diff options
Diffstat (limited to 'net/smc')
| -rw-r--r-- | net/smc/af_smc.c | 12 | ||||
| -rw-r--r-- | net/smc/smc_clc.h | 1 |
2 files changed, 10 insertions, 3 deletions
diff --git a/net/smc/af_smc.c b/net/smc/af_smc.c index e1b7b5bdb440..cb8bc77c75d6 100644 --- a/net/smc/af_smc.c +++ b/net/smc/af_smc.c @@ -1104,7 +1104,7 @@ static void smc_listen_decline(struct smc_sock *new_smc, int reason_code, } /* listen worker: check prefixes */ -static int smc_listen_rdma_check(struct smc_sock *new_smc, +static int smc_listen_prfx_check(struct smc_sock *new_smc, struct smc_clc_msg_proposal *pclc) { struct smc_clc_msg_proposal_prefix *pclc_prfx; @@ -1112,7 +1112,7 @@ static int smc_listen_rdma_check(struct smc_sock *new_smc, pclc_prfx = smc_clc_proposal_get_prefix(pclc); if (smc_clc_prfx_match(newclcsock, pclc_prfx)) - return SMC_CLC_DECL_CNFERR; + return SMC_CLC_DECL_DIFFPREFIX; return 0; } @@ -1272,6 +1272,13 @@ static void smc_listen_work(struct work_struct *work) return; } + /* check for matching IP prefix and subnet length */ + rc = smc_listen_prfx_check(new_smc, pclc); + if (rc) { + smc_listen_decline(new_smc, rc, 0); + return; + } + mutex_lock(&smc_server_lgr_pending); smc_close_init(new_smc); smc_rx_init(new_smc); @@ -1289,7 +1296,6 @@ static void smc_listen_work(struct work_struct *work) ((pclc->hdr.path != SMC_TYPE_R && pclc->hdr.path != SMC_TYPE_B) || smc_vlan_by_tcpsk(new_smc->clcsock, &vlan) || smc_check_rdma(new_smc, &ibdev, &ibport, vlan, NULL) || - smc_listen_rdma_check(new_smc, pclc) || smc_listen_rdma_init(new_smc, pclc, ibdev, ibport, &local_contact) || smc_listen_rdma_reg(new_smc, local_contact))) { diff --git a/net/smc/smc_clc.h b/net/smc/smc_clc.h index 6c94d54e7a67..f251bed2e7d5 100644 --- a/net/smc/smc_clc.h +++ b/net/smc/smc_clc.h @@ -38,6 +38,7 @@ #define SMC_CLC_DECL_MODEUNSUPP 0x03040000 /* smc modes do not match (R or D)*/ #define SMC_CLC_DECL_RMBE_EC 0x03050000 /* peer has eyecatcher in RMBE */ #define SMC_CLC_DECL_OPTUNSUPP 0x03060000 /* fastopen sockopt not supported */ +#define SMC_CLC_DECL_DIFFPREFIX 0x03070000 /* IP prefix / subnet mismatch */ #define SMC_CLC_DECL_SYNCERR 0x04000000 /* synchronization error */ #define SMC_CLC_DECL_PEERDECL 0x05000000 /* peer declined during handshake */ #define SMC_CLC_DECL_INTERR 0x09990000 /* internal error */ |