diff options
Diffstat (limited to 'net/ipv4/netfilter/ipt_ULOG.c')
| -rw-r--r-- | net/ipv4/netfilter/ipt_ULOG.c | 77 |
1 files changed, 50 insertions, 27 deletions
diff --git a/net/ipv4/netfilter/ipt_ULOG.c b/net/ipv4/netfilter/ipt_ULOG.c index 9acc018766f..23b607b33b3 100644 --- a/net/ipv4/netfilter/ipt_ULOG.c +++ b/net/ipv4/netfilter/ipt_ULOG.c @@ -2,20 +2,6 @@ * netfilter module for userspace packet logging daemons * * (C) 2000-2004 by Harald Welte <laforge@netfilter.org> - * - * 2000/09/22 ulog-cprange feature added - * 2001/01/04 in-kernel queue as proposed by Sebastian Zander - * <zander@fokus.gmd.de> - * 2001/01/30 per-rule nlgroup conflicts with global queue. - * nlgroup now global (sysctl) - * 2001/04/19 ulog-queue reworked, now fixed buffer size specified at - * module loadtime -HW - * 2002/07/07 remove broken nflog_rcv() function -HW - * 2002/08/29 fix shifted/unshifted nlgroup bug -HW - * 2002/10/30 fix uninitialized mac_len field - <Anders K. Pedersen> - * 2004/10/25 fix erroneous calculation of 'len' parameter to NLMSG_PUT - * resulting in bogus 'error during NLMSG_PUT' messages. - * * (C) 1999-2001 Paul `Rusty' Russell * (C) 2002-2004 Netfilter Core Team <coreteam@netfilter.org> * @@ -42,8 +28,6 @@ * flushtimeout: * Specify, after how many hundredths of a second the queue should be * flushed even if it is not full yet. - * - * ipt_ULOG.c,v 1.22 2002/10/30 09:07:31 laforge Exp */ #include <linux/module.h> @@ -187,6 +171,7 @@ static void ipt_ulog_packet(unsigned int hooknum, ulog_packet_msg_t *pm; size_t size, copy_len; struct nlmsghdr *nlh; + struct timeval tv; /* ffs == find first bit set, necessary because userspace * is already shifting groupnumber, but we need unshifted. @@ -232,13 +217,14 @@ static void ipt_ulog_packet(unsigned int hooknum, pm = NLMSG_DATA(nlh); /* We might not have a timestamp, get one */ - if (skb->tstamp.off_sec == 0) + if (skb->tstamp.tv64 == 0) __net_timestamp((struct sk_buff *)skb); /* copy hook, prefix, timestamp, payload, etc. */ pm->data_len = copy_len; - put_unaligned(skb->tstamp.off_sec, &pm->timestamp_sec); - put_unaligned(skb->tstamp.off_usec, &pm->timestamp_usec); + tv = ktime_to_timeval(skb->tstamp); + put_unaligned(tv.tv_sec, &pm->timestamp_sec); + put_unaligned(tv.tv_usec, &pm->timestamp_usec); put_unaligned(skb->mark, &pm->mark); pm->hook = hooknum; if (prefix != NULL) @@ -249,9 +235,9 @@ static void ipt_ulog_packet(unsigned int hooknum, *(pm->prefix) = '\0'; if (in && in->hard_header_len > 0 - && skb->mac.raw != (void *) skb->nh.iph + && skb->mac_header != skb->network_header && in->hard_header_len <= ULOG_MAC_LEN) { - memcpy(pm->mac, skb->mac.raw, in->hard_header_len); + memcpy(pm->mac, skb_mac_header(skb), in->hard_header_len); pm->mac_len = in->hard_header_len; } else pm->mac_len = 0; @@ -363,12 +349,52 @@ static int ipt_ulog_checkentry(const char *tablename, return 1; } +#ifdef CONFIG_COMPAT +struct compat_ipt_ulog_info { + compat_uint_t nl_group; + compat_size_t copy_range; + compat_size_t qthreshold; + char prefix[ULOG_PREFIX_LEN]; +}; + +static void compat_from_user(void *dst, void *src) +{ + struct compat_ipt_ulog_info *cl = src; + struct ipt_ulog_info l = { + .nl_group = cl->nl_group, + .copy_range = cl->copy_range, + .qthreshold = cl->qthreshold, + }; + + memcpy(l.prefix, cl->prefix, sizeof(l.prefix)); + memcpy(dst, &l, sizeof(l)); +} + +static int compat_to_user(void __user *dst, void *src) +{ + struct ipt_ulog_info *l = src; + struct compat_ipt_ulog_info cl = { + .nl_group = l->nl_group, + .copy_range = l->copy_range, + .qthreshold = l->qthreshold, + }; + + memcpy(cl.prefix, l->prefix, sizeof(cl.prefix)); + return copy_to_user(dst, &cl, sizeof(cl)) ? -EFAULT : 0; +} +#endif /* CONFIG_COMPAT */ + static struct xt_target ipt_ulog_reg = { .name = "ULOG", .family = AF_INET, .target = ipt_ulog_target, .targetsize = sizeof(struct ipt_ulog_info), .checkentry = ipt_ulog_checkentry, +#ifdef CONFIG_COMPAT + .compatsize = sizeof(struct compat_ipt_ulog_info), + .compat_from_user = compat_from_user, + .compat_to_user = compat_to_user, +#endif .me = THIS_MODULE, }; @@ -390,14 +416,11 @@ static int __init ipt_ulog_init(void) } /* initialize ulog_buffers */ - for (i = 0; i < ULOG_MAXNLGROUPS; i++) { - init_timer(&ulog_buffers[i].timer); - ulog_buffers[i].timer.function = ulog_timer; - ulog_buffers[i].timer.data = i; - } + for (i = 0; i < ULOG_MAXNLGROUPS; i++) + setup_timer(&ulog_buffers[i].timer, ulog_timer, i); nflognl = netlink_kernel_create(NETLINK_NFLOG, ULOG_MAXNLGROUPS, NULL, - THIS_MODULE); + NULL, THIS_MODULE); if (!nflognl) return -ENOMEM; |