diff --git a/src/connection.c b/src/connection.c index 4ebbd42b9..0029b4dd2 100644 --- a/src/connection.c +++ b/src/connection.c @@ -1318,11 +1318,18 @@ int make_proxy_line_v2(char *buf, int buf_len, struct server *srv, struct connec ret = PP2_HDR_LEN_UNSPEC; } else { + /* Note: due to historic compatibility with V1 which required + * to send "PROXY" with local addresses for local connections, + * we can end up here with the remote in fact being our outgoing + * connection. We still want to send real addresses and LOCAL on + * it. + */ + hdr->ver_cmd = PP2_VERSION; + hdr->ver_cmd |= conn_is_back(remote) ? PP2_CMD_LOCAL : PP2_CMD_PROXY; /* IPv4 for both src and dst */ if (src->ss_family == AF_INET && dst->ss_family == AF_INET) { if (buf_len < PP2_HDR_LEN_INET) return 0; - hdr->ver_cmd = PP2_VERSION | PP2_CMD_PROXY; hdr->fam = PP2_FAM_INET | PP2_TRANS_STREAM; hdr->addr.ip4.src_addr = ((struct sockaddr_in *)src)->sin_addr.s_addr; hdr->addr.ip4.src_port = ((struct sockaddr_in *)src)->sin_port; @@ -1336,7 +1343,6 @@ int make_proxy_line_v2(char *buf, int buf_len, struct server *srv, struct connec if (buf_len < PP2_HDR_LEN_INET6) return 0; - hdr->ver_cmd = PP2_VERSION | PP2_CMD_PROXY; hdr->fam = PP2_FAM_INET6 | PP2_TRANS_STREAM; if (src->ss_family == AF_INET) { v4tov6(&tmp, &((struct sockaddr_in *)src)->sin_addr);