X-Git-Url: http://git.onelab.eu/?a=blobdiff_plain;f=net%2Fnetfilter%2Fxt_connmark.c;h=36c2defff238b193d7377b7e81dfa18d4705b007;hb=97bf2856c6014879bd04983a3e9dfcdac1e7fe85;hp=dc26a27cbcafc2df58bad0ca5687a71d0aa29edf;hpb=16cf0ec7408f389279d413869e94c1a351392f97;p=linux-2.6.git diff --git a/net/netfilter/xt_connmark.c b/net/netfilter/xt_connmark.c index dc26a27cb..36c2defff 100644 --- a/net/netfilter/xt_connmark.c +++ b/net/netfilter/xt_connmark.c @@ -55,73 +55,94 @@ checkentry(const char *tablename, const void *ip, const struct xt_match *match, void *matchinfo, - unsigned int matchsize, unsigned int hook_mask) { - struct xt_connmark_info *cm = (struct xt_connmark_info *)matchinfo; + struct xt_connmark_info *cm = matchinfo; if (cm->mark > 0xffffffff || cm->mask > 0xffffffff) { printk(KERN_WARNING "connmark: only support 32bit mark\n"); return 0; } -#if defined(CONFIG_NF_CONNTRACK) || defined(CONFIG_NF_CONNTRACK_MODULE) if (nf_ct_l3proto_try_module_get(match->family) < 0) { - printk(KERN_WARNING "can't load nf_conntrack support for " + printk(KERN_WARNING "can't load conntrack support for " "proto=%d\n", match->family); return 0; } -#endif return 1; } static void -destroy(const struct xt_match *match, void *matchinfo, unsigned int matchsize) +destroy(const struct xt_match *match, void *matchinfo) { -#if defined(CONFIG_NF_CONNTRACK) || defined(CONFIG_NF_CONNTRACK_MODULE) nf_ct_l3proto_module_put(match->family); -#endif } -static struct xt_match connmark_match = { - .name = "connmark", - .match = match, - .matchsize = sizeof(struct xt_connmark_info), - .checkentry = checkentry, - .destroy = destroy, - .family = AF_INET, - .me = THIS_MODULE +#ifdef CONFIG_COMPAT +struct compat_xt_connmark_info { + compat_ulong_t mark, mask; + u_int8_t invert; + u_int8_t __pad1; + u_int16_t __pad2; }; -static struct xt_match connmark6_match = { - .name = "connmark", - .match = match, - .matchsize = sizeof(struct xt_connmark_info), - .checkentry = checkentry, - .destroy = destroy, - .family = AF_INET6, - .me = THIS_MODULE +static void compat_from_user(void *dst, void *src) +{ + struct compat_xt_connmark_info *cm = src; + struct xt_connmark_info m = { + .mark = cm->mark, + .mask = cm->mask, + .invert = cm->invert, + }; + memcpy(dst, &m, sizeof(m)); +} + +static int compat_to_user(void __user *dst, void *src) +{ + struct xt_connmark_info *m = src; + struct compat_xt_connmark_info cm = { + .mark = m->mark, + .mask = m->mask, + .invert = m->invert, + }; + return copy_to_user(dst, &cm, sizeof(cm)) ? -EFAULT : 0; +} +#endif /* CONFIG_COMPAT */ + +static struct xt_match xt_connmark_match[] = { + { + .name = "connmark", + .family = AF_INET, + .checkentry = checkentry, + .match = match, + .destroy = destroy, + .matchsize = sizeof(struct xt_connmark_info), +#ifdef CONFIG_COMPAT + .compatsize = sizeof(struct compat_xt_connmark_info), + .compat_from_user = compat_from_user, + .compat_to_user = compat_to_user, +#endif + .me = THIS_MODULE + }, + { + .name = "connmark", + .family = AF_INET6, + .checkentry = checkentry, + .match = match, + .destroy = destroy, + .matchsize = sizeof(struct xt_connmark_info), + .me = THIS_MODULE + }, }; static int __init xt_connmark_init(void) { - int ret; - - need_conntrack(); - - ret = xt_register_match(&connmark_match); - if (ret) - return ret; - - ret = xt_register_match(&connmark6_match); - if (ret) - xt_unregister_match(&connmark_match); - return ret; + return xt_register_matches(xt_connmark_match, + ARRAY_SIZE(xt_connmark_match)); } static void __exit xt_connmark_fini(void) { - xt_unregister_match(&connmark6_match); - xt_unregister_match(&connmark_match); + xt_unregister_matches(xt_connmark_match, ARRAY_SIZE(xt_connmark_match)); } module_init(xt_connmark_init);