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pkt-nio and ObNetKeepAlive prevent tcp self connect

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496148326@qq.com 2023-06-01 11:41:49 +00:00 committed by ob-robot
parent 8684c5cd8b
commit e63e1eb45e
2 changed files with 36 additions and 1 deletions
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19
deps/oblib/src/rpc/obrpc/ob_net_keepalive.cpp vendored
View File

@ -415,6 +415,25 @@ client* create_client(rpc_server *rs)
c->status_ = CONNECT_OK;
_LOG_DEBUG("connect ok, addr: %s", addr_to_string(rs->svr_addr_));
}
if (OB_SUCC(ret)) {
if (AF_INET == addr.ss_family) {
struct sockaddr_in self_addr;
socklen_t len = sizeof(self_addr);
if (0 == getsockname(c->fd_, (struct sockaddr *)&self_addr, &len)) {
struct sockaddr_in *dst_addr = (struct sockaddr_in *)(&addr);
if (self_addr.sin_port == dst_addr->sin_port && self_addr.sin_addr.s_addr == dst_addr->sin_addr.s_addr) {
char str[INET_ADDRSTRLEN];
ret = OB_IO_ERROR;
_LOG_WARN("connection to %s failed, self connect self", inet_ntop(AF_INET, (const void*)(&addr), str, sizeof(str)));
}
} else {
ret = OB_IO_ERROR;
_LOG_WARN("getsockname failed: fd:%d, errno:%d", c->fd_, errno);
}
}
}
if (OB_FAIL(ret)) {
if (c->fd_ >= 0) close(c->fd_);
c = NULL;

18
deps/ussl-hook/ussl-hook.c vendored
View File

@ -59,9 +59,25 @@ int ussl_connect(int sockfd, const struct sockaddr *address, socklen_t address_l
ussl_clear_client_opt(sockfd);
}
} else {
if (AF_INET == address->sa_family) {
struct sockaddr_in self_addr;
socklen_t len = sizeof(self_addr);
if (0 == getsockname(sockfd, (struct sockaddr *)&self_addr, &len)) {
struct sockaddr_in *dst_addr = (struct sockaddr_in *)address;
if (self_addr.sin_port == dst_addr->sin_port && self_addr.sin_addr.s_addr == dst_addr->sin_addr.s_addr) {
ret = -1;
errno = EIO;
char str[INET_ADDRSTRLEN];
ussl_log_warn("connection to %s failed, self connect self", inet_ntop(AF_INET, (const void*)(address), str, sizeof(str)));
}
} else {
ret = -1;
ussl_log_warn("getsockname failed, fd:%d, error:%s", sockfd, strerror(errno));
}
}
/* if gid has been set and connect return success, we also let the ret to be -1 and errno to be
* EINPROGRESS */
if (sockfd >= 0 && sockfd < USSL_MAX_FD_NUM && global_gid_arr[sockfd] != UINT64_MAX) {
if (ret == 0 && sockfd >= 0 && sockfd < USSL_MAX_FD_NUM && global_gid_arr[sockfd] != UINT64_MAX) {
ret = -1;
errno = EINPROGRESS;
}