diff options
| author | Geliang Tang <geliangtang@gmail.com> | 2021-03-13 04:16:13 +0300 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2021-03-13 04:47:45 +0300 |
| commit | 5c4a824dcb589f3da2574dd99e761063e7d5529d (patch) | |
| tree | d70bd1882ebf4eb2190a81b4d2cdf35c351f9eea /net/mptcp | |
| parent | cbde2787189632160a2fc09786d17648a8b191c5 (diff) | |
| download | linux-5c4a824dcb589f3da2574dd99e761063e7d5529d.tar.xz | |
mptcp: add rm_list in mptcp_options_received
This patch changed the member rm_id in struct mptcp_options_received as a
list of the removing address ids, and renamed it to rm_list.
In mptcp_parse_option, parsed the RM_ADDR suboption and filled them into
the rm_list in struct mptcp_options_received.
In mptcp_incoming_options, passed this rm_list to the function
mptcp_pm_rm_addr_received.
It also changed the parameter type of mptcp_pm_rm_addr_received.
Signed-off-by: Geliang Tang <geliangtang@gmail.com>
Signed-off-by: Mat Martineau <mathew.j.martineau@linux.intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/mptcp')
| -rw-r--r-- | net/mptcp/options.c | 12 | ||||
| -rw-r--r-- | net/mptcp/pm.c | 11 | ||||
| -rw-r--r-- | net/mptcp/protocol.h | 5 |
3 files changed, 18 insertions, 10 deletions
diff --git a/net/mptcp/options.c b/net/mptcp/options.c index e74d0513187f..5fabf3e9a38d 100644 --- a/net/mptcp/options.c +++ b/net/mptcp/options.c @@ -26,6 +26,7 @@ static void mptcp_parse_option(const struct sk_buff *skb, int expected_opsize; u8 version; u8 flags; + u8 i; switch (subtype) { case MPTCPOPT_MP_CAPABLE: @@ -272,14 +273,17 @@ static void mptcp_parse_option(const struct sk_buff *skb, break; case MPTCPOPT_RM_ADDR: - if (opsize != TCPOLEN_MPTCP_RM_ADDR_BASE) + if (opsize < TCPOLEN_MPTCP_RM_ADDR_BASE + 1 || + opsize > TCPOLEN_MPTCP_RM_ADDR_BASE + MPTCP_RM_IDS_MAX) break; ptr++; mp_opt->rm_addr = 1; - mp_opt->rm_id = *ptr++; - pr_debug("RM_ADDR: id=%d", mp_opt->rm_id); + mp_opt->rm_list.nr = opsize - TCPOLEN_MPTCP_RM_ADDR_BASE; + for (i = 0; i < mp_opt->rm_list.nr; i++) + mp_opt->rm_list.ids[i] = *ptr++; + pr_debug("RM_ADDR: rm_list_nr=%d", mp_opt->rm_list.nr); break; case MPTCPOPT_MP_PRIO: @@ -1043,7 +1047,7 @@ void mptcp_incoming_options(struct sock *sk, struct sk_buff *skb) } if (mp_opt.rm_addr) { - mptcp_pm_rm_addr_received(msk, mp_opt.rm_id); + mptcp_pm_rm_addr_received(msk, &mp_opt.rm_list); mp_opt.rm_addr = 0; } diff --git a/net/mptcp/pm.c b/net/mptcp/pm.c index 9a91605885bb..7553f82076ca 100644 --- a/net/mptcp/pm.c +++ b/net/mptcp/pm.c @@ -205,17 +205,20 @@ void mptcp_pm_add_addr_send_ack(struct mptcp_sock *msk) mptcp_pm_schedule_work(msk, MPTCP_PM_ADD_ADDR_SEND_ACK); } -void mptcp_pm_rm_addr_received(struct mptcp_sock *msk, u8 rm_id) +void mptcp_pm_rm_addr_received(struct mptcp_sock *msk, + const struct mptcp_rm_list *rm_list) { struct mptcp_pm_data *pm = &msk->pm; + u8 i; - pr_debug("msk=%p remote_id=%d", msk, rm_id); + pr_debug("msk=%p remote_ids_nr=%d", msk, rm_list->nr); - mptcp_event_addr_removed(msk, rm_id); + for (i = 0; i < rm_list->nr; i++) + mptcp_event_addr_removed(msk, rm_list->ids[i]); spin_lock_bh(&pm->lock); mptcp_pm_schedule_work(msk, MPTCP_PM_RM_ADDR_RECEIVED); - pm->rm_id = rm_id; + pm->rm_id = rm_list->ids[0]; spin_unlock_bh(&pm->lock); } diff --git a/net/mptcp/protocol.h b/net/mptcp/protocol.h index ac15be7cf06b..d7daf7e0d5d2 100644 --- a/net/mptcp/protocol.h +++ b/net/mptcp/protocol.h @@ -142,7 +142,7 @@ struct mptcp_options_received { mpc_map:1, __unused:2; u8 addr_id; - u8 rm_id; + struct mptcp_rm_list rm_list; union { struct in_addr addr; #if IS_ENABLED(CONFIG_MPTCP_IPV6) @@ -648,7 +648,8 @@ void mptcp_pm_subflow_closed(struct mptcp_sock *msk, u8 id); void mptcp_pm_add_addr_received(struct mptcp_sock *msk, const struct mptcp_addr_info *addr); void mptcp_pm_add_addr_send_ack(struct mptcp_sock *msk); -void mptcp_pm_rm_addr_received(struct mptcp_sock *msk, u8 rm_id); +void mptcp_pm_rm_addr_received(struct mptcp_sock *msk, + const struct mptcp_rm_list *rm_list); void mptcp_pm_mp_prio_received(struct sock *sk, u8 bkup); int mptcp_pm_nl_mp_prio_send_ack(struct mptcp_sock *msk, struct mptcp_addr_info *addr, |