msg_control) ||
+            __get_user(kmsg->msg_controllen, &umsg->msg_controllen) ||
+            __get_user(kmsg->msg_flags, &umsg->msg_flags))
+                return -EFAULT;
+        kmsg->msg_name = compat_ptr(tmp1);
+        kmsg->msg_iov = compat_ptr(tmp2);
+        kmsg->msg_control = compat_ptr(tmp3);
+        return 0;
+}
+
+/* I've named the args so it is easy to tell whose space the pointers are in. */
+int verify_compat_iovec(struct msghdr *kern_msg, struct iovec *kern_iov,
+                   char *kern_address, int mode)
+{
+        int tot_len;
+
+        if(kern_msg->msg_namelen) {
+                if(mode==VERIFY_READ) {
+                        int err = move_addr_to_kernel(kern_msg->msg_name,
+                                                      kern_msg->msg_namelen,
+                                                      kern_address);
+                        if(err < 0)
+                                return err;
+                }
+                kern_msg->msg_name = kern_address;
+        } else
+                kern_msg->msg_name = NULL;
+
+        if(kern_msg->msg_iovlen > UIO_FASTIOV) {
+                kern_iov = kmalloc(kern_msg->msg_iovlen * sizeof(struct iovec),
+                                   GFP_KERNEL);
+                if(!kern_iov)
+                        return -ENOMEM;
+        }
+
+        tot_len = iov_from_user_compat_to_kern(kern_iov,
+                                          (struct compat_iovec __user *)kern_msg->msg_iov,
+                                          kern_msg->msg_iovlen);
+        if(tot_len >= 0)
+                kern_msg->msg_iov = kern_iov;
+        else if(kern_msg->msg_iovlen > UIO_FASTIOV)
+                kfree(kern_iov);
+
+        return tot_len;
+}
+
+/* Bleech... */
+#define CMSG_COMPAT_ALIGN(len)  ALIGN((len), sizeof(s32))
+
+#define CMSG_COMPAT_DATA(cmsg)                          \
+        ((void __user *)((char __user *)(cmsg) + CMSG_COMPAT_ALIGN(sizeof(struct compat_cmsghdr))))
+#define CMSG_COMPAT_SPACE(len)                          \
+        (CMSG_COMPAT_ALIGN(sizeof(struct compat_cmsghdr)) + CMSG_COMPAT_ALIGN(len))
+#define CMSG_COMPAT_LEN(len)                            \
+        (CMSG_COMPAT_ALIGN(sizeof(struct compat_cmsghdr)) + (len))
+
+#define CMSG_COMPAT_FIRSTHDR(msg)                       \
+        (((msg)->msg_controllen) >= sizeof(struct compat_cmsghdr) ?     \
+         (struct compat_cmsghdr __user *)((msg)->msg_control) :         \
+         (struct compat_cmsghdr __user *)NULL)
+
+#define CMSG_COMPAT_OK(ucmlen, ucmsg, mhdr) \
+        ((ucmlen) >= sizeof(struct compat_cmsghdr) && \
+         (ucmlen) <= (unsigned long) \
+         ((mhdr)->msg_controllen - \
+          ((char *)(ucmsg) - (char *)(mhdr)->msg_control)))
+
+static inline struct compat_cmsghdr __user *cmsg_compat_nxthdr(struct msghdr *msg,
+                struct compat_cmsghdr __user *cmsg, int cmsg_len)
+{
+        char __user *ptr = (char __user *)cmsg + CMSG_COMPAT_ALIGN(cmsg_len);
+        if ((unsigned long)(ptr + 1 - (char __user *)msg->msg_control) >
+                        msg->msg_controllen)
+                return NULL;
+        return (struct compat_cmsghdr __user *)ptr;
+}
+
+/* There is a lot of hair here because the alignment rules (and
+ * thus placement) of cmsg headers and length are different for
+ * 32-bit apps.  -DaveM
+ */
+int cmsghdr_from_user_compat_to_kern(struct msghdr *kmsg,
+                               unsigned char *stackbuf, int stackbuf_size)
+{
+        struct compat_cmsghdr __user *ucmsg;
+        struct cmsghdr *kcmsg, *kcmsg_base;
+        compat_size_t ucmlen;
+        __kernel_size_t kcmlen, tmp;
+
+        kcmlen = 0;
+        kcmsg_base = kcmsg = (struct cmsghdr *)stackbuf;
+        ucmsg = CMSG_COMPAT_FIRSTHDR(kmsg);
+        while(ucmsg != NULL) {
+                if(get_user(ucmlen, &ucmsg->cmsg_len))
+                        return -EFAULT;
+
+                /* Catch bogons. */
+                if (!CMSG_COMPAT_OK(ucmlen, ucmsg, kmsg))
+                        return -EINVAL;
+
+                tmp = ((ucmlen - CMSG_COMPAT_ALIGN(sizeof(*ucmsg))) +
+                       CMSG_ALIGN(sizeof(struct cmsghdr)));
+                kcmlen += tmp;
+                ucmsg = cmsg_compat_nxthdr(kmsg, ucmsg, ucmlen);
+        }
+        if(kcmlen == 0)
+                return -EINVAL;
+
+        /* The kcmlen holds the 64-bit version of the control length.
+         * It may not be modified as we do not stick it into the kmsg
+         * until we have successfully copied over all of the data
+         * from the user.
+         */
+        if(kcmlen > stackbuf_size)
+                kcmsg_base = kcmsg = kmalloc(kcmlen, GFP_KERNEL);
+        if(kcmsg == NULL)
+                return -ENOBUFS;
+
+        /* Now copy them over neatly. */
+        memset(kcmsg, 0, kcmlen);
+        ucmsg = CMSG_COMPAT_FIRSTHDR(kmsg);
+        while(ucmsg != NULL) {
+                __get_user(ucmlen, &ucmsg->cmsg_len);
+                tmp = ((ucmlen - CMSG_COMPAT_ALIGN(sizeof(*ucmsg))) +
+                       CMSG_ALIGN(sizeof(struct cmsghdr)));
+                kcmsg->cmsg_len = tmp;
+                __get_user(kcmsg->cmsg_level, &ucmsg->cmsg_level);
+                __get_user(kcmsg->cmsg_type, &ucmsg->cmsg_type);
+
+                /* Copy over the data. */
+                if(copy_from_user(CMSG_DATA(kcmsg),
+                                  CMSG_COMPAT_DATA(ucmsg),
+                                  (ucmlen - CMSG_COMPAT_ALIGN(sizeof(*ucmsg)))))
+                        goto out_free_efault;
+
+                /* Advance. */
+                kcmsg = (struct cmsghdr *)((char *)kcmsg + CMSG_ALIGN(tmp));
+                ucmsg = cmsg_compat_nxthdr(kmsg, ucmsg, ucmlen);
+        }
+
+        /* Ok, looks like we made it.  Hook it up and return success. */
+        kmsg->msg_control = kcmsg_base;
+        kmsg->msg_controllen = kcmlen;
+        return 0;
+
+out_free_efault:
+        if(kcmsg_base != (struct cmsghdr *)stackbuf)
+                kfree(kcmsg_base);
+        return -EFAULT;
+}
+
+int put_cmsg_compat(struct msghdr *kmsg, int level, int type, int len, void *data)
+{
+        struct compat_timeval ctv;
+        struct compat_cmsghdr __user *cm = (struct compat_cmsghdr __user *) kmsg->msg_control;
+        struct compat_cmsghdr cmhdr;
+        int cmlen;
+
+        if(cm == NULL || kmsg->msg_controllen < sizeof(*cm)) {
+                kmsg->msg_flags |= MSG_CTRUNC;
+                return 0; /* XXX: return error? check spec. */
+        }
+
+        if (level == SOL_SOCKET && type == SO_TIMESTAMP) { 
+                struct timeval *tv = (struct timeval *)data;
+                ctv.tv_sec = tv->tv_sec;
+                ctv.tv_usec = tv->tv_usec;
+                data = &ctv;
+                len = sizeof(struct compat_timeval);
+        } 
+        
+        cmlen = CMSG_COMPAT_LEN(len);
+        if(kmsg->msg_controllen < cmlen) {
+                kmsg->msg_flags |= MSG_CTRUNC;
+                cmlen = kmsg->msg_controllen;
+        }
+        cmhdr.cmsg_level = level;
+        cmhdr.cmsg_type = type;
+        cmhdr.cmsg_len = cmlen;
+
+        if(copy_to_user(cm, &cmhdr, sizeof cmhdr))
+                return -EFAULT;
+        if(copy_to_user(CMSG_COMPAT_DATA(cm), data, cmlen - sizeof(struct compat_cmsghdr)))
+                return -EFAULT;
+        cmlen = CMSG_COMPAT_SPACE(len);
+        kmsg->msg_control += cmlen;
+        kmsg->msg_controllen -= cmlen;
+        return 0;
+}
+
+void scm_detach_fds_compat(struct msghdr *kmsg, struct scm_cookie *scm)
+{
+        struct compat_cmsghdr __user *cm = (struct compat_cmsghdr __user *) kmsg->msg_control;
+        int fdmax = (kmsg->msg_controllen - sizeof(struct compat_cmsghdr)) / sizeof(int);
+        int fdnum = scm->fp->count;
+        struct file **fp = scm->fp->fp;
+        int __user *cmfptr;
+        int err = 0, i;
+
+        if (fdnum < fdmax)
+                fdmax = fdnum;
+
+        for (i = 0, cmfptr = (int __user *) CMSG_COMPAT_DATA(cm); i < fdmax; i++, cmfptr++) {
+                int new_fd;
+                err = security_file_receive(fp[i]);
+                if (err)
+                        break;
+                err = get_unused_fd();
+                if (err < 0)
+                        break;
+                new_fd = err;
+                err = put_user(new_fd, cmfptr);
+                if (err) {
+                        put_unused_fd(new_fd);
+                        break;
+                }
+                /* Bump the usage count and install the file. */
+                get_file(fp[i]);
+                fd_install(new_fd, fp[i]);
+        }
+
+        if (i > 0) {
+                int cmlen = CMSG_COMPAT_LEN(i * sizeof(int));
+                if (!err)
+                        err = put_user(SOL_SOCKET, &cm->cmsg_level);
+                if (!err)
+                        err = put_user(SCM_RIGHTS, &cm->cmsg_type);
+                if (!err)
+                        err = put_user(cmlen, &cm->cmsg_len);
+                if (!err) {
+                        cmlen = CMSG_COMPAT_SPACE(i * sizeof(int));
+                        kmsg->msg_control += cmlen;
+                        kmsg->msg_controllen -= cmlen;
+                }
+        }
+        if (i < fdnum)
+                kmsg->msg_flags |= MSG_CTRUNC;
+
+        /*
+         * All of the files that fit in the message have had their
+         * usage counts incremented, so we just free the list.
+         */
+        __scm_destroy(scm);
+}
+
+/*
+ * For now, we assume that the compatibility and native version
+ * of struct ipt_entry are the same - sfr.  FIXME
+ */
+struct compat_ipt_replace {
+        char                    name[IPT_TABLE_MAXNAMELEN];
+        u32                     valid_hooks;
+        u32                     num_entries;
+        u32                     size;
+        u32                     hook_entry[NF_IP_NUMHOOKS];
+        u32                     underflow[NF_IP_NUMHOOKS];
+        u32                     num_counters;
+        compat_uptr_t           counters;       /* struct ipt_counters * */
+        struct ipt_entry        entries[0];
+};
+
+static int do_netfilter_replace(int fd, int level, int optname,
+                                char __user *optval, int optlen)
+{
+        struct compat_ipt_replace __user *urepl;
+        struct ipt_replace __user *repl_nat;
+        char name[IPT_TABLE_MAXNAMELEN];
+        u32 origsize, tmp32, num_counters;
+        unsigned int repl_nat_size;
+        int ret;
+        int i;
+        compat_uptr_t ucntrs;
+
+        urepl = (struct compat_ipt_replace __user *)optval;
+        if (get_user(origsize, &urepl->size))
+                return -EFAULT;
+
+        /* Hack: Causes ipchains to give correct error msg --RR */
+        if (optlen != sizeof(*urepl) + origsize)
+                return -ENOPROTOOPT;
+
+        /* XXX Assumes that size of ipt_entry is the same both in
+         *     native and compat environments.
+         */
+        repl_nat_size = sizeof(*repl_nat) + origsize;
+        repl_nat = compat_alloc_user_space(repl_nat_size);
+
+        ret = -EFAULT;
+        if (put_user(origsize, &repl_nat->size))
+                goto out;
+
+        if (!access_ok(VERIFY_READ, urepl, optlen) ||
+            !access_ok(VERIFY_WRITE, repl_nat, optlen))
+                goto out;
+
+        if (__copy_from_user(name, urepl->name, sizeof(urepl->name)) ||
+            __copy_to_user(repl_nat->name, name, sizeof(repl_nat->name)))
+                goto out;
+
+        if (__get_user(tmp32, &urepl->valid_hooks) ||
+            __put_user(tmp32, &repl_nat->valid_hooks))
+                goto out;
+
+        if (__get_user(tmp32, &urepl->num_entries) ||
+            __put_user(tmp32, &repl_nat->num_entries))
+                goto out;
+
+        if (__get_user(num_counters, &urepl->num_counters) ||
+            __put_user(num_counters, &repl_nat->num_counters))
+                goto out;
+
+        if (__get_user(ucntrs, &urepl->counters) ||
+            __put_user(compat_ptr(ucntrs), &repl_nat->counters))
+                goto out;
+
+        if (__copy_in_user(&repl_nat->entries[0],
+                           &urepl->entries[0],
+                           origsize))
+                goto out;
+
+        for (i = 0; i < NF_IP_NUMHOOKS; i++) {
+                if (__get_user(tmp32, &urepl->hook_entry[i]) ||
+                    __put_user(tmp32, &repl_nat->hook_entry[i]) ||
+                    __get_user(tmp32, &urepl->underflow[i]) ||
+                    __put_user(tmp32, &repl_nat->underflow[i]))
+                        goto out;
+        }
+
+        /*
+         * Since struct ipt_counters just contains two u_int64_t members
+         * we can just do the access_ok check here and pass the (converted)
+         * pointer into the standard syscall.  We hope that the pointer is
+         * not misaligned ...
+         */
+        if (!access_ok(VERIFY_WRITE, compat_ptr(ucntrs),
+                       num_counters * sizeof(struct ipt_counters)))
+                goto out;
+
+
+        ret = sys_setsockopt(fd, level, optname,
+                             (char __user *)repl_nat, repl_nat_size);
+
+out:
+        return ret;
+}
+
+/*
+ * A struct sock_filter is architecture independent.
+ */
+struct compat_sock_fprog {
+        u16             len;
+        compat_uptr_t   filter;         /* struct sock_filter * */
+};
+
+static int do_set_attach_filter(int fd, int level, int optname,
+                                char __user *optval, int optlen)
+{
+        struct compat_sock_fprog __user *fprog32 = (struct compat_sock_fprog __user *)optval;
+        struct sock_fprog __user *kfprog = compat_alloc_user_space(sizeof(struct sock_fprog)); 
+        compat_uptr_t ptr;
+        u16 len;
+
+        if (!access_ok(VERIFY_READ, fprog32, sizeof(*fprog32)) ||
+            !access_ok(VERIFY_WRITE, kfprog, sizeof(struct sock_fprog)) ||
+            __get_user(len, &fprog32->len) ||
+            __get_user(ptr, &fprog32->filter) ||
+            __put_user(len, &kfprog->len) ||
+            __put_user(compat_ptr(ptr), &kfprog->filter))
+                return -EFAULT;
+
+        return sys_setsockopt(fd, level, optname, (char __user *)kfprog, 
+                              sizeof(struct sock_fprog));
+}
+
+static int do_set_sock_timeout(int fd, int level, int optname, char __user *optval, int optlen)
+{
+        struct compat_timeval __user *up = (struct compat_timeval __user *) optval;
+        struct timeval ktime;
+        mm_segment_t old_fs;
+        int err;
+
+        if (optlen < sizeof(*up))
+                return -EINVAL;
+        if (!access_ok(VERIFY_READ, up, sizeof(*up)) ||
+            __get_user(ktime.tv_sec, &up->tv_sec) ||
+            __get_user(ktime.tv_usec, &up->tv_usec))
+                return -EFAULT;
+        old_fs = get_fs();
+        set_fs(KERNEL_DS);
+        err = sys_setsockopt(fd, level, optname, (char *) &ktime, sizeof(ktime));
+        set_fs(old_fs);
+
+        return err;
+}
+
+asmlinkage long compat_sys_setsockopt(int fd, int level, int optname,
+                                char __user *optval, int optlen)
+{
+        /* SO_SET_REPLACE seems to be the same in all levels */
+        if (optname == IPT_SO_SET_REPLACE)
+                return do_netfilter_replace(fd, level, optname,
+                                            optval, optlen);
+        if (level == SOL_SOCKET && optname == SO_ATTACH_FILTER)
+                return do_set_attach_filter(fd, level, optname,
+                                            optval, optlen);
+        if (level == SOL_SOCKET &&
+            (optname == SO_RCVTIMEO || optname == SO_SNDTIMEO))
+                return do_set_sock_timeout(fd, level, optname, optval, optlen);
+
+        return sys_setsockopt(fd, level, optname, optval, optlen);
+}
+
+static int do_get_sock_timeout(int fd, int level, int optname,
+                char __user *optval, int __user *optlen)
+{
+        struct compat_timeval __user *up;
+        struct timeval ktime;
+        mm_segment_t old_fs;
+        int len, err;
+
+        up = (struct compat_timeval __user *) optval;
+        if (get_user(len, optlen))
+                return -EFAULT;
+        if (len < sizeof(*up))
+                return -EINVAL;
+        len = sizeof(ktime);
+        old_fs = get_fs();
+        set_fs(KERNEL_DS);
+        err = sys_getsockopt(fd, level, optname, (char *) &ktime, &len);
+        set_fs(old_fs);
+
+        if (!err) {
+                if (put_user(sizeof(*up), optlen) ||
+                    !access_ok(VERIFY_WRITE, up, sizeof(*up)) ||
+                    __put_user(ktime.tv_sec, &up->tv_sec) ||
+                    __put_user(ktime.tv_usec, &up->tv_usec))
+                        err = -EFAULT;
+        }
+        return err;
+}
+
+asmlinkage long compat_sys_getsockopt(int fd, int level, int optname,
+                                char __user *optval, int __user *optlen)
+{
+        if (level == SOL_SOCKET &&
+            (optname == SO_RCVTIMEO || optname == SO_SNDTIMEO))
+                return do_get_sock_timeout(fd, level, optname, optval, optlen);
+        return sys_getsockopt(fd, level, optname, optval, optlen);
+}
+
+/* Argument list sizes for compat_sys_socketcall */
+#define AL(x) ((x) * sizeof(u32))
+static unsigned char nas[18]={AL(0),AL(3),AL(3),AL(3),AL(2),AL(3),
+                                AL(3),AL(3),AL(4),AL(4),AL(4),AL(6),
+                                AL(6),AL(2),AL(5),AL(5),AL(3),AL(3)};
+#undef AL
+
+asmlinkage long compat_sys_sendmsg(int fd, struct compat_msghdr __user *msg, unsigned flags)
+{
+        return sys_sendmsg(fd, (struct msghdr __user *)msg, flags | MSG_CMSG_COMPAT);
+}
+
+asmlinkage long compat_sys_recvmsg(int fd, struct compat_msghdr __user *msg, unsigned int flags)
+{
+        return sys_recvmsg(fd, (struct msghdr __user *)msg, flags | MSG_CMSG_COMPAT);
+}
+
+asmlinkage long compat_sys_socketcall(int call, u32 __user *args)
+{
+        int ret;
+        u32 a[6];
+        u32 a0, a1;
+                                 
+        if (call < SYS_SOCKET || call > SYS_RECVMSG)
+                return -EINVAL;
+        if (copy_from_user(a, args, nas[call]))
+                return -EFAULT;
+        a0 = a[0];
+        a1 = a[1];
+        
+        switch(call) {
+        case SYS_SOCKET:
+                ret = sys_socket(a0, a1, a[2]);
+                break;
+        case SYS_BIND:
+                ret = sys_bind(a0, compat_ptr(a1), a[2]);
+                break;
+        case SYS_CONNECT:
+                ret = sys_connect(a0, compat_ptr(a1), a[2]);
+                break;
+        case SYS_LISTEN:
+                ret = sys_listen(a0, a1);
+                break;
+        case SYS_ACCEPT:
+                ret = sys_accept(a0, compat_ptr(a1), compat_ptr(a[2]));
+                break;
+        case SYS_GETSOCKNAME:
+                ret = sys_getsockname(a0, compat_ptr(a1), compat_ptr(a[2]));
+                break;
+        case SYS_GETPEERNAME:
+                ret = sys_getpeername(a0, compat_ptr(a1), compat_ptr(a[2]));
+                break;
+        case SYS_SOCKETPAIR:
+                ret = sys_socketpair(a0, a1, a[2], compat_ptr(a[3]));
+                break;
+        case SYS_SEND:
+                ret = sys_send(a0, compat_ptr(a1), a[2], a[3]);
+                break;
+        case SYS_SENDTO:
+                ret = sys_sendto(a0, compat_ptr(a1), a[2], a[3], compat_ptr(a[4]), a[5]);
+                break;
+        case SYS_RECV:
+                ret = sys_recv(a0, compat_ptr(a1), a[2], a[3]);
+                break;
+        case SYS_RECVFROM:
+                ret = sys_recvfrom(a0, compat_ptr(a1), a[2], a[3], compat_ptr(a[4]), compat_ptr(a[5]));
+                break;
+        case SYS_SHUTDOWN:
+                ret = sys_shutdown(a0,a1);
+                break;
+        case SYS_SETSOCKOPT:
+                ret = compat_sys_setsockopt(a0, a1, a[2],
+                                compat_ptr(a[3]), a[4]);
+                break;
+        case SYS_GETSOCKOPT:
+                ret = compat_sys_getsockopt(a0, a1, a[2],
+                                compat_ptr(a[3]), compat_ptr(a[4]));
+                break;
+        case SYS_SENDMSG:
+                ret = compat_sys_sendmsg(a0, compat_ptr(a1), a[2]);
+                break;
+        case SYS_RECVMSG:
+                ret = compat_sys_recvmsg(a0, compat_ptr(a1), a[2]);
+                break;
+        default:
+                ret = -EINVAL;
+                break;
+        }
+        return ret;
+}