From nobody Thu May 16 02:25:05 2024 Delivered-To: importer@patchew.org Received-SPF: pass (zoho.com: domain of gnu.org designates 208.118.235.17 as permitted sender) client-ip=208.118.235.17; envelope-from=qemu-devel-bounces+importer=patchew.org@nongnu.org; helo=lists.gnu.org; Authentication-Results: mx.zohomail.com; spf=pass (zoho.com: domain of gnu.org designates 208.118.235.17 as permitted sender) smtp.mailfrom=qemu-devel-bounces+importer=patchew.org@nongnu.org Return-Path: Received: from lists.gnu.org (lists.gnu.org [208.118.235.17]) by mx.zohomail.com with SMTPS id 1499330998087988.4683670711138; Thu, 6 Jul 2017 01:49:58 -0700 (PDT) Received: from localhost ([::1]:50012 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1dT2Tz-0005Tk-B4 for importer@patchew.org; Thu, 06 Jul 2017 04:49:55 -0400 Received: from eggs.gnu.org ([2001:4830:134:3::10]:40057) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1dT2SQ-0004Q2-FL for qemu-devel@nongnu.org; Thu, 06 Jul 2017 04:48:19 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1dT2SM-0001Bd-Hj for qemu-devel@nongnu.org; Thu, 06 Jul 2017 04:48:18 -0400 Received: from [59.151.112.132] (port=4901 helo=heian.cn.fujitsu.com) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1dT2SM-0001AZ-61 for qemu-devel@nongnu.org; Thu, 06 Jul 2017 04:48:14 -0400 Received: from unknown (HELO cn.fujitsu.com) ([10.167.33.5]) by heian.cn.fujitsu.com with ESMTP; 06 Jul 2017 16:48:09 +0800 Received: from G08CNEXCHPEKD02.g08.fujitsu.local (unknown [10.167.33.83]) by cn.fujitsu.com (Postfix) with ESMTP id 57B0846B4C74; Thu, 6 Jul 2017 16:48:08 +0800 (CST) Received: from maozy.g08.fujitsu.local (10.167.225.76) by G08CNEXCHPEKD02.g08.fujitsu.local (10.167.33.89) with Microsoft SMTP Server (TLS) id 14.3.319.2; Thu, 6 Jul 2017 16:48:06 +0800 X-IronPort-AV: E=Sophos;i="5.22,518,1449504000"; d="scan'208";a="20939102" From: Mao Zhongyi To: Date: Thu, 6 Jul 2017 16:47:42 +0800 Message-ID: X-Mailer: git-send-email 2.9.4 In-Reply-To: References: MIME-Version: 1.0 X-Originating-IP: [10.167.225.76] X-yoursite-MailScanner-ID: 57B0846B4C74.A25E0 X-yoursite-MailScanner: Found to be clean X-yoursite-MailScanner-From: maozy.fnst@cn.fujitsu.com X-detected-operating-system: by eggs.gnu.org: Genre and OS details not recognized. X-Received-From: 59.151.112.132 Subject: [Qemu-devel] [PATCH v8 1/4] net/socket: Don't treat odd socket type as SOCK_STREAM X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.21 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: jasowang@redhat.com, armbru@redhat.com Errors-To: qemu-devel-bounces+importer=patchew.org@nongnu.org Sender: "Qemu-devel" X-ZohoMail: RSF_0 Z_629925259 SPT_0 Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset="utf-8" In net_socket_fd_init(), the 'default' case is odd: it warns, then continues as if the socket type was SOCK_STREAM. The comment explains "this could be a eg. a pty", but that makes no sense. If @fd really was a pty, getsockopt() would fail with ENOTSOCK. If @fd was a socket, but neither SOCK_DGRAM nor SOCK_STREAM. It should not be treated as if it was SOCK_STREAM. Turn this case into an Error. If there is a genuine reason to support something like SOCK_RAW, it should be explicitly handled. Cc: jasowang@redhat.com Cc: armbru@redhat.com Cc: berrange@redhat.com Cc: armbru@redhat.com Cc: eblake@redhat.com Suggested-by: Markus Armbruster Suggested-by: Daniel P. Berrange Signed-off-by: Mao Zhongyi Reviewed-by: Markus Armbruster --- net/socket.c | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) diff --git a/net/socket.c b/net/socket.c index dcae1ae..7d05e70 100644 --- a/net/socket.c +++ b/net/socket.c @@ -449,9 +449,9 @@ static NetSocketState *net_socket_fd_init(NetClientStat= e *peer, case SOCK_STREAM: return net_socket_fd_init_stream(peer, model, name, fd, is_connect= ed); default: - /* who knows ... this could be a eg. a pty, do warn and continue a= s stream */ - fprintf(stderr, "qemu: warning: socket type=3D%d for fd=3D%d is no= t SOCK_DGRAM or SOCK_STREAM\n", so_type, fd); - return net_socket_fd_init_stream(peer, model, name, fd, is_connect= ed); + error_report("socket type=3D%d for fd=3D%d must be either" + " SOCK_DGRAM or SOCK_STREAM", so_type, fd); + closesocket(fd); } return NULL; } --=20 2.9.4 From nobody Thu May 16 02:25:05 2024 Delivered-To: importer@patchew.org Received-SPF: pass (zoho.com: domain of gnu.org designates 208.118.235.17 as permitted sender) client-ip=208.118.235.17; envelope-from=qemu-devel-bounces+importer=patchew.org@nongnu.org; helo=lists.gnu.org; Authentication-Results: mx.zohomail.com; spf=pass (zoho.com: domain of gnu.org designates 208.118.235.17 as permitted sender) smtp.mailfrom=qemu-devel-bounces+importer=patchew.org@nongnu.org Return-Path: Received: from lists.gnu.org (lists.gnu.org [208.118.235.17]) by mx.zohomail.com with SMTPS id 1499331120715831.8653501145272; Thu, 6 Jul 2017 01:52:00 -0700 (PDT) Received: from localhost ([::1]:50064 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1dT2Vz-0007cW-8U for importer@patchew.org; Thu, 06 Jul 2017 04:51:59 -0400 Received: from eggs.gnu.org ([2001:4830:134:3::10]:40056) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1dT2SQ-0004Q0-F8 for qemu-devel@nongnu.org; Thu, 06 Jul 2017 04:48:19 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1dT2SO-0001CM-7R for qemu-devel@nongnu.org; Thu, 06 Jul 2017 04:48:18 -0400 Received: from [59.151.112.132] (port=4901 helo=heian.cn.fujitsu.com) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1dT2SN-0001AZ-A2 for qemu-devel@nongnu.org; Thu, 06 Jul 2017 04:48:16 -0400 Received: from unknown (HELO cn.fujitsu.com) ([10.167.33.5]) by heian.cn.fujitsu.com with ESMTP; 06 Jul 2017 16:48:09 +0800 Received: from G08CNEXCHPEKD02.g08.fujitsu.local (unknown [10.167.33.83]) by cn.fujitsu.com (Postfix) with ESMTP id 43B2346B4C75; Thu, 6 Jul 2017 16:48:09 +0800 (CST) Received: from maozy.g08.fujitsu.local (10.167.225.76) by G08CNEXCHPEKD02.g08.fujitsu.local (10.167.33.89) with Microsoft SMTP Server (TLS) id 14.3.319.2; Thu, 6 Jul 2017 16:48:07 +0800 X-IronPort-AV: E=Sophos;i="5.22,518,1449504000"; d="scan'208";a="20939105" From: Mao Zhongyi To: Date: Thu, 6 Jul 2017 16:47:43 +0800 Message-ID: X-Mailer: git-send-email 2.9.4 In-Reply-To: References: MIME-Version: 1.0 X-Originating-IP: [10.167.225.76] X-yoursite-MailScanner-ID: 43B2346B4C75.A2A31 X-yoursite-MailScanner: Found to be clean X-yoursite-MailScanner-From: maozy.fnst@cn.fujitsu.com X-detected-operating-system: by eggs.gnu.org: Genre and OS details not recognized. X-Received-From: 59.151.112.132 Subject: [Qemu-devel] [PATCH v8 2/4] net/socket: Convert several helper functions to Error X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.21 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: jasowang@redhat.com, armbru@redhat.com Errors-To: qemu-devel-bounces+importer=patchew.org@nongnu.org Sender: "Qemu-devel" X-ZohoMail: RSF_0 Z_629925259 SPT_0 Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset="utf-8" Currently, net_socket_mcast_create(), net_socket_fd_init_dgram() and net_socket_fd_init() use the function such as fprintf(), perror() to report an error message. Now, convert these functions to Error. Cc: jasowang@redhat.com Cc: armbru@redhat.com Cc: berrange@redhat.com Signed-off-by: Mao Zhongyi Reviewed-by: Daniel P. Berrange Reviewed-by: Markus Armbruster --- net/socket.c | 80 ++++++++++++++++++++++++++++++++++++--------------------= ---- 1 file changed, 48 insertions(+), 32 deletions(-) diff --git a/net/socket.c b/net/socket.c index 7d05e70..3dd4459 100644 --- a/net/socket.c +++ b/net/socket.c @@ -209,7 +209,9 @@ static void net_socket_send_dgram(void *opaque) } } =20 -static int net_socket_mcast_create(struct sockaddr_in *mcastaddr, struct i= n_addr *localaddr) +static int net_socket_mcast_create(struct sockaddr_in *mcastaddr, + struct in_addr *localaddr, + Error **errp) { struct ip_mreq imr; int fd; @@ -221,16 +223,16 @@ static int net_socket_mcast_create(struct sockaddr_in= *mcastaddr, struct in_addr #endif =20 if (!IN_MULTICAST(ntohl(mcastaddr->sin_addr.s_addr))) { - fprintf(stderr, "qemu: error: specified mcastaddr \"%s\" (0x%08x) " - "does not contain a multicast address\n", - inet_ntoa(mcastaddr->sin_addr), - (int)ntohl(mcastaddr->sin_addr.s_addr)); + error_setg(errp, "specified mcastaddr %s (0x%08x) " + "does not contain a multicast address", + inet_ntoa(mcastaddr->sin_addr), + (int)ntohl(mcastaddr->sin_addr.s_addr)); return -1; - } + fd =3D qemu_socket(PF_INET, SOCK_DGRAM, 0); if (fd < 0) { - perror("socket(PF_INET, SOCK_DGRAM)"); + error_setg_errno(errp, errno, "can't create datagram socket"); return -1; } =20 @@ -242,13 +244,15 @@ static int net_socket_mcast_create(struct sockaddr_in= *mcastaddr, struct in_addr val =3D 1; ret =3D qemu_setsockopt(fd, SOL_SOCKET, SO_REUSEADDR, &val, sizeof(val= )); if (ret < 0) { - perror("setsockopt(SOL_SOCKET, SO_REUSEADDR)"); + error_setg_errno(errp, errno, + "can't set socket option SO_REUSEADDR"); goto fail; } =20 ret =3D bind(fd, (struct sockaddr *)mcastaddr, sizeof(*mcastaddr)); if (ret < 0) { - perror("bind"); + error_setg_errno(errp, errno, "can't bind ip=3D%s to socket", + inet_ntoa(mcastaddr->sin_addr)); goto fail; } =20 @@ -263,7 +267,9 @@ static int net_socket_mcast_create(struct sockaddr_in *= mcastaddr, struct in_addr ret =3D qemu_setsockopt(fd, IPPROTO_IP, IP_ADD_MEMBERSHIP, &imr, sizeof(struct ip_mreq)); if (ret < 0) { - perror("setsockopt(IP_ADD_MEMBERSHIP)"); + error_setg_errno(errp, errno, + "can't add socket to multicast group %s", + inet_ntoa(imr.imr_multiaddr)); goto fail; } =20 @@ -272,7 +278,8 @@ static int net_socket_mcast_create(struct sockaddr_in *= mcastaddr, struct in_addr ret =3D qemu_setsockopt(fd, IPPROTO_IP, IP_MULTICAST_LOOP, &loop, sizeof(loop)); if (ret < 0) { - perror("setsockopt(SOL_IP, IP_MULTICAST_LOOP)"); + error_setg_errno(errp, errno, + "can't force multicast message to loopback"); goto fail; } =20 @@ -281,7 +288,8 @@ static int net_socket_mcast_create(struct sockaddr_in *= mcastaddr, struct in_addr ret =3D qemu_setsockopt(fd, IPPROTO_IP, IP_MULTICAST_IF, localaddr, sizeof(*localaddr)); if (ret < 0) { - perror("setsockopt(IP_MULTICAST_IF)"); + error_setg_errno(errp, errno, + "can't set the default network send interface= "); goto fail; } } @@ -320,7 +328,8 @@ static NetClientInfo net_dgram_socket_info =3D { static NetSocketState *net_socket_fd_init_dgram(NetClientState *peer, const char *model, const char *name, - int fd, int is_connected) + int fd, int is_connected, + Error **errp) { struct sockaddr_in saddr; int newfd; @@ -337,14 +346,12 @@ static NetSocketState *net_socket_fd_init_dgram(NetCl= ientState *peer, if (getsockname(fd, (struct sockaddr *) &saddr, &saddr_len) =3D=3D= 0) { /* must be bound */ if (saddr.sin_addr.s_addr =3D=3D 0) { - fprintf(stderr, "qemu: error: init_dgram: fd=3D%d unbound,= " - "cannot setup multicast dst addr\n", fd); + error_setg(errp, "can't setup multicast destination addres= s"); goto err; } /* clone dgram socket */ - newfd =3D net_socket_mcast_create(&saddr, NULL); + newfd =3D net_socket_mcast_create(&saddr, NULL, errp); if (newfd < 0) { - /* error already reported by net_socket_mcast_create() */ goto err; } /* clone newfd to fd, close newfd */ @@ -352,9 +359,7 @@ static NetSocketState *net_socket_fd_init_dgram(NetClie= ntState *peer, close(newfd); =20 } else { - fprintf(stderr, - "qemu: error: init_dgram: fd=3D%d failed getsockname()= : %s\n", - fd, strerror(errno)); + error_setg_errno(errp, errno, "can't get socket name"); goto err; } } @@ -432,20 +437,21 @@ static NetSocketState *net_socket_fd_init_stream(NetC= lientState *peer, =20 static NetSocketState *net_socket_fd_init(NetClientState *peer, const char *model, const char *n= ame, - int fd, int is_connected) + int fd, int is_connected, + Error **errp) { int so_type =3D -1, optlen=3Dsizeof(so_type); =20 if(getsockopt(fd, SOL_SOCKET, SO_TYPE, (char *)&so_type, (socklen_t *)&optlen)< 0) { - fprintf(stderr, "qemu: error: getsockopt(SO_TYPE) for fd=3D%d fail= ed\n", - fd); + error_setg(errp, "can't get socket option SO_TYPE"); closesocket(fd); return NULL; } switch(so_type) { case SOCK_DGRAM: - return net_socket_fd_init_dgram(peer, model, name, fd, is_connecte= d); + return net_socket_fd_init_dgram(peer, model, name, fd, is_connecte= d, + errp); case SOCK_STREAM: return net_socket_fd_init_stream(peer, model, name, fd, is_connect= ed); default: @@ -536,6 +542,7 @@ static int net_socket_connect_init(NetClientState *peer, NetSocketState *s; int fd, connected, ret; struct sockaddr_in saddr; + Error *err =3D NULL; =20 if (parse_host_port(&saddr, host_str) < 0) return -1; @@ -567,9 +574,11 @@ static int net_socket_connect_init(NetClientState *pee= r, break; } } - s =3D net_socket_fd_init(peer, model, name, fd, connected); - if (!s) + s =3D net_socket_fd_init(peer, model, name, fd, connected, &err); + if (!s) { + error_report_err(err); return -1; + } snprintf(s->nc.info_str, sizeof(s->nc.info_str), "socket: connect to %s:%d", inet_ntoa(saddr.sin_addr), ntohs(saddr.sin_port)); @@ -586,6 +595,7 @@ static int net_socket_mcast_init(NetClientState *peer, int fd; struct sockaddr_in saddr; struct in_addr localaddr, *param_localaddr; + Error *err =3D NULL; =20 if (parse_host_port(&saddr, host_str) < 0) return -1; @@ -598,13 +608,17 @@ static int net_socket_mcast_init(NetClientState *peer, param_localaddr =3D NULL; } =20 - fd =3D net_socket_mcast_create(&saddr, param_localaddr); - if (fd < 0) + fd =3D net_socket_mcast_create(&saddr, param_localaddr, &err); + if (fd < 0) { + error_report_err(err); return -1; + } =20 - s =3D net_socket_fd_init(peer, model, name, fd, 0); - if (!s) + s =3D net_socket_fd_init(peer, model, name, fd, 0, &err); + if (!s) { + error_report_err(err); return -1; + } =20 s->dgram_dst =3D saddr; =20 @@ -624,6 +638,7 @@ static int net_socket_udp_init(NetClientState *peer, NetSocketState *s; int fd, ret; struct sockaddr_in laddr, raddr; + Error *err =3D NULL; =20 if (parse_host_port(&laddr, lhost) < 0) { return -1; @@ -652,8 +667,9 @@ static int net_socket_udp_init(NetClientState *peer, } qemu_set_nonblock(fd); =20 - s =3D net_socket_fd_init(peer, model, name, fd, 0); + s =3D net_socket_fd_init(peer, model, name, fd, 0, &err); if (!s) { + error_report_err(err); return -1; } =20 @@ -696,7 +712,7 @@ int net_init_socket(const Netdev *netdev, const char *n= ame, return -1; } qemu_set_nonblock(fd); - if (!net_socket_fd_init(peer, "socket", name, fd, 1)) { + if (!net_socket_fd_init(peer, "socket", name, fd, 1, errp)) { return -1; } return 0; --=20 2.9.4 From nobody Thu May 16 02:25:05 2024 Delivered-To: importer@patchew.org Received-SPF: pass (zoho.com: domain of gnu.org designates 208.118.235.17 as permitted sender) client-ip=208.118.235.17; envelope-from=qemu-devel-bounces+importer=patchew.org@nongnu.org; helo=lists.gnu.org; Authentication-Results: mx.zohomail.com; spf=pass (zoho.com: domain of gnu.org designates 208.118.235.17 as permitted sender) smtp.mailfrom=qemu-devel-bounces+importer=patchew.org@nongnu.org Return-Path: Received: from lists.gnu.org (lists.gnu.org [208.118.235.17]) by mx.zohomail.com with SMTPS id 1499331005326883.4096660912584; 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X-Received-From: 59.151.112.132 Subject: [Qemu-devel] [PATCH v8 3/4] net/net: Convert parse_host_port() to Error X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.21 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: jasowang@redhat.com, armbru@redhat.com, kraxel@redhat.com, pbonzini@redhat.com Errors-To: qemu-devel-bounces+importer=patchew.org@nongnu.org Sender: "Qemu-devel" X-ZohoMail: RSF_0 Z_629925259 SPT_0 Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset="utf-8" Cc: berrange@redhat.com Cc: kraxel@redhat.com Cc: pbonzini@redhat.com Cc: jasowang@redhat.com Cc: armbru@redhat.com Cc: eblake@redhat.com Signed-off-by: Mao Zhongyi Reviewed-by: Markus Armbruster --- include/qemu/sockets.h | 3 ++- net/net.c | 22 +++++++++++++++++----- net/socket.c | 19 ++++++++++++++----- 3 files changed, 33 insertions(+), 11 deletions(-) diff --git a/include/qemu/sockets.h b/include/qemu/sockets.h index 5c326db..78e2b30 100644 --- a/include/qemu/sockets.h +++ b/include/qemu/sockets.h @@ -53,7 +53,8 @@ void socket_listen_cleanup(int fd, Error **errp); int socket_dgram(SocketAddress *remote, SocketAddress *local, Error **errp= ); =20 /* Old, ipv4 only bits. Don't use for new code. */ -int parse_host_port(struct sockaddr_in *saddr, const char *str); +int parse_host_port(struct sockaddr_in *saddr, const char *str, + Error **errp); int socket_init(void); =20 /** diff --git a/net/net.c b/net/net.c index 6235aab..77b6deb 100644 --- a/net/net.c +++ b/net/net.c @@ -100,7 +100,8 @@ static int get_str_sep(char *buf, int buf_size, const c= har **pp, int sep) return 0; } =20 -int parse_host_port(struct sockaddr_in *saddr, const char *str) +int parse_host_port(struct sockaddr_in *saddr, const char *str, + Error **errp) { char buf[512]; struct hostent *he; @@ -108,24 +109,35 @@ int parse_host_port(struct sockaddr_in *saddr, const = char *str) int port; =20 p =3D str; - if (get_str_sep(buf, sizeof(buf), &p, ':') < 0) + if (get_str_sep(buf, sizeof(buf), &p, ':') < 0) { + error_setg(errp, "host address '%s' doesn't contain ':' " + "separating host from port", str); return -1; + } saddr->sin_family =3D AF_INET; if (buf[0] =3D=3D '\0') { saddr->sin_addr.s_addr =3D 0; } else { if (qemu_isdigit(buf[0])) { - if (!inet_aton(buf, &saddr->sin_addr)) + if (!inet_aton(buf, &saddr->sin_addr)) { + error_setg(errp, "host address '%s' is not a valid " + "IPv4 address", buf); return -1; + } } else { - if ((he =3D gethostbyname(buf)) =3D=3D NULL) + he =3D gethostbyname(buf); + if (he =3D=3D NULL) { + error_setg(errp, "can't resolve host address '%s'", buf); return - 1; + } saddr->sin_addr =3D *(struct in_addr *)he->h_addr; } } port =3D strtol(p, (char **)&r, 0); - if (r =3D=3D p) + if (r =3D=3D p) { + error_setg(errp, "port number '%s' is invalid", p); return -1; + } saddr->sin_port =3D htons(port); return 0; } diff --git a/net/socket.c b/net/socket.c index 3dd4459..1d4c515 100644 --- a/net/socket.c +++ b/net/socket.c @@ -497,9 +497,12 @@ static int net_socket_listen_init(NetClientState *peer, NetSocketState *s; struct sockaddr_in saddr; int fd, ret; + Error *err =3D NULL; =20 - if (parse_host_port(&saddr, host_str) < 0) + if (parse_host_port(&saddr, host_str, &err) < 0) { + error_report_err(err); return -1; + } =20 fd =3D qemu_socket(PF_INET, SOCK_STREAM, 0); if (fd < 0) { @@ -544,8 +547,10 @@ static int net_socket_connect_init(NetClientState *pee= r, struct sockaddr_in saddr; Error *err =3D NULL; =20 - if (parse_host_port(&saddr, host_str) < 0) + if (parse_host_port(&saddr, host_str, &err) < 0) { + error_report_err(err); return -1; + } =20 fd =3D qemu_socket(PF_INET, SOCK_STREAM, 0); if (fd < 0) { @@ -597,8 +602,10 @@ static int net_socket_mcast_init(NetClientState *peer, struct in_addr localaddr, *param_localaddr; Error *err =3D NULL; =20 - if (parse_host_port(&saddr, host_str) < 0) + if (parse_host_port(&saddr, host_str, &err) < 0) { + error_report_err(err); return -1; + } =20 if (localaddr_str !=3D NULL) { if (inet_aton(localaddr_str, &localaddr) =3D=3D 0) @@ -640,11 +647,13 @@ static int net_socket_udp_init(NetClientState *peer, struct sockaddr_in laddr, raddr; Error *err =3D NULL; =20 - if (parse_host_port(&laddr, lhost) < 0) { + if (parse_host_port(&laddr, lhost, &err) < 0) { + error_report_err(err); return -1; } =20 - if (parse_host_port(&raddr, rhost) < 0) { + if (parse_host_port(&raddr, rhost, &err) < 0) { + error_report_err(err); return -1; } =20 --=20 2.9.4 From nobody Thu May 16 02:25:05 2024 Delivered-To: importer@patchew.org Received-SPF: pass (zoho.com: domain of gnu.org designates 208.118.235.17 as permitted sender) client-ip=208.118.235.17; envelope-from=qemu-devel-bounces+importer=patchew.org@nongnu.org; helo=lists.gnu.org; Authentication-Results: mx.zohomail.com; spf=pass (zoho.com: domain of gnu.org designates 208.118.235.17 as permitted sender) smtp.mailfrom=qemu-devel-bounces+importer=patchew.org@nongnu.org Return-Path: Received: from lists.gnu.org (lists.gnu.org [208.118.235.17]) by mx.zohomail.com with SMTPS id 1499331204676383.62303804534497; Thu, 6 Jul 2017 01:53:24 -0700 (PDT) Received: from localhost ([::1]:50078 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1dT2XL-0008W3-B6 for importer@patchew.org; Thu, 06 Jul 2017 04:53:23 -0400 Received: from eggs.gnu.org ([2001:4830:134:3::10]:40083) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1dT2SR-0004Qc-H9 for qemu-devel@nongnu.org; Thu, 06 Jul 2017 04:48:21 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1dT2SQ-0001Cm-4s for qemu-devel@nongnu.org; Thu, 06 Jul 2017 04:48:19 -0400 Received: from [59.151.112.132] (port=4057 helo=heian.cn.fujitsu.com) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1dT2SO-0001Bs-4B for qemu-devel@nongnu.org; Thu, 06 Jul 2017 04:48:18 -0400 Received: from unknown (HELO cn.fujitsu.com) ([10.167.33.5]) by heian.cn.fujitsu.com with ESMTP; 06 Jul 2017 16:48:16 +0800 Received: from G08CNEXCHPEKD02.g08.fujitsu.local (unknown [10.167.33.83]) by cn.fujitsu.com (Postfix) with ESMTP id A070C46B4C63; Thu, 6 Jul 2017 16:48:12 +0800 (CST) Received: from maozy.g08.fujitsu.local (10.167.225.76) by G08CNEXCHPEKD02.g08.fujitsu.local (10.167.33.89) with Microsoft SMTP Server (TLS) id 14.3.319.2; Thu, 6 Jul 2017 16:48:10 +0800 X-IronPort-AV: E=Sophos;i="5.22,518,1449504000"; d="scan'208";a="20939112" From: Mao Zhongyi To: Date: Thu, 6 Jul 2017 16:47:45 +0800 Message-ID: <177fa6990d18735d62730f708eb2dc741c70828a.1499329674.git.maozy.fnst@cn.fujitsu.com> X-Mailer: git-send-email 2.9.4 In-Reply-To: References: MIME-Version: 1.0 X-Originating-IP: [10.167.225.76] X-yoursite-MailScanner-ID: A070C46B4C63.A3255 X-yoursite-MailScanner: Found to be clean X-yoursite-MailScanner-From: maozy.fnst@cn.fujitsu.com X-detected-operating-system: by eggs.gnu.org: Genre and OS details not recognized. X-Received-From: 59.151.112.132 Subject: [Qemu-devel] [PATCH v8 4/4] net/socket: Improve -net socket error reporting X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.21 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: jasowang@redhat.com, armbru@redhat.com Errors-To: qemu-devel-bounces+importer=patchew.org@nongnu.org Sender: "Qemu-devel" X-ZohoMail: RSF_0 Z_629925259 SPT_0 Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset="utf-8" When -net socket fails, it first reports a specific error, then a generic one, like this: $ qemu-system-x86_64 -net socket, qemu-system-x86_64: -net socket: exactly one of fd=3D, listen=3D, conne= ct=3D, mcast=3D or udp=3D is required qemu-system-x86_64: -net socket: Device 'socket' could not be initializ= ed Convert net_socket_*_init() to Error to get rid of the superfluous second error message. After the patch, the effect like this: $ qemu-system-x86_64 -net socket, qemu-system-x86_64: -net socket: exactly one of fd=3D, listen=3D, conne= ct=3D, mcast=3D or udp=3D is required This also fixes a few silent failures to report an error. Cc: jasowang@redhat.com Cc: armbru@redhat.com Cc: berrange@redhat.com Signed-off-by: Mao Zhongyi Reviewed-by: Markus Armbruster --- net/socket.c | 92 +++++++++++++++++++++++++++++---------------------------= ---- 1 file changed, 44 insertions(+), 48 deletions(-) diff --git a/net/socket.c b/net/socket.c index 1d4c515..ad1582e 100644 --- a/net/socket.c +++ b/net/socket.c @@ -491,22 +491,21 @@ static void net_socket_accept(void *opaque) static int net_socket_listen_init(NetClientState *peer, const char *model, const char *name, - const char *host_str) + const char *host_str, + Error **errp) { NetClientState *nc; NetSocketState *s; struct sockaddr_in saddr; int fd, ret; - Error *err =3D NULL; =20 - if (parse_host_port(&saddr, host_str, &err) < 0) { - error_report_err(err); + if (parse_host_port(&saddr, host_str, errp) < 0) { return -1; } =20 fd =3D qemu_socket(PF_INET, SOCK_STREAM, 0); if (fd < 0) { - perror("socket"); + error_setg_errno(errp, errno, "can't create stream socket"); return -1; } qemu_set_nonblock(fd); @@ -515,13 +514,14 @@ static int net_socket_listen_init(NetClientState *pee= r, =20 ret =3D bind(fd, (struct sockaddr *)&saddr, sizeof(saddr)); if (ret < 0) { - perror("bind"); + error_setg_errno(errp, errno, "can't bind ip=3D%s to socket", + inet_ntoa(saddr.sin_addr)); closesocket(fd); return -1; } ret =3D listen(fd, 0); if (ret < 0) { - perror("listen"); + error_setg_errno(errp, errno, "can't listen on socket"); closesocket(fd); return -1; } @@ -540,21 +540,20 @@ static int net_socket_listen_init(NetClientState *pee= r, static int net_socket_connect_init(NetClientState *peer, const char *model, const char *name, - const char *host_str) + const char *host_str, + Error **errp) { NetSocketState *s; int fd, connected, ret; struct sockaddr_in saddr; - Error *err =3D NULL; =20 - if (parse_host_port(&saddr, host_str, &err) < 0) { - error_report_err(err); + if (parse_host_port(&saddr, host_str, errp) < 0) { return -1; } =20 fd =3D qemu_socket(PF_INET, SOCK_STREAM, 0); if (fd < 0) { - perror("socket"); + error_setg_errno(errp, errno, "can't create stream socket"); return -1; } qemu_set_nonblock(fd); @@ -570,7 +569,7 @@ static int net_socket_connect_init(NetClientState *peer, errno =3D=3D EINVAL) { break; } else { - perror("connect"); + error_setg_errno(errp, errno, "can't connect socket"); closesocket(fd); return -1; } @@ -579,9 +578,8 @@ static int net_socket_connect_init(NetClientState *peer, break; } } - s =3D net_socket_fd_init(peer, model, name, fd, connected, &err); + s =3D net_socket_fd_init(peer, model, name, fd, connected, errp); if (!s) { - error_report_err(err); return -1; } snprintf(s->nc.info_str, sizeof(s->nc.info_str), @@ -594,36 +592,36 @@ static int net_socket_mcast_init(NetClientState *peer, const char *model, const char *name, const char *host_str, - const char *localaddr_str) + const char *localaddr_str, + Error **errp) { NetSocketState *s; int fd; struct sockaddr_in saddr; struct in_addr localaddr, *param_localaddr; - Error *err =3D NULL; =20 - if (parse_host_port(&saddr, host_str, &err) < 0) { - error_report_err(err); + if (parse_host_port(&saddr, host_str, errp) < 0) { return -1; } =20 if (localaddr_str !=3D NULL) { - if (inet_aton(localaddr_str, &localaddr) =3D=3D 0) + if (inet_aton(localaddr_str, &localaddr) =3D=3D 0) { + error_setg(errp, "localaddr '%s' is not a valid IPv4 address", + localaddr_str); return -1; + } param_localaddr =3D &localaddr; } else { param_localaddr =3D NULL; } =20 - fd =3D net_socket_mcast_create(&saddr, param_localaddr, &err); + fd =3D net_socket_mcast_create(&saddr, param_localaddr, errp); if (fd < 0) { - error_report_err(err); return -1; } =20 - s =3D net_socket_fd_init(peer, model, name, fd, 0, &err); + s =3D net_socket_fd_init(peer, model, name, fd, 0, errp); if (!s) { - error_report_err(err); return -1; } =20 @@ -640,45 +638,45 @@ static int net_socket_udp_init(NetClientState *peer, const char *model, const char *name, const char *rhost, - const char *lhost) + const char *lhost, + Error **errp) { NetSocketState *s; int fd, ret; struct sockaddr_in laddr, raddr; - Error *err =3D NULL; =20 - if (parse_host_port(&laddr, lhost, &err) < 0) { - error_report_err(err); + if (parse_host_port(&laddr, lhost, errp) < 0) { return -1; } =20 - if (parse_host_port(&raddr, rhost, &err) < 0) { - error_report_err(err); + if (parse_host_port(&raddr, rhost, errp) < 0) { return -1; } =20 fd =3D qemu_socket(PF_INET, SOCK_DGRAM, 0); if (fd < 0) { - perror("socket(PF_INET, SOCK_DGRAM)"); + error_setg_errno(errp, errno, "can't create datagram socket"); return -1; } =20 ret =3D socket_set_fast_reuse(fd); if (ret < 0) { + error_setg_errno(errp, errno, + "can't set socket option SO_REUSEADDR"); closesocket(fd); return -1; } ret =3D bind(fd, (struct sockaddr *)&laddr, sizeof(laddr)); if (ret < 0) { - perror("bind"); + error_setg_errno(errp, errno, "can't bind ip=3D%s to socket", + inet_ntoa(laddr.sin_addr)); closesocket(fd); return -1; } qemu_set_nonblock(fd); =20 - s =3D net_socket_fd_init(peer, model, name, fd, 0, &err); + s =3D net_socket_fd_init(peer, model, name, fd, 0, errp); if (!s) { - error_report_err(err); return -1; } =20 @@ -693,8 +691,6 @@ static int net_socket_udp_init(NetClientState *peer, int net_init_socket(const Netdev *netdev, const char *name, NetClientState *peer, Error **errp) { - /* FIXME error_setg(errp, ...) on failure */ - Error *err =3D NULL; const NetdevSocketOptions *sock; =20 assert(netdev->type =3D=3D NET_CLIENT_DRIVER_SOCKET); @@ -702,22 +698,21 @@ int net_init_socket(const Netdev *netdev, const char = *name, =20 if (sock->has_fd + sock->has_listen + sock->has_connect + sock->has_mc= ast + sock->has_udp !=3D 1) { - error_report("exactly one of fd=3D, listen=3D, connect=3D, mcast= =3D or udp=3D" - " is required"); + error_setg(errp, "exactly one of fd=3D, listen=3D, connect=3D, mca= st=3D or udp=3D" + " is required"); return -1; } =20 if (sock->has_localaddr && !sock->has_mcast && !sock->has_udp) { - error_report("localaddr=3D is only valid with mcast=3D or udp=3D"); + error_setg(errp, "localaddr=3D is only valid with mcast=3D or udp= =3D"); return -1; } =20 if (sock->has_fd) { int fd; =20 - fd =3D monitor_fd_param(cur_mon, sock->fd, &err); + fd =3D monitor_fd_param(cur_mon, sock->fd, errp); if (fd =3D=3D -1) { - error_report_err(err); return -1; } qemu_set_nonblock(fd); @@ -728,15 +723,16 @@ int net_init_socket(const Netdev *netdev, const char = *name, } =20 if (sock->has_listen) { - if (net_socket_listen_init(peer, "socket", name, sock->listen) =3D= =3D -1) { + if (net_socket_listen_init(peer, "socket", name, sock->listen, err= p) + < 0) { return -1; } return 0; } =20 if (sock->has_connect) { - if (net_socket_connect_init(peer, "socket", name, sock->connect) = =3D=3D - -1) { + if (net_socket_connect_init(peer, "socket", name, sock->connect, e= rrp) + < 0) { return -1; } return 0; @@ -746,7 +742,7 @@ int net_init_socket(const Netdev *netdev, const char *n= ame, /* if sock->localaddr is missing, it has been initialized to "all = bits * zero" */ if (net_socket_mcast_init(peer, "socket", name, sock->mcast, - sock->localaddr) =3D=3D -1) { + sock->localaddr, errp) < 0) { return -1; } return 0; @@ -754,11 +750,11 @@ int net_init_socket(const Netdev *netdev, const char = *name, =20 assert(sock->has_udp); if (!sock->has_localaddr) { - error_report("localaddr=3D is mandatory with udp=3D"); + error_setg(errp, "localaddr=3D is mandatory with udp=3D"); return -1; } - if (net_socket_udp_init(peer, "socket", name, sock->udp, sock->localad= dr) =3D=3D - -1) { + if (net_socket_udp_init(peer, "socket", name, sock->udp, sock->localad= dr, + errp) < 0) { return -1; } return 0; --=20 2.9.4