From 34bd137ba744c2e3a320ff50ac64ae51556cdfae Mon Sep 17 00:00:00 2001 From: Alexey Dobriyan Date: Thu, 31 Jan 2008 04:03:03 -0800 Subject: [PATCH] [NETFILTER]: ip_tables: propagate netns from userspace .. all the way down to table searching functions. Signed-off-by: Alexey Dobriyan Signed-off-by: Patrick McHardy Signed-off-by: David S. Miller --- net/ipv4/netfilter/ip_tables.c | 45 +++++++++++++++++----------------- 1 file changed, 23 insertions(+), 22 deletions(-) diff --git a/net/ipv4/netfilter/ip_tables.c b/net/ipv4/netfilter/ip_tables.c index 99dd62d93f4..c1b80f4cb7c 100644 --- a/net/ipv4/netfilter/ip_tables.c +++ b/net/ipv4/netfilter/ip_tables.c @@ -1092,7 +1092,7 @@ static int compat_table_info(const struct xt_table_info *info, } #endif -static int get_info(void __user *user, int *len, int compat) +static int get_info(struct net *net, void __user *user, int *len, int compat) { char name[IPT_TABLE_MAXNAMELEN]; struct xt_table *t; @@ -1112,7 +1112,7 @@ static int get_info(void __user *user, int *len, int compat) if (compat) xt_compat_lock(AF_INET); #endif - t = try_then_request_module(xt_find_table_lock(&init_net, AF_INET, name), + t = try_then_request_module(xt_find_table_lock(net, AF_INET, name), "iptable_%s", name); if (t && !IS_ERR(t)) { struct ipt_getinfo info; @@ -1152,7 +1152,7 @@ static int get_info(void __user *user, int *len, int compat) } static int -get_entries(struct ipt_get_entries __user *uptr, int *len) +get_entries(struct net *net, struct ipt_get_entries __user *uptr, int *len) { int ret; struct ipt_get_entries get; @@ -1170,7 +1170,7 @@ get_entries(struct ipt_get_entries __user *uptr, int *len) return -EINVAL; } - t = xt_find_table_lock(&init_net, AF_INET, get.name); + t = xt_find_table_lock(net, AF_INET, get.name); if (t && !IS_ERR(t)) { struct xt_table_info *private = t->private; duprintf("t->private->number = %u\n", private->number); @@ -1191,7 +1191,7 @@ get_entries(struct ipt_get_entries __user *uptr, int *len) } static int -__do_replace(const char *name, unsigned int valid_hooks, +__do_replace(struct net *net, const char *name, unsigned int valid_hooks, struct xt_table_info *newinfo, unsigned int num_counters, void __user *counters_ptr) { @@ -1208,7 +1208,7 @@ __do_replace(const char *name, unsigned int valid_hooks, goto out; } - t = try_then_request_module(xt_find_table_lock(&init_net, AF_INET, name), + t = try_then_request_module(xt_find_table_lock(net, AF_INET, name), "iptable_%s", name); if (!t || IS_ERR(t)) { ret = t ? PTR_ERR(t) : -ENOENT; @@ -1261,7 +1261,7 @@ __do_replace(const char *name, unsigned int valid_hooks, } static int -do_replace(void __user *user, unsigned int len) +do_replace(struct net *net, void __user *user, unsigned int len) { int ret; struct ipt_replace tmp; @@ -1295,7 +1295,7 @@ do_replace(void __user *user, unsigned int len) duprintf("ip_tables: Translated table\n"); - ret = __do_replace(tmp.name, tmp.valid_hooks, newinfo, + ret = __do_replace(net, tmp.name, tmp.valid_hooks, newinfo, tmp.num_counters, tmp.counters); if (ret) goto free_newinfo_untrans; @@ -1331,7 +1331,7 @@ add_counter_to_entry(struct ipt_entry *e, } static int -do_add_counters(void __user *user, unsigned int len, int compat) +do_add_counters(struct net *net, void __user *user, unsigned int len, int compat) { unsigned int i; struct xt_counters_info tmp; @@ -1383,7 +1383,7 @@ do_add_counters(void __user *user, unsigned int len, int compat) goto free; } - t = xt_find_table_lock(&init_net, AF_INET, name); + t = xt_find_table_lock(net, AF_INET, name); if (!t || IS_ERR(t)) { ret = t ? PTR_ERR(t) : -ENOENT; goto free; @@ -1789,7 +1789,7 @@ out_unlock: } static int -compat_do_replace(void __user *user, unsigned int len) +compat_do_replace(struct net *net, void __user *user, unsigned int len) { int ret; struct compat_ipt_replace tmp; @@ -1826,7 +1826,7 @@ compat_do_replace(void __user *user, unsigned int len) duprintf("compat_do_replace: Translated table\n"); - ret = __do_replace(tmp.name, tmp.valid_hooks, newinfo, + ret = __do_replace(net, tmp.name, tmp.valid_hooks, newinfo, tmp.num_counters, compat_ptr(tmp.counters)); if (ret) goto free_newinfo_untrans; @@ -1850,11 +1850,11 @@ compat_do_ipt_set_ctl(struct sock *sk, int cmd, void __user *user, switch (cmd) { case IPT_SO_SET_REPLACE: - ret = compat_do_replace(user, len); + ret = compat_do_replace(sk->sk_net, user, len); break; case IPT_SO_SET_ADD_COUNTERS: - ret = do_add_counters(user, len, 1); + ret = do_add_counters(sk->sk_net, user, len, 1); break; default: @@ -1903,7 +1903,8 @@ compat_copy_entries_to_user(unsigned int total_size, struct xt_table *table, } static int -compat_get_entries(struct compat_ipt_get_entries __user *uptr, int *len) +compat_get_entries(struct net *net, struct compat_ipt_get_entries __user *uptr, + int *len) { int ret; struct compat_ipt_get_entries get; @@ -1924,7 +1925,7 @@ compat_get_entries(struct compat_ipt_get_entries __user *uptr, int *len) } xt_compat_lock(AF_INET); - t = xt_find_table_lock(&init_net, AF_INET, get.name); + t = xt_find_table_lock(net, AF_INET, get.name); if (t && !IS_ERR(t)) { struct xt_table_info *private = t->private; struct xt_table_info info; @@ -1960,10 +1961,10 @@ compat_do_ipt_get_ctl(struct sock *sk, int cmd, void __user *user, int *len) switch (cmd) { case IPT_SO_GET_INFO: - ret = get_info(user, len, 1); + ret = get_info(sk->sk_net, user, len, 1); break; case IPT_SO_GET_ENTRIES: - ret = compat_get_entries(user, len); + ret = compat_get_entries(sk->sk_net, user, len); break; default: ret = do_ipt_get_ctl(sk, cmd, user, len); @@ -1982,11 +1983,11 @@ do_ipt_set_ctl(struct sock *sk, int cmd, void __user *user, unsigned int len) switch (cmd) { case IPT_SO_SET_REPLACE: - ret = do_replace(user, len); + ret = do_replace(sk->sk_net, user, len); break; case IPT_SO_SET_ADD_COUNTERS: - ret = do_add_counters(user, len, 0); + ret = do_add_counters(sk->sk_net, user, len, 0); break; default: @@ -2007,11 +2008,11 @@ do_ipt_get_ctl(struct sock *sk, int cmd, void __user *user, int *len) switch (cmd) { case IPT_SO_GET_INFO: - ret = get_info(user, len, 0); + ret = get_info(sk->sk_net, user, len, 0); break; case IPT_SO_GET_ENTRIES: - ret = get_entries(user, len); + ret = get_entries(sk->sk_net, user, len); break; case IPT_SO_GET_REVISION_MATCH: -- 2.41.1