From 9b4fce7a3508a9776534188b6065b206a9608ccf Mon Sep 17 00:00:00 2001 From: Jan Engelhardt Date: Wed, 8 Oct 2008 11:35:18 +0200 Subject: netfilter: xtables: move extension arguments into compound structure (2/6) This patch does this for match extensions' checkentry functions. Signed-off-by: Jan Engelhardt Signed-off-by: Patrick McHardy --- net/ipv6/netfilter/ip6_tables.c | 48 +++++++++++++++++------------------- net/ipv6/netfilter/ip6t_ah.c | 8 ++---- net/ipv6/netfilter/ip6t_frag.c | 8 ++---- net/ipv6/netfilter/ip6t_hbh.c | 8 ++---- net/ipv6/netfilter/ip6t_ipv6header.c | 7 ++---- net/ipv6/netfilter/ip6t_mh.c | 8 ++---- net/ipv6/netfilter/ip6t_rt.c | 8 ++---- 7 files changed, 35 insertions(+), 60 deletions(-) (limited to 'net/ipv6') diff --git a/net/ipv6/netfilter/ip6_tables.c b/net/ipv6/netfilter/ip6_tables.c index cf2c5370a4e..9c843e3777b 100644 --- a/net/ipv6/netfilter/ip6_tables.c +++ b/net/ipv6/netfilter/ip6_tables.c @@ -629,20 +629,20 @@ check_entry(struct ip6t_entry *e, const char *name) return 0; } -static int check_match(struct ip6t_entry_match *m, const char *name, - const struct ip6t_ip6 *ipv6, - unsigned int hookmask, unsigned int *i) +static int check_match(struct ip6t_entry_match *m, struct xt_mtchk_param *par, + unsigned int *i) { - struct xt_match *match; + const struct ip6t_ip6 *ipv6 = par->entryinfo; int ret; - match = m->u.kernel.match; - ret = xt_check_match(match, AF_INET6, m->u.match_size - sizeof(*m), - name, hookmask, ipv6->proto, - ipv6->invflags & IP6T_INV_PROTO, ipv6, m->data); + par->match = m->u.kernel.match; + par->matchinfo = m->data; + + ret = xt_check_match(par, NFPROTO_IPV6, m->u.match_size - sizeof(*m), + ipv6->proto, ipv6->invflags & IP6T_INV_PROTO); if (ret < 0) { duprintf("ip_tables: check failed for `%s'.\n", - m->u.kernel.match->name); + par.match->name); return ret; } ++*i; @@ -650,10 +650,7 @@ static int check_match(struct ip6t_entry_match *m, const char *name, } static int -find_check_match(struct ip6t_entry_match *m, - const char *name, - const struct ip6t_ip6 *ipv6, - unsigned int hookmask, +find_check_match(struct ip6t_entry_match *m, struct xt_mtchk_param *par, unsigned int *i) { struct xt_match *match; @@ -668,7 +665,7 @@ find_check_match(struct ip6t_entry_match *m, } m->u.kernel.match = match; - ret = check_match(m, name, ipv6, hookmask, i); + ret = check_match(m, par, i); if (ret) goto err; @@ -705,14 +702,17 @@ find_check_entry(struct ip6t_entry *e, const char *name, unsigned int size, struct xt_target *target; int ret; unsigned int j; + struct xt_mtchk_param mtpar; ret = check_entry(e, name); if (ret) return ret; j = 0; - ret = IP6T_MATCH_ITERATE(e, find_check_match, name, &e->ipv6, - e->comefrom, &j); + mtpar.table = name; + mtpar.entryinfo = &e->ipv6; + mtpar.hook_mask = e->comefrom; + ret = IP6T_MATCH_ITERATE(e, find_check_match, &mtpar, &j); if (ret != 0) goto cleanup_matches; @@ -1669,10 +1669,13 @@ static int compat_check_entry(struct ip6t_entry *e, const char *name, { unsigned int j; int ret; + struct xt_mtchk_param mtpar; j = 0; - ret = IP6T_MATCH_ITERATE(e, check_match, name, &e->ipv6, - e->comefrom, &j); + mtpar.table = name; + mtpar.entryinfo = &e->ipv6; + mtpar.hook_mask = e->comefrom; + ret = IP6T_MATCH_ITERATE(e, check_match, &mtpar, &j); if (ret) goto cleanup_matches; @@ -2166,14 +2169,9 @@ icmp6_match(const struct sk_buff *skb, const struct xt_match_param *par) } /* Called when user tries to insert an entry of this type. */ -static bool -icmp6_checkentry(const char *tablename, - const void *entry, - const struct xt_match *match, - void *matchinfo, - unsigned int hook_mask) +static bool icmp6_checkentry(const struct xt_mtchk_param *par) { - const struct ip6t_icmp *icmpinfo = matchinfo; + const struct ip6t_icmp *icmpinfo = par->matchinfo; /* Must specify no unknown invflags */ return !(icmpinfo->invflags & ~IP6T_ICMP_INV); diff --git a/net/ipv6/netfilter/ip6t_ah.c b/net/ipv6/netfilter/ip6t_ah.c index a04f2b8396e..3a82f24746b 100644 --- a/net/ipv6/netfilter/ip6t_ah.c +++ b/net/ipv6/netfilter/ip6t_ah.c @@ -90,13 +90,9 @@ static bool ah_mt6(const struct sk_buff *skb, const struct xt_match_param *par) !(ahinfo->hdrres && ah->reserved); } -/* Called when user tries to insert an entry of this type. */ -static bool -ah_mt6_check(const char *tablename, const void *entry, - const struct xt_match *match, void *matchinfo, - unsigned int hook_mask) +static bool ah_mt6_check(const struct xt_mtchk_param *par) { - const struct ip6t_ah *ahinfo = matchinfo; + const struct ip6t_ah *ahinfo = par->matchinfo; if (ahinfo->invflags & ~IP6T_AH_INV_MASK) { pr_debug("ip6t_ah: unknown flags %X\n", ahinfo->invflags); diff --git a/net/ipv6/netfilter/ip6t_frag.c b/net/ipv6/netfilter/ip6t_frag.c index 6951d0dacf4..673aa0a5084 100644 --- a/net/ipv6/netfilter/ip6t_frag.c +++ b/net/ipv6/netfilter/ip6t_frag.c @@ -107,13 +107,9 @@ frag_mt6(const struct sk_buff *skb, const struct xt_match_param *par) && (ntohs(fh->frag_off) & IP6_MF)); } -/* Called when user tries to insert an entry of this type. */ -static bool -frag_mt6_check(const char *tablename, const void *ip, - const struct xt_match *match, void *matchinfo, - unsigned int hook_mask) +static bool frag_mt6_check(const struct xt_mtchk_param *par) { - const struct ip6t_frag *fraginfo = matchinfo; + const struct ip6t_frag *fraginfo = par->matchinfo; if (fraginfo->invflags & ~IP6T_FRAG_INV_MASK) { pr_debug("ip6t_frag: unknown flags %X\n", fraginfo->invflags); diff --git a/net/ipv6/netfilter/ip6t_hbh.c b/net/ipv6/netfilter/ip6t_hbh.c index d3351978819..cbe8dec9744 100644 --- a/net/ipv6/netfilter/ip6t_hbh.c +++ b/net/ipv6/netfilter/ip6t_hbh.c @@ -160,13 +160,9 @@ hbh_mt6(const struct sk_buff *skb, const struct xt_match_param *par) return false; } -/* Called when user tries to insert an entry of this type. */ -static bool -hbh_mt6_check(const char *tablename, const void *entry, - const struct xt_match *match, void *matchinfo, - unsigned int hook_mask) +static bool hbh_mt6_check(const struct xt_mtchk_param *par) { - const struct ip6t_opts *optsinfo = matchinfo; + const struct ip6t_opts *optsinfo = par->matchinfo; if (optsinfo->invflags & ~IP6T_OPTS_INV_MASK) { pr_debug("ip6t_opts: unknown flags %X\n", optsinfo->invflags); diff --git a/net/ipv6/netfilter/ip6t_ipv6header.c b/net/ipv6/netfilter/ip6t_ipv6header.c index 6aaca511d47..14e6724d567 100644 --- a/net/ipv6/netfilter/ip6t_ipv6header.c +++ b/net/ipv6/netfilter/ip6t_ipv6header.c @@ -118,12 +118,9 @@ ipv6header_mt6(const struct sk_buff *skb, const struct xt_match_param *par) } } -static bool -ipv6header_mt6_check(const char *tablename, const void *ip, - const struct xt_match *match, void *matchinfo, - unsigned int hook_mask) +static bool ipv6header_mt6_check(const struct xt_mtchk_param *par) { - const struct ip6t_ipv6header_info *info = matchinfo; + const struct ip6t_ipv6header_info *info = par->matchinfo; /* invflags is 0 or 0xff in hard mode */ if ((!info->modeflag) && info->invflags != 0x00 && diff --git a/net/ipv6/netfilter/ip6t_mh.c b/net/ipv6/netfilter/ip6t_mh.c index 2803258b6d0..aafe4e66577 100644 --- a/net/ipv6/netfilter/ip6t_mh.c +++ b/net/ipv6/netfilter/ip6t_mh.c @@ -67,13 +67,9 @@ static bool mh_mt6(const struct sk_buff *skb, const struct xt_match_param *par) !!(mhinfo->invflags & IP6T_MH_INV_TYPE)); } -/* Called when user tries to insert an entry of this type. */ -static bool -mh_mt6_check(const char *tablename, const void *entry, - const struct xt_match *match, void *matchinfo, - unsigned int hook_mask) +static bool mh_mt6_check(const struct xt_mtchk_param *par) { - const struct ip6t_mh *mhinfo = matchinfo; + const struct ip6t_mh *mhinfo = par->matchinfo; /* Must specify no unknown invflags */ return !(mhinfo->invflags & ~IP6T_MH_INV_MASK); diff --git a/net/ipv6/netfilter/ip6t_rt.c b/net/ipv6/netfilter/ip6t_rt.c index 9cf4b8a37af..356b8d6f6ba 100644 --- a/net/ipv6/netfilter/ip6t_rt.c +++ b/net/ipv6/netfilter/ip6t_rt.c @@ -186,13 +186,9 @@ static bool rt_mt6(const struct sk_buff *skb, const struct xt_match_param *par) return false; } -/* Called when user tries to insert an entry of this type. */ -static bool -rt_mt6_check(const char *tablename, const void *entry, - const struct xt_match *match, void *matchinfo, - unsigned int hook_mask) +static bool rt_mt6_check(const struct xt_mtchk_param *par) { - const struct ip6t_rt *rtinfo = matchinfo; + const struct ip6t_rt *rtinfo = par->matchinfo; if (rtinfo->invflags & ~IP6T_RT_INV_MASK) { pr_debug("ip6t_rt: unknown flags %X\n", rtinfo->invflags); -- cgit v1.2.3