diff options
author | Linus Torvalds <torvalds@linux-foundation.org> | 2017-05-02 16:40:27 -0700 |
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committer | Linus Torvalds <torvalds@linux-foundation.org> | 2017-05-02 16:40:27 -0700 |
commit | 8d65b08debc7e62b2c6032d7fe7389d895b92cbc (patch) | |
tree | 0c3141b60c3a03cc32742b5750c5e763b9dae489 /net/netfilter/nfnetlink_cthelper.c | |
parent | 5a0387a8a8efb90ae7fea1e2e5c62de3efa74691 (diff) | |
parent | 5d15af6778b8e4ed1fd41b040283af278e7a9a72 (diff) |
Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next
Pull networking updates from David Millar:
"Here are some highlights from the 2065 networking commits that
happened this development cycle:
1) XDP support for IXGBE (John Fastabend) and thunderx (Sunil Kowuri)
2) Add a generic XDP driver, so that anyone can test XDP even if they
lack a networking device whose driver has explicit XDP support
(me).
3) Sparc64 now has an eBPF JIT too (me)
4) Add a BPF program testing framework via BPF_PROG_TEST_RUN (Alexei
Starovoitov)
5) Make netfitler network namespace teardown less expensive (Florian
Westphal)
6) Add symmetric hashing support to nft_hash (Laura Garcia Liebana)
7) Implement NAPI and GRO in netvsc driver (Stephen Hemminger)
8) Support TC flower offload statistics in mlxsw (Arkadi Sharshevsky)
9) Multiqueue support in stmmac driver (Joao Pinto)
10) Remove TCP timewait recycling, it never really could possibly work
well in the real world and timestamp randomization really zaps any
hint of usability this feature had (Soheil Hassas Yeganeh)
11) Support level3 vs level4 ECMP route hashing in ipv4 (Nikolay
Aleksandrov)
12) Add socket busy poll support to epoll (Sridhar Samudrala)
13) Netlink extended ACK support (Johannes Berg, Pablo Neira Ayuso,
and several others)
14) IPSEC hw offload infrastructure (Steffen Klassert)"
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next: (2065 commits)
tipc: refactor function tipc_sk_recv_stream()
tipc: refactor function tipc_sk_recvmsg()
net: thunderx: Optimize page recycling for XDP
net: thunderx: Support for XDP header adjustment
net: thunderx: Add support for XDP_TX
net: thunderx: Add support for XDP_DROP
net: thunderx: Add basic XDP support
net: thunderx: Cleanup receive buffer allocation
net: thunderx: Optimize CQE_TX handling
net: thunderx: Optimize RBDR descriptor handling
net: thunderx: Support for page recycling
ipx: call ipxitf_put() in ioctl error path
net: sched: add helpers to handle extended actions
qed*: Fix issues in the ptp filter config implementation.
qede: Fix concurrency issue in PTP Tx path processing.
stmmac: Add support for SIMATIC IOT2000 platform
net: hns: fix ethtool_get_strings overflow in hns driver
tcp: fix wraparound issue in tcp_lp
bpf, arm64: fix jit branch offset related to ldimm64
bpf, arm64: implement jiting of BPF_XADD
...
Diffstat (limited to 'net/netfilter/nfnetlink_cthelper.c')
-rw-r--r-- | net/netfilter/nfnetlink_cthelper.c | 30 |
1 files changed, 22 insertions, 8 deletions
diff --git a/net/netfilter/nfnetlink_cthelper.c b/net/netfilter/nfnetlink_cthelper.c index d45558178da5..950bf6eadc65 100644 --- a/net/netfilter/nfnetlink_cthelper.c +++ b/net/netfilter/nfnetlink_cthelper.c @@ -77,7 +77,8 @@ nfnl_cthelper_parse_tuple(struct nf_conntrack_tuple *tuple, int err; struct nlattr *tb[NFCTH_TUPLE_MAX+1]; - err = nla_parse_nested(tb, NFCTH_TUPLE_MAX, attr, nfnl_cthelper_tuple_pol); + err = nla_parse_nested(tb, NFCTH_TUPLE_MAX, attr, + nfnl_cthelper_tuple_pol, NULL); if (err < 0) return err; @@ -104,7 +105,7 @@ nfnl_cthelper_from_nlattr(struct nlattr *attr, struct nf_conn *ct) if (help->helper->data_len == 0) return -EINVAL; - memcpy(help->data, nla_data(attr), help->helper->data_len); + nla_memcpy(help->data, nla_data(attr), sizeof(help->data)); return 0; } @@ -137,7 +138,8 @@ nfnl_cthelper_expect_policy(struct nf_conntrack_expect_policy *expect_policy, int err; struct nlattr *tb[NFCTH_POLICY_MAX+1]; - err = nla_parse_nested(tb, NFCTH_POLICY_MAX, attr, nfnl_cthelper_expect_pol); + err = nla_parse_nested(tb, NFCTH_POLICY_MAX, attr, + nfnl_cthelper_expect_pol, NULL); if (err < 0) return err; @@ -150,6 +152,9 @@ nfnl_cthelper_expect_policy(struct nf_conntrack_expect_policy *expect_policy, nla_data(tb[NFCTH_POLICY_NAME]), NF_CT_HELPER_NAME_LEN); expect_policy->max_expected = ntohl(nla_get_be32(tb[NFCTH_POLICY_EXPECT_MAX])); + if (expect_policy->max_expected > NF_CT_EXPECT_MAX_CNT) + return -EINVAL; + expect_policy->timeout = ntohl(nla_get_be32(tb[NFCTH_POLICY_EXPECT_TIMEOUT])); @@ -171,7 +176,7 @@ nfnl_cthelper_parse_expect_policy(struct nf_conntrack_helper *helper, unsigned int class_max; ret = nla_parse_nested(tb, NFCTH_POLICY_SET_MAX, attr, - nfnl_cthelper_expect_policy_set); + nfnl_cthelper_expect_policy_set, NULL); if (ret < 0) return ret; @@ -213,6 +218,7 @@ nfnl_cthelper_create(const struct nlattr * const tb[], { struct nf_conntrack_helper *helper; struct nfnl_cthelper *nfcth; + unsigned int size; int ret; if (!tb[NFCTH_TUPLE] || !tb[NFCTH_POLICY] || !tb[NFCTH_PRIV_DATA_LEN]) @@ -228,7 +234,12 @@ nfnl_cthelper_create(const struct nlattr * const tb[], goto err1; strncpy(helper->name, nla_data(tb[NFCTH_NAME]), NF_CT_HELPER_NAME_LEN); - helper->data_len = ntohl(nla_get_be32(tb[NFCTH_PRIV_DATA_LEN])); + size = ntohl(nla_get_be32(tb[NFCTH_PRIV_DATA_LEN])); + if (size > FIELD_SIZEOF(struct nf_conn_help, data)) { + ret = -ENOMEM; + goto err2; + } + helper->flags |= NF_CT_HELPER_F_USERSPACE; memcpy(&helper->tuple, tuple, sizeof(struct nf_conntrack_tuple)); @@ -276,7 +287,7 @@ nfnl_cthelper_update_policy_one(const struct nf_conntrack_expect_policy *policy, int err; err = nla_parse_nested(tb, NFCTH_POLICY_MAX, attr, - nfnl_cthelper_expect_pol); + nfnl_cthelper_expect_pol, NULL); if (err < 0) return err; @@ -290,6 +301,9 @@ nfnl_cthelper_update_policy_one(const struct nf_conntrack_expect_policy *policy, new_policy->max_expected = ntohl(nla_get_be32(tb[NFCTH_POLICY_EXPECT_MAX])); + if (new_policy->max_expected > NF_CT_EXPECT_MAX_CNT) + return -EINVAL; + new_policy->timeout = ntohl(nla_get_be32(tb[NFCTH_POLICY_EXPECT_TIMEOUT])); @@ -336,7 +350,7 @@ static int nfnl_cthelper_update_policy(struct nf_conntrack_helper *helper, int err; err = nla_parse_nested(tb, NFCTH_POLICY_SET_MAX, attr, - nfnl_cthelper_expect_policy_set); + nfnl_cthelper_expect_policy_set, NULL); if (err < 0) return err; @@ -501,7 +515,7 @@ nfnl_cthelper_fill_info(struct sk_buff *skb, u32 portid, u32 seq, u32 type, unsigned int flags = portid ? NLM_F_MULTI : 0; int status; - event |= NFNL_SUBSYS_CTHELPER << 8; + event = nfnl_msg_type(NFNL_SUBSYS_CTHELPER, event); nlh = nlmsg_put(skb, portid, seq, event, sizeof(*nfmsg), flags); if (nlh == NULL) goto nlmsg_failure; |