diff --git a/include/net/netfilter/nf_tables.h b/include/net/netfilter/nf_tables.h index ac84686aaafb..2aa8a9d80fbe 100644 --- a/include/net/netfilter/nf_tables.h +++ b/include/net/netfilter/nf_tables.h @@ -988,9 +988,9 @@ struct nft_object *nf_tables_obj_lookup(const struct nft_table *table, const struct nlattr *nla, u32 objtype, u8 genmask); -int nft_obj_notify(struct net *net, struct nft_table *table, - struct nft_object *obj, u32 portid, u32 seq, - int event, int family, int report, gfp_t gfp); +void nft_obj_notify(struct net *net, struct nft_table *table, + struct nft_object *obj, u32 portid, u32 seq, + int event, int family, int report, gfp_t gfp); /** * struct nft_object_type - stateful object type diff --git a/net/ipv4/netfilter.c b/net/ipv4/netfilter.c index b3cc1335adbc..c0cc6aa8cfaa 100644 --- a/net/ipv4/netfilter.c +++ b/net/ipv4/netfilter.c @@ -23,7 +23,8 @@ int ip_route_me_harder(struct net *net, struct sk_buff *skb, unsigned int addr_t struct rtable *rt; struct flowi4 fl4 = {}; __be32 saddr = iph->saddr; - __u8 flags = skb->sk ? inet_sk_flowi_flags(skb->sk) : 0; + const struct sock *sk = skb_to_full_sk(skb); + __u8 flags = sk ? inet_sk_flowi_flags(sk) : 0; struct net_device *dev = skb_dst(skb)->dev; unsigned int hh_len; @@ -40,7 +41,7 @@ int ip_route_me_harder(struct net *net, struct sk_buff *skb, unsigned int addr_t fl4.daddr = iph->daddr; fl4.saddr = saddr; fl4.flowi4_tos = RT_TOS(iph->tos); - fl4.flowi4_oif = skb->sk ? skb->sk->sk_bound_dev_if : 0; + fl4.flowi4_oif = sk ? sk->sk_bound_dev_if : 0; if (!fl4.flowi4_oif) fl4.flowi4_oif = l3mdev_master_ifindex(dev); fl4.flowi4_mark = skb->mark; @@ -61,7 +62,7 @@ int ip_route_me_harder(struct net *net, struct sk_buff *skb, unsigned int addr_t xfrm_decode_session(skb, flowi4_to_flowi(&fl4), AF_INET) == 0) { struct dst_entry *dst = skb_dst(skb); skb_dst_set(skb, NULL); - dst = xfrm_lookup(net, dst, flowi4_to_flowi(&fl4), skb->sk, 0); + dst = xfrm_lookup(net, dst, flowi4_to_flowi(&fl4), sk, 0); if (IS_ERR(dst)) return PTR_ERR(dst); skb_dst_set(skb, dst); diff --git a/net/netfilter/nf_conntrack_sip.c b/net/netfilter/nf_conntrack_sip.c index 24174c520239..0d17894798b5 100644 --- a/net/netfilter/nf_conntrack_sip.c +++ b/net/netfilter/nf_conntrack_sip.c @@ -1628,8 +1628,6 @@ static int __init nf_conntrack_sip_init(void) ports[ports_c++] = SIP_PORT; for (i = 0; i < ports_c; i++) { - memset(&sip[i], 0, sizeof(sip[i])); - nf_ct_helper_init(&sip[4 * i], AF_INET, IPPROTO_UDP, "sip", SIP_PORT, ports[i], i, sip_exp_policy, SIP_EXPECT_MAX, diff --git a/net/netfilter/nf_tables_api.c b/net/netfilter/nf_tables_api.c index ff7304ae58ac..5e0ccfd5bb37 100644 --- a/net/netfilter/nf_tables_api.c +++ b/net/netfilter/nf_tables_api.c @@ -461,16 +461,15 @@ static int nf_tables_fill_table_info(struct sk_buff *skb, struct net *net, return -1; } -static int nf_tables_table_notify(const struct nft_ctx *ctx, int event) +static void nf_tables_table_notify(const struct nft_ctx *ctx, int event) { struct sk_buff *skb; int err; if (!ctx->report && !nfnetlink_has_listeners(ctx->net, NFNLGRP_NFTABLES)) - return 0; + return; - err = -ENOBUFS; skb = nlmsg_new(NLMSG_GOODSIZE, GFP_KERNEL); if (skb == NULL) goto err; @@ -482,14 +481,11 @@ static int nf_tables_table_notify(const struct nft_ctx *ctx, int event) goto err; } - err = nfnetlink_send(skb, ctx->net, ctx->portid, NFNLGRP_NFTABLES, - ctx->report, GFP_KERNEL); + nfnetlink_send(skb, ctx->net, ctx->portid, NFNLGRP_NFTABLES, + ctx->report, GFP_KERNEL); + return; err: - if (err < 0) { - nfnetlink_set_err(ctx->net, ctx->portid, NFNLGRP_NFTABLES, - err); - } - return err; + nfnetlink_set_err(ctx->net, ctx->portid, NFNLGRP_NFTABLES, -ENOBUFS); } static int nf_tables_dump_tables(struct sk_buff *skb, @@ -1050,16 +1046,15 @@ static int nf_tables_fill_chain_info(struct sk_buff *skb, struct net *net, return -1; } -static int nf_tables_chain_notify(const struct nft_ctx *ctx, int event) +static void nf_tables_chain_notify(const struct nft_ctx *ctx, int event) { struct sk_buff *skb; int err; if (!ctx->report && !nfnetlink_has_listeners(ctx->net, NFNLGRP_NFTABLES)) - return 0; + return; - err = -ENOBUFS; skb = nlmsg_new(NLMSG_GOODSIZE, GFP_KERNEL); if (skb == NULL) goto err; @@ -1072,14 +1067,11 @@ static int nf_tables_chain_notify(const struct nft_ctx *ctx, int event) goto err; } - err = nfnetlink_send(skb, ctx->net, ctx->portid, NFNLGRP_NFTABLES, - ctx->report, GFP_KERNEL); + nfnetlink_send(skb, ctx->net, ctx->portid, NFNLGRP_NFTABLES, + ctx->report, GFP_KERNEL); + return; err: - if (err < 0) { - nfnetlink_set_err(ctx->net, ctx->portid, NFNLGRP_NFTABLES, - err); - } - return err; + nfnetlink_set_err(ctx->net, ctx->portid, NFNLGRP_NFTABLES, -ENOBUFS); } static int nf_tables_dump_chains(struct sk_buff *skb, @@ -1934,18 +1926,16 @@ static int nf_tables_fill_rule_info(struct sk_buff *skb, struct net *net, return -1; } -static int nf_tables_rule_notify(const struct nft_ctx *ctx, - const struct nft_rule *rule, - int event) +static void nf_tables_rule_notify(const struct nft_ctx *ctx, + const struct nft_rule *rule, int event) { struct sk_buff *skb; int err; if (!ctx->report && !nfnetlink_has_listeners(ctx->net, NFNLGRP_NFTABLES)) - return 0; + return; - err = -ENOBUFS; skb = nlmsg_new(NLMSG_GOODSIZE, GFP_KERNEL); if (skb == NULL) goto err; @@ -1958,14 +1948,11 @@ static int nf_tables_rule_notify(const struct nft_ctx *ctx, goto err; } - err = nfnetlink_send(skb, ctx->net, ctx->portid, NFNLGRP_NFTABLES, - ctx->report, GFP_KERNEL); + nfnetlink_send(skb, ctx->net, ctx->portid, NFNLGRP_NFTABLES, + ctx->report, GFP_KERNEL); + return; err: - if (err < 0) { - nfnetlink_set_err(ctx->net, ctx->portid, NFNLGRP_NFTABLES, - err); - } - return err; + nfnetlink_set_err(ctx->net, ctx->portid, NFNLGRP_NFTABLES, -ENOBUFS); } struct nft_rule_dump_ctx { @@ -2696,9 +2683,9 @@ static int nf_tables_fill_set(struct sk_buff *skb, const struct nft_ctx *ctx, return -1; } -static int nf_tables_set_notify(const struct nft_ctx *ctx, - const struct nft_set *set, - int event, gfp_t gfp_flags) +static void nf_tables_set_notify(const struct nft_ctx *ctx, + const struct nft_set *set, int event, + gfp_t gfp_flags) { struct sk_buff *skb; u32 portid = ctx->portid; @@ -2706,9 +2693,8 @@ static int nf_tables_set_notify(const struct nft_ctx *ctx, if (!ctx->report && !nfnetlink_has_listeners(ctx->net, NFNLGRP_NFTABLES)) - return 0; + return; - err = -ENOBUFS; skb = nlmsg_new(NLMSG_GOODSIZE, gfp_flags); if (skb == NULL) goto err; @@ -2719,12 +2705,11 @@ static int nf_tables_set_notify(const struct nft_ctx *ctx, goto err; } - err = nfnetlink_send(skb, ctx->net, portid, NFNLGRP_NFTABLES, - ctx->report, gfp_flags); + nfnetlink_send(skb, ctx->net, portid, NFNLGRP_NFTABLES, ctx->report, + gfp_flags); + return; err: - if (err < 0) - nfnetlink_set_err(ctx->net, portid, NFNLGRP_NFTABLES, err); - return err; + nfnetlink_set_err(ctx->net, portid, NFNLGRP_NFTABLES, -ENOBUFS); } static int nf_tables_dump_sets(struct sk_buff *skb, struct netlink_callback *cb) @@ -3504,10 +3489,10 @@ static int nf_tables_fill_setelem_info(struct sk_buff *skb, return -1; } -static int nf_tables_setelem_notify(const struct nft_ctx *ctx, - const struct nft_set *set, - const struct nft_set_elem *elem, - int event, u16 flags) +static void nf_tables_setelem_notify(const struct nft_ctx *ctx, + const struct nft_set *set, + const struct nft_set_elem *elem, + int event, u16 flags) { struct net *net = ctx->net; u32 portid = ctx->portid; @@ -3515,9 +3500,8 @@ static int nf_tables_setelem_notify(const struct nft_ctx *ctx, int err; if (!ctx->report && !nfnetlink_has_listeners(net, NFNLGRP_NFTABLES)) - return 0; + return; - err = -ENOBUFS; skb = nlmsg_new(NLMSG_GOODSIZE, GFP_KERNEL); if (skb == NULL) goto err; @@ -3529,12 +3513,11 @@ static int nf_tables_setelem_notify(const struct nft_ctx *ctx, goto err; } - err = nfnetlink_send(skb, net, portid, NFNLGRP_NFTABLES, ctx->report, - GFP_KERNEL); + nfnetlink_send(skb, net, portid, NFNLGRP_NFTABLES, ctx->report, + GFP_KERNEL); + return; err: - if (err < 0) - nfnetlink_set_err(net, portid, NFNLGRP_NFTABLES, err); - return err; + nfnetlink_set_err(net, portid, NFNLGRP_NFTABLES, -ENOBUFS); } static struct nft_trans *nft_trans_elem_alloc(struct nft_ctx *ctx, @@ -4476,18 +4459,17 @@ static int nf_tables_delobj(struct net *net, struct sock *nlsk, return nft_delobj(&ctx, obj); } -int nft_obj_notify(struct net *net, struct nft_table *table, - struct nft_object *obj, u32 portid, u32 seq, int event, - int family, int report, gfp_t gfp) +void nft_obj_notify(struct net *net, struct nft_table *table, + struct nft_object *obj, u32 portid, u32 seq, int event, + int family, int report, gfp_t gfp) { struct sk_buff *skb; int err; if (!report && !nfnetlink_has_listeners(net, NFNLGRP_NFTABLES)) - return 0; + return; - err = -ENOBUFS; skb = nlmsg_new(NLMSG_GOODSIZE, gfp); if (skb == NULL) goto err; @@ -4499,21 +4481,18 @@ int nft_obj_notify(struct net *net, struct nft_table *table, goto err; } - err = nfnetlink_send(skb, net, portid, NFNLGRP_NFTABLES, report, gfp); + nfnetlink_send(skb, net, portid, NFNLGRP_NFTABLES, report, gfp); + return; err: - if (err < 0) { - nfnetlink_set_err(net, portid, NFNLGRP_NFTABLES, err); - } - return err; + nfnetlink_set_err(net, portid, NFNLGRP_NFTABLES, -ENOBUFS); } EXPORT_SYMBOL_GPL(nft_obj_notify); -static int nf_tables_obj_notify(const struct nft_ctx *ctx, - struct nft_object *obj, int event) +static void nf_tables_obj_notify(const struct nft_ctx *ctx, + struct nft_object *obj, int event) { - return nft_obj_notify(ctx->net, ctx->table, obj, ctx->portid, - ctx->seq, event, ctx->afi->family, ctx->report, - GFP_KERNEL); + nft_obj_notify(ctx->net, ctx->table, obj, ctx->portid, ctx->seq, event, + ctx->afi->family, ctx->report, GFP_KERNEL); } static int nf_tables_fill_gen_info(struct sk_buff *skb, struct net *net, @@ -4543,7 +4522,8 @@ static int nf_tables_fill_gen_info(struct sk_buff *skb, struct net *net, return -EMSGSIZE; } -static int nf_tables_gen_notify(struct net *net, struct sk_buff *skb, int event) +static void nf_tables_gen_notify(struct net *net, struct sk_buff *skb, + int event) { struct nlmsghdr *nlh = nlmsg_hdr(skb); struct sk_buff *skb2; @@ -4551,9 +4531,8 @@ static int nf_tables_gen_notify(struct net *net, struct sk_buff *skb, int event) if (nlmsg_report(nlh) && !nfnetlink_has_listeners(net, NFNLGRP_NFTABLES)) - return 0; + return; - err = -ENOBUFS; skb2 = nlmsg_new(NLMSG_GOODSIZE, GFP_KERNEL); if (skb2 == NULL) goto err; @@ -4565,14 +4544,12 @@ static int nf_tables_gen_notify(struct net *net, struct sk_buff *skb, int event) goto err; } - err = nfnetlink_send(skb2, net, NETLINK_CB(skb).portid, - NFNLGRP_NFTABLES, nlmsg_report(nlh), GFP_KERNEL); + nfnetlink_send(skb2, net, NETLINK_CB(skb).portid, NFNLGRP_NFTABLES, + nlmsg_report(nlh), GFP_KERNEL); + return; err: - if (err < 0) { - nfnetlink_set_err(net, NETLINK_CB(skb).portid, NFNLGRP_NFTABLES, - err); - } - return err; + nfnetlink_set_err(net, NETLINK_CB(skb).portid, NFNLGRP_NFTABLES, + -ENOBUFS); } static int nf_tables_getgen(struct net *net, struct sock *nlsk, diff --git a/net/netfilter/nft_set_rbtree.c b/net/netfilter/nft_set_rbtree.c index 71e8fb886a73..78dfbf9588b3 100644 --- a/net/netfilter/nft_set_rbtree.c +++ b/net/netfilter/nft_set_rbtree.c @@ -60,11 +60,10 @@ static bool nft_rbtree_lookup(const struct net *net, const struct nft_set *set, d = memcmp(this, key, set->klen); if (d < 0) { parent = parent->rb_left; - /* In case of adjacent ranges, we always see the high - * part of the range in first place, before the low one. - * So don't update interval if the keys are equal. - */ - if (interval && nft_rbtree_equal(set, this, interval)) + if (interval && + nft_rbtree_equal(set, this, interval) && + nft_rbtree_interval_end(this) && + !nft_rbtree_interval_end(interval)) continue; interval = rbe; } else if (d > 0)