diff options
Diffstat (limited to 'net/packet')
-rw-r--r-- | net/packet/af_packet.c | 78 |
1 files changed, 39 insertions, 39 deletions
diff --git a/net/packet/af_packet.c b/net/packet/af_packet.c index a6fa48788e8f..444550917bc1 100644 --- a/net/packet/af_packet.c +++ b/net/packet/af_packet.c | |||
@@ -11,7 +11,7 @@ | |||
11 | * Fred N. van Kempen, <waltje@uWalt.NL.Mugnet.ORG> | 11 | * Fred N. van Kempen, <waltje@uWalt.NL.Mugnet.ORG> |
12 | * Alan Cox, <gw4pts@gw4pts.ampr.org> | 12 | * Alan Cox, <gw4pts@gw4pts.ampr.org> |
13 | * | 13 | * |
14 | * Fixes: | 14 | * Fixes: |
15 | * Alan Cox : verify_area() now used correctly | 15 | * Alan Cox : verify_area() now used correctly |
16 | * Alan Cox : new skbuff lists, look ma no backlogs! | 16 | * Alan Cox : new skbuff lists, look ma no backlogs! |
17 | * Alan Cox : tidied skbuff lists. | 17 | * Alan Cox : tidied skbuff lists. |
@@ -34,12 +34,12 @@ | |||
34 | * Alexey Kuznetsov : Untied from IPv4 stack. | 34 | * Alexey Kuznetsov : Untied from IPv4 stack. |
35 | * Cyrus Durgin : Fixed kerneld for kmod. | 35 | * Cyrus Durgin : Fixed kerneld for kmod. |
36 | * Michal Ostrowski : Module initialization cleanup. | 36 | * Michal Ostrowski : Module initialization cleanup. |
37 | * Ulises Alonso : Frame number limit removal and | 37 | * Ulises Alonso : Frame number limit removal and |
38 | * packet_set_ring memory leak. | 38 | * packet_set_ring memory leak. |
39 | * Eric Biederman : Allow for > 8 byte hardware addresses. | 39 | * Eric Biederman : Allow for > 8 byte hardware addresses. |
40 | * The convention is that longer addresses | 40 | * The convention is that longer addresses |
41 | * will simply extend the hardware address | 41 | * will simply extend the hardware address |
42 | * byte arrays at the end of sockaddr_ll | 42 | * byte arrays at the end of sockaddr_ll |
43 | * and packet_mreq. | 43 | * and packet_mreq. |
44 | * | 44 | * |
45 | * This program is free software; you can redistribute it and/or | 45 | * This program is free software; you can redistribute it and/or |
@@ -48,7 +48,7 @@ | |||
48 | * 2 of the License, or (at your option) any later version. | 48 | * 2 of the License, or (at your option) any later version. |
49 | * | 49 | * |
50 | */ | 50 | */ |
51 | 51 | ||
52 | #include <linux/types.h> | 52 | #include <linux/types.h> |
53 | #include <linux/sched.h> | 53 | #include <linux/sched.h> |
54 | #include <linux/mm.h> | 54 | #include <linux/mm.h> |
@@ -124,7 +124,7 @@ Outgoing, dev->hard_header!=NULL | |||
124 | 124 | ||
125 | Incoming, dev->hard_header==NULL | 125 | Incoming, dev->hard_header==NULL |
126 | mac.raw -> UNKNOWN position. It is very likely, that it points to ll header. | 126 | mac.raw -> UNKNOWN position. It is very likely, that it points to ll header. |
127 | PPP makes it, that is wrong, because introduce assymetry | 127 | PPP makes it, that is wrong, because introduce assymetry |
128 | between rx and tx paths. | 128 | between rx and tx paths. |
129 | data -> data | 129 | data -> data |
130 | 130 | ||
@@ -237,7 +237,7 @@ static inline char *packet_lookup_frame(struct packet_sock *po, unsigned int pos | |||
237 | frame_offset = position % po->frames_per_block; | 237 | frame_offset = position % po->frames_per_block; |
238 | 238 | ||
239 | frame = po->pg_vec[pg_vec_pos] + (frame_offset * po->frame_size); | 239 | frame = po->pg_vec[pg_vec_pos] + (frame_offset * po->frame_size); |
240 | 240 | ||
241 | return frame; | 241 | return frame; |
242 | } | 242 | } |
243 | #endif | 243 | #endif |
@@ -280,7 +280,7 @@ static int packet_rcv_spkt(struct sk_buff *skb, struct net_device *dev, struct | |||
280 | */ | 280 | */ |
281 | 281 | ||
282 | sk = pt->af_packet_priv; | 282 | sk = pt->af_packet_priv; |
283 | 283 | ||
284 | /* | 284 | /* |
285 | * Yank back the headers [hope the device set this | 285 | * Yank back the headers [hope the device set this |
286 | * right or kerboom...] | 286 | * right or kerboom...] |
@@ -336,7 +336,7 @@ oom: | |||
336 | * Output a raw packet to a device layer. This bypasses all the other | 336 | * Output a raw packet to a device layer. This bypasses all the other |
337 | * protocol layers and you must therefore supply it with a complete frame | 337 | * protocol layers and you must therefore supply it with a complete frame |
338 | */ | 338 | */ |
339 | 339 | ||
340 | static int packet_sendmsg_spkt(struct kiocb *iocb, struct socket *sock, | 340 | static int packet_sendmsg_spkt(struct kiocb *iocb, struct socket *sock, |
341 | struct msghdr *msg, size_t len) | 341 | struct msghdr *msg, size_t len) |
342 | { | 342 | { |
@@ -346,9 +346,9 @@ static int packet_sendmsg_spkt(struct kiocb *iocb, struct socket *sock, | |||
346 | struct net_device *dev; | 346 | struct net_device *dev; |
347 | __be16 proto=0; | 347 | __be16 proto=0; |
348 | int err; | 348 | int err; |
349 | 349 | ||
350 | /* | 350 | /* |
351 | * Get and verify the address. | 351 | * Get and verify the address. |
352 | */ | 352 | */ |
353 | 353 | ||
354 | if (saddr) | 354 | if (saddr) |
@@ -362,7 +362,7 @@ static int packet_sendmsg_spkt(struct kiocb *iocb, struct socket *sock, | |||
362 | return(-ENOTCONN); /* SOCK_PACKET must be sent giving an address */ | 362 | return(-ENOTCONN); /* SOCK_PACKET must be sent giving an address */ |
363 | 363 | ||
364 | /* | 364 | /* |
365 | * Find the device first to size check it | 365 | * Find the device first to size check it |
366 | */ | 366 | */ |
367 | 367 | ||
368 | saddr->spkt_device[13] = 0; | 368 | saddr->spkt_device[13] = 0; |
@@ -370,7 +370,7 @@ static int packet_sendmsg_spkt(struct kiocb *iocb, struct socket *sock, | |||
370 | err = -ENODEV; | 370 | err = -ENODEV; |
371 | if (dev == NULL) | 371 | if (dev == NULL) |
372 | goto out_unlock; | 372 | goto out_unlock; |
373 | 373 | ||
374 | err = -ENETDOWN; | 374 | err = -ENETDOWN; |
375 | if (!(dev->flags & IFF_UP)) | 375 | if (!(dev->flags & IFF_UP)) |
376 | goto out_unlock; | 376 | goto out_unlock; |
@@ -379,7 +379,7 @@ static int packet_sendmsg_spkt(struct kiocb *iocb, struct socket *sock, | |||
379 | * You may not queue a frame bigger than the mtu. This is the lowest level | 379 | * You may not queue a frame bigger than the mtu. This is the lowest level |
380 | * raw protocol and you must do your own fragmentation at this level. | 380 | * raw protocol and you must do your own fragmentation at this level. |
381 | */ | 381 | */ |
382 | 382 | ||
383 | err = -EMSGSIZE; | 383 | err = -EMSGSIZE; |
384 | if (len > dev->mtu + dev->hard_header_len) | 384 | if (len > dev->mtu + dev->hard_header_len) |
385 | goto out_unlock; | 385 | goto out_unlock; |
@@ -392,14 +392,14 @@ static int packet_sendmsg_spkt(struct kiocb *iocb, struct socket *sock, | |||
392 | * deal with the problem - do your own algorithmic backoffs. That's far | 392 | * deal with the problem - do your own algorithmic backoffs. That's far |
393 | * more flexible. | 393 | * more flexible. |
394 | */ | 394 | */ |
395 | 395 | ||
396 | if (skb == NULL) | 396 | if (skb == NULL) |
397 | goto out_unlock; | 397 | goto out_unlock; |
398 | 398 | ||
399 | /* | 399 | /* |
400 | * Fill it in | 400 | * Fill it in |
401 | */ | 401 | */ |
402 | 402 | ||
403 | /* FIXME: Save some space for broken drivers that write a | 403 | /* FIXME: Save some space for broken drivers that write a |
404 | * hard header at transmission time by themselves. PPP is the | 404 | * hard header at transmission time by themselves. PPP is the |
405 | * notable one here. This should really be fixed at the driver level. | 405 | * notable one here. This should really be fixed at the driver level. |
@@ -641,7 +641,7 @@ static int tpacket_rcv(struct sk_buff *skb, struct net_device *dev, struct packe | |||
641 | 641 | ||
642 | spin_lock(&sk->sk_receive_queue.lock); | 642 | spin_lock(&sk->sk_receive_queue.lock); |
643 | h = (struct tpacket_hdr *)packet_lookup_frame(po, po->head); | 643 | h = (struct tpacket_hdr *)packet_lookup_frame(po, po->head); |
644 | 644 | ||
645 | if (h->tp_status) | 645 | if (h->tp_status) |
646 | goto ring_is_full; | 646 | goto ring_is_full; |
647 | po->head = po->head != po->frame_max ? po->head+1 : 0; | 647 | po->head = po->head != po->frame_max ? po->head+1 : 0; |
@@ -660,7 +660,7 @@ static int tpacket_rcv(struct sk_buff *skb, struct net_device *dev, struct packe | |||
660 | h->tp_snaplen = snaplen; | 660 | h->tp_snaplen = snaplen; |
661 | h->tp_mac = macoff; | 661 | h->tp_mac = macoff; |
662 | h->tp_net = netoff; | 662 | h->tp_net = netoff; |
663 | if (skb->tstamp.off_sec == 0) { | 663 | if (skb->tstamp.off_sec == 0) { |
664 | __net_timestamp(skb); | 664 | __net_timestamp(skb); |
665 | sock_enable_timestamp(sk); | 665 | sock_enable_timestamp(sk); |
666 | } | 666 | } |
@@ -700,7 +700,7 @@ drop_n_restore: | |||
700 | skb->len = skb_len; | 700 | skb->len = skb_len; |
701 | } | 701 | } |
702 | drop: | 702 | drop: |
703 | kfree_skb(skb); | 703 | kfree_skb(skb); |
704 | return 0; | 704 | return 0; |
705 | 705 | ||
706 | ring_is_full: | 706 | ring_is_full: |
@@ -728,9 +728,9 @@ static int packet_sendmsg(struct kiocb *iocb, struct socket *sock, | |||
728 | int ifindex, err, reserve = 0; | 728 | int ifindex, err, reserve = 0; |
729 | 729 | ||
730 | /* | 730 | /* |
731 | * Get and verify the address. | 731 | * Get and verify the address. |
732 | */ | 732 | */ |
733 | 733 | ||
734 | if (saddr == NULL) { | 734 | if (saddr == NULL) { |
735 | struct packet_sock *po = pkt_sk(sk); | 735 | struct packet_sock *po = pkt_sk(sk); |
736 | 736 | ||
@@ -939,11 +939,11 @@ static int packet_bind_spkt(struct socket *sock, struct sockaddr *uaddr, int add | |||
939 | char name[15]; | 939 | char name[15]; |
940 | struct net_device *dev; | 940 | struct net_device *dev; |
941 | int err = -ENODEV; | 941 | int err = -ENODEV; |
942 | 942 | ||
943 | /* | 943 | /* |
944 | * Check legality | 944 | * Check legality |
945 | */ | 945 | */ |
946 | 946 | ||
947 | if (addr_len != sizeof(struct sockaddr)) | 947 | if (addr_len != sizeof(struct sockaddr)) |
948 | return -EINVAL; | 948 | return -EINVAL; |
949 | strlcpy(name,uaddr->sa_data,sizeof(name)); | 949 | strlcpy(name,uaddr->sa_data,sizeof(name)); |
@@ -968,7 +968,7 @@ static int packet_bind(struct socket *sock, struct sockaddr *uaddr, int addr_len | |||
968 | /* | 968 | /* |
969 | * Check legality | 969 | * Check legality |
970 | */ | 970 | */ |
971 | 971 | ||
972 | if (addr_len < sizeof(struct sockaddr_ll)) | 972 | if (addr_len < sizeof(struct sockaddr_ll)) |
973 | return -EINVAL; | 973 | return -EINVAL; |
974 | if (sll->sll_family != AF_PACKET) | 974 | if (sll->sll_family != AF_PACKET) |
@@ -995,7 +995,7 @@ static struct proto packet_proto = { | |||
995 | }; | 995 | }; |
996 | 996 | ||
997 | /* | 997 | /* |
998 | * Create a packet of type SOCK_PACKET. | 998 | * Create a packet of type SOCK_PACKET. |
999 | */ | 999 | */ |
1000 | 1000 | ||
1001 | static int packet_create(struct socket *sock, int protocol) | 1001 | static int packet_create(struct socket *sock, int protocol) |
@@ -1097,7 +1097,7 @@ static int packet_recvmsg(struct kiocb *iocb, struct socket *sock, | |||
1097 | skb=skb_recv_datagram(sk,flags,flags&MSG_DONTWAIT,&err); | 1097 | skb=skb_recv_datagram(sk,flags,flags&MSG_DONTWAIT,&err); |
1098 | 1098 | ||
1099 | /* | 1099 | /* |
1100 | * An error occurred so return it. Because skb_recv_datagram() | 1100 | * An error occurred so return it. Because skb_recv_datagram() |
1101 | * handles the blocking we don't see and worry about blocking | 1101 | * handles the blocking we don't see and worry about blocking |
1102 | * retries. | 1102 | * retries. |
1103 | */ | 1103 | */ |
@@ -1358,7 +1358,7 @@ packet_setsockopt(struct socket *sock, int level, int optname, char __user *optv | |||
1358 | 1358 | ||
1359 | switch(optname) { | 1359 | switch(optname) { |
1360 | #ifdef CONFIG_PACKET_MULTICAST | 1360 | #ifdef CONFIG_PACKET_MULTICAST |
1361 | case PACKET_ADD_MEMBERSHIP: | 1361 | case PACKET_ADD_MEMBERSHIP: |
1362 | case PACKET_DROP_MEMBERSHIP: | 1362 | case PACKET_DROP_MEMBERSHIP: |
1363 | { | 1363 | { |
1364 | struct packet_mreq_max mreq; | 1364 | struct packet_mreq_max mreq; |
@@ -1438,7 +1438,7 @@ static int packet_getsockopt(struct socket *sock, int level, int optname, | |||
1438 | 1438 | ||
1439 | if (len < 0) | 1439 | if (len < 0) |
1440 | return -EINVAL; | 1440 | return -EINVAL; |
1441 | 1441 | ||
1442 | switch(optname) { | 1442 | switch(optname) { |
1443 | case PACKET_STATISTICS: | 1443 | case PACKET_STATISTICS: |
1444 | if (len > sizeof(struct tpacket_stats)) | 1444 | if (len > sizeof(struct tpacket_stats)) |
@@ -1547,7 +1547,7 @@ static int packet_ioctl(struct socket *sock, unsigned int cmd, | |||
1547 | } | 1547 | } |
1548 | case SIOCGSTAMP: | 1548 | case SIOCGSTAMP: |
1549 | return sock_get_timestamp(sk, (struct timeval __user *)arg); | 1549 | return sock_get_timestamp(sk, (struct timeval __user *)arg); |
1550 | 1550 | ||
1551 | #ifdef CONFIG_INET | 1551 | #ifdef CONFIG_INET |
1552 | case SIOCADDRT: | 1552 | case SIOCADDRT: |
1553 | case SIOCDELRT: | 1553 | case SIOCDELRT: |
@@ -1608,7 +1608,7 @@ static void packet_mm_open(struct vm_area_struct *vma) | |||
1608 | struct file *file = vma->vm_file; | 1608 | struct file *file = vma->vm_file; |
1609 | struct socket * sock = file->private_data; | 1609 | struct socket * sock = file->private_data; |
1610 | struct sock *sk = sock->sk; | 1610 | struct sock *sk = sock->sk; |
1611 | 1611 | ||
1612 | if (sk) | 1612 | if (sk) |
1613 | atomic_inc(&pkt_sk(sk)->mapped); | 1613 | atomic_inc(&pkt_sk(sk)->mapped); |
1614 | } | 1614 | } |
@@ -1618,7 +1618,7 @@ static void packet_mm_close(struct vm_area_struct *vma) | |||
1618 | struct file *file = vma->vm_file; | 1618 | struct file *file = vma->vm_file; |
1619 | struct socket * sock = file->private_data; | 1619 | struct socket * sock = file->private_data; |
1620 | struct sock *sk = sock->sk; | 1620 | struct sock *sk = sock->sk; |
1621 | 1621 | ||
1622 | if (sk) | 1622 | if (sk) |
1623 | atomic_dec(&pkt_sk(sk)->mapped); | 1623 | atomic_dec(&pkt_sk(sk)->mapped); |
1624 | } | 1624 | } |
@@ -1682,7 +1682,7 @@ static int packet_set_ring(struct sock *sk, struct tpacket_req *req, int closing | |||
1682 | int was_running, order = 0; | 1682 | int was_running, order = 0; |
1683 | __be16 num; | 1683 | __be16 num; |
1684 | int err = 0; | 1684 | int err = 0; |
1685 | 1685 | ||
1686 | if (req->tp_block_nr) { | 1686 | if (req->tp_block_nr) { |
1687 | int i, l; | 1687 | int i, l; |
1688 | 1688 | ||
@@ -1744,7 +1744,7 @@ static int packet_set_ring(struct sock *sk, struct tpacket_req *req, int closing | |||
1744 | __sock_put(sk); | 1744 | __sock_put(sk); |
1745 | } | 1745 | } |
1746 | spin_unlock(&po->bind_lock); | 1746 | spin_unlock(&po->bind_lock); |
1747 | 1747 | ||
1748 | synchronize_net(); | 1748 | synchronize_net(); |
1749 | 1749 | ||
1750 | err = -EBUSY; | 1750 | err = -EBUSY; |
@@ -1861,7 +1861,7 @@ static const struct proto_ops packet_ops = { | |||
1861 | .connect = sock_no_connect, | 1861 | .connect = sock_no_connect, |
1862 | .socketpair = sock_no_socketpair, | 1862 | .socketpair = sock_no_socketpair, |
1863 | .accept = sock_no_accept, | 1863 | .accept = sock_no_accept, |
1864 | .getname = packet_getname, | 1864 | .getname = packet_getname, |
1865 | .poll = packet_poll, | 1865 | .poll = packet_poll, |
1866 | .ioctl = packet_ioctl, | 1866 | .ioctl = packet_ioctl, |
1867 | .listen = sock_no_listen, | 1867 | .listen = sock_no_listen, |
@@ -1906,17 +1906,17 @@ static void *packet_seq_start(struct seq_file *seq, loff_t *pos) | |||
1906 | static void *packet_seq_next(struct seq_file *seq, void *v, loff_t *pos) | 1906 | static void *packet_seq_next(struct seq_file *seq, void *v, loff_t *pos) |
1907 | { | 1907 | { |
1908 | ++*pos; | 1908 | ++*pos; |
1909 | return (v == SEQ_START_TOKEN) | 1909 | return (v == SEQ_START_TOKEN) |
1910 | ? sk_head(&packet_sklist) | 1910 | ? sk_head(&packet_sklist) |
1911 | : sk_next((struct sock*)v) ; | 1911 | : sk_next((struct sock*)v) ; |
1912 | } | 1912 | } |
1913 | 1913 | ||
1914 | static void packet_seq_stop(struct seq_file *seq, void *v) | 1914 | static void packet_seq_stop(struct seq_file *seq, void *v) |
1915 | { | 1915 | { |
1916 | read_unlock(&packet_sklist_lock); | 1916 | read_unlock(&packet_sklist_lock); |
1917 | } | 1917 | } |
1918 | 1918 | ||
1919 | static int packet_seq_show(struct seq_file *seq, void *v) | 1919 | static int packet_seq_show(struct seq_file *seq, void *v) |
1920 | { | 1920 | { |
1921 | if (v == SEQ_START_TOKEN) | 1921 | if (v == SEQ_START_TOKEN) |
1922 | seq_puts(seq, "sk RefCnt Type Proto Iface R Rmem User Inode\n"); | 1922 | seq_puts(seq, "sk RefCnt Type Proto Iface R Rmem User Inode\n"); |