From fef6b7ecfbd465b7e27530e797c00b7384f78e44 Mon Sep 17 00:00:00 2001 From: Geliang Tang Date: Tue, 6 Apr 2021 17:15:59 -0700 Subject: mptcp: drop OPTION_MPTCP_ADD_ADDR6 Since the family field was added in struct mptcp_out_options, no need to use OPTION_MPTCP_ADD_ADDR6 to identify the IPv6 address. Drop it. Signed-off-by: Geliang Tang Signed-off-by: Mat Martineau Signed-off-by: David S. Miller --- net/mptcp/options.c | 15 +++++---------- net/mptcp/protocol.h | 9 ++++----- 2 files changed, 9 insertions(+), 15 deletions(-) (limited to 'net/mptcp') diff --git a/net/mptcp/options.c b/net/mptcp/options.c index 352c128337a7..3a4c939b3aff 100644 --- a/net/mptcp/options.c +++ b/net/mptcp/options.c @@ -652,8 +652,8 @@ static bool mptcp_established_options_add_addr(struct sock *sk, struct sk_buff * *size = len; if (drop_other_suboptions) *size -= opt_size; + opts->suboptions |= OPTION_MPTCP_ADD_ADDR; if (opts->addr.family == AF_INET) { - opts->suboptions |= OPTION_MPTCP_ADD_ADDR; if (!echo) { opts->ahmac = add_addr_generate_hmac(msk->local_key, msk->remote_key, @@ -664,7 +664,6 @@ static bool mptcp_established_options_add_addr(struct sock *sk, struct sk_buff * } #if IS_ENABLED(CONFIG_MPTCP_IPV6) else if (opts->addr.family == AF_INET6) { - opts->suboptions |= OPTION_MPTCP_ADD_ADDR6; if (!echo) { opts->ahmac = add_addr6_generate_hmac(msk->local_key, msk->remote_key, @@ -1198,16 +1197,12 @@ void mptcp_write_options(__be32 *ptr, const struct tcp_sock *tp, } mp_capable_done: - if ((OPTION_MPTCP_ADD_ADDR -#if IS_ENABLED(CONFIG_MPTCP_IPV6) - | OPTION_MPTCP_ADD_ADDR6 -#endif - ) & opts->suboptions) { + if (OPTION_MPTCP_ADD_ADDR & opts->suboptions) { u8 len = TCPOLEN_MPTCP_ADD_ADDR_BASE; u8 echo = MPTCP_ADDR_ECHO; #if IS_ENABLED(CONFIG_MPTCP_IPV6) - if (OPTION_MPTCP_ADD_ADDR6 & opts->suboptions) + if (opts->addr.family == AF_INET6) len = TCPOLEN_MPTCP_ADD_ADDR6_BASE; #endif @@ -1221,12 +1216,12 @@ mp_capable_done: *ptr++ = mptcp_option(MPTCPOPT_ADD_ADDR, len, echo, opts->addr.id); - if (OPTION_MPTCP_ADD_ADDR & opts->suboptions) { + if (opts->addr.family == AF_INET) { memcpy((u8 *)ptr, (u8 *)&opts->addr.addr.s_addr, 4); ptr += 1; } #if IS_ENABLED(CONFIG_MPTCP_IPV6) - else if (OPTION_MPTCP_ADD_ADDR6 & opts->suboptions) { + else if (opts->addr.family == AF_INET6) { memcpy((u8 *)ptr, opts->addr.addr6.s6_addr, 16); ptr += 4; } diff --git a/net/mptcp/protocol.h b/net/mptcp/protocol.h index 4890dbb9f710..7c5fd06ceaf2 100644 --- a/net/mptcp/protocol.h +++ b/net/mptcp/protocol.h @@ -22,11 +22,10 @@ #define OPTION_MPTCP_MPJ_SYNACK BIT(4) #define OPTION_MPTCP_MPJ_ACK BIT(5) #define OPTION_MPTCP_ADD_ADDR BIT(6) -#define OPTION_MPTCP_ADD_ADDR6 BIT(7) -#define OPTION_MPTCP_RM_ADDR BIT(8) -#define OPTION_MPTCP_FASTCLOSE BIT(9) -#define OPTION_MPTCP_PRIO BIT(10) -#define OPTION_MPTCP_RST BIT(11) +#define OPTION_MPTCP_RM_ADDR BIT(7) +#define OPTION_MPTCP_FASTCLOSE BIT(8) +#define OPTION_MPTCP_PRIO BIT(9) +#define OPTION_MPTCP_RST BIT(10) /* MPTCP option subtypes */ #define MPTCPOPT_MP_CAPABLE 0 -- cgit v1.2.3