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authorJakub Kicinski <kuba@kernel.org>2024-02-22 15:24:56 -0800
committerJakub Kicinski <kuba@kernel.org>2024-02-22 15:29:26 -0800
commitfecc51559a844b7f74119159c3cdb25b80b4e2c6 (patch)
tree2cf1e49810eb0c58e552f722cc2ab2742e62cf43 /net/mptcp/protocol.h
parent0fb848d1a41e0d3895cb157810862db6046063dd (diff)
parent6714ebb922ab15a209dfc3c1ed29d4bb0abc9f02 (diff)
Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net
Cross-merge networking fixes after downstream PR. Conflicts: net/ipv4/udp.c f796feabb9f5 ("udp: add local "peek offset enabled" flag") 56667da7399e ("net: implement lockless setsockopt(SO_PEEK_OFF)") Adjacent changes: net/unix/garbage.c aa82ac51d633 ("af_unix: Drop oob_skb ref before purging queue in GC.") 11498715f266 ("af_unix: Remove io_uring code for GC.") Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Diffstat (limited to 'net/mptcp/protocol.h')
-rw-r--r--net/mptcp/protocol.h15
1 files changed, 12 insertions, 3 deletions
diff --git a/net/mptcp/protocol.h b/net/mptcp/protocol.h
index c5ec056040eb..f89b197a9f92 100644
--- a/net/mptcp/protocol.h
+++ b/net/mptcp/protocol.h
@@ -493,10 +493,9 @@ struct mptcp_subflow_context {
remote_key_valid : 1, /* received the peer key from */
disposable : 1, /* ctx can be free at ulp release time */
stale : 1, /* unable to snd/rcv data, do not use for xmit */
- local_id_valid : 1, /* local_id is correctly initialized */
valid_csum_seen : 1, /* at least one csum validated */
is_mptfo : 1, /* subflow is doing TFO */
- __unused : 9;
+ __unused : 10;
bool data_avail;
bool scheduled;
u32 remote_nonce;
@@ -507,7 +506,7 @@ struct mptcp_subflow_context {
u8 hmac[MPTCPOPT_HMAC_LEN]; /* MPJ subflow only */
u64 iasn; /* initial ack sequence number, MPC subflows only */
};
- u8 local_id;
+ s16 local_id; /* if negative not initialized yet */
u8 remote_id;
u8 reset_seen:1;
u8 reset_transient:1;
@@ -558,6 +557,7 @@ mptcp_subflow_ctx_reset(struct mptcp_subflow_context *subflow)
{
memset(&subflow->reset, 0, sizeof(subflow->reset));
subflow->request_mptcp = 1;
+ WRITE_ONCE(subflow->local_id, -1);
}
static inline u64
@@ -1024,6 +1024,15 @@ int mptcp_pm_get_local_id(struct mptcp_sock *msk, struct sock_common *skc);
int mptcp_pm_nl_get_local_id(struct mptcp_sock *msk, struct mptcp_addr_info *skc);
int mptcp_userspace_pm_get_local_id(struct mptcp_sock *msk, struct mptcp_addr_info *skc);
+static inline u8 subflow_get_local_id(const struct mptcp_subflow_context *subflow)
+{
+ int local_id = READ_ONCE(subflow->local_id);
+
+ if (local_id < 0)
+ return 0;
+ return local_id;
+}
+
void __init mptcp_pm_nl_init(void);
void mptcp_pm_nl_work(struct mptcp_sock *msk);
void mptcp_pm_nl_rm_subflow_received(struct mptcp_sock *msk,