From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from eggs.gnu.org ([2001:4830:134:3::10]:33765) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1bF0cM-0003pQ-CX for qemu-devel@nongnu.org; Mon, 20 Jun 2016 10:56:05 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1bF0cI-0000n3-5b for qemu-devel@nongnu.org; Mon, 20 Jun 2016 10:56:02 -0400 Received: from mail-wm0-x241.google.com ([2a00:1450:400c:c09::241]:35667) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1bF0cH-0000mq-S4 for qemu-devel@nongnu.org; Mon, 20 Jun 2016 10:55:58 -0400 Received: by mail-wm0-x241.google.com with SMTP id a66so9632904wme.2 for ; Mon, 20 Jun 2016 07:55:57 -0700 (PDT) Sender: Paolo Bonzini References: <1466072448-16388-1-git-send-email-ashijeetacharya@gmail.com> <1466236442-11513-1-git-send-email-ashijeetacharya@gmail.com> From: Paolo Bonzini Message-ID: <3914a07e-7ad4-f09c-e71e-d51f6200197c@redhat.com> Date: Mon, 20 Jun 2016 16:55:55 +0200 MIME-Version: 1.0 In-Reply-To: <1466236442-11513-1-git-send-email-ashijeetacharya@gmail.com> Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: 7bit Subject: Re: [Qemu-devel] [PATCH v2] Change net/socket.c to use socket_*() functions List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , To: Ashijeet Acharya , berrange@redhat.com Cc: kraxel@redhat.com, jasowang@redhat.com, stefanha@gmail.com, qemu-devel@nongnu.org On 18/06/2016 09:54, Ashijeet Acharya wrote: > Use socket_*() functions from include/qemu/sockets.h instead of > listen()/bind()/ connect()/parse_host_port(). socket_*() fucntions are > QAPI based and this patch performs this api conversion since everything > will be using QAPI based sockets in the future. Also add a helper > function socket_address_to_string() in util/qemu-sockets.c which returns > the string representation of socket address. Thetask was listed on > http://wiki.qemu.org/BiteSizedTasks page. > > Signed-off-by: Ashijeet Acharya Reviewed-by: Paolo Bonzini Jason, are you going to take this through the net tree? Thanks, Paolo > --- > include/qemu/sockets.h | 16 ++++++++++++++- > net/socket.c | 55 +++++++++++++++++++++++++------------------------- > util/qemu-sockets.c | 36 +++++++++++++++++++++++++++++++++ > 3 files changed, 78 insertions(+), 29 deletions(-) > > diff --git a/include/qemu/sockets.h b/include/qemu/sockets.h > index 1bd9218..3a1a887 100644 > --- a/include/qemu/sockets.h > +++ b/include/qemu/sockets.h > @@ -110,4 +110,18 @@ SocketAddress *socket_remote_address(int fd, Error **errp); > void qapi_copy_SocketAddress(SocketAddress **p_dest, > SocketAddress *src); > > -#endif /* QEMU_SOCKET_H */ > +/** > + * socket_address_to_string: > + * @addr: the socket address struct > + * @errp: pointer to uninitialized error object > + * > + * Get the string representation of the socket > + * address. A pointer to the char array containing > + * string format will be returned, the caller is > + * required to release the returned value when no > + * longer required with g_free. > + * > + * Returns: the socket address in string format, or NULL on error > + */ > +char *socket_address_to_string(struct SocketAddress *addr, Error **errp); > +#endif /* QEMU_SOCKET_H */ > \ No newline at end of file > diff --git a/net/socket.c b/net/socket.c > index 333fb9e..ae6f921 100644 > --- a/net/socket.c > +++ b/net/socket.c > @@ -489,41 +489,30 @@ static int net_socket_listen_init(NetClientState *peer, > { > NetClientState *nc; > NetSocketState *s; > - struct sockaddr_in saddr; > - int fd, ret; > + SocketAddress *saddr; > + int ret; > + Error *local_error = NULL; > > - if (parse_host_port(&saddr, host_str) < 0) > - return -1; > - > - fd = qemu_socket(PF_INET, SOCK_STREAM, 0); > - if (fd < 0) { > - perror("socket"); > + saddr = socket_parse(host_str, &local_error); > + if (saddr == NULL) { > + error_report_err(local_error); > return -1; > } > - qemu_set_nonblock(fd); > > - socket_set_fast_reuse(fd); > - > - ret = bind(fd, (struct sockaddr *)&saddr, sizeof(saddr)); > + ret = socket_listen(saddr, &local_error); > if (ret < 0) { > - perror("bind"); > - closesocket(fd); > - return -1; > - } > - ret = listen(fd, 0); > - if (ret < 0) { > - perror("listen"); > - closesocket(fd); > + error_report_err(local_error); > return -1; > } > > nc = qemu_new_net_client(&net_socket_info, peer, model, name); > s = DO_UPCAST(NetSocketState, nc, nc); > s->fd = -1; > - s->listen_fd = fd; > + s->listen_fd = ret; > s->nc.link_down = true; > > qemu_set_fd_handler(s->listen_fd, net_socket_accept, NULL, s); > + qapi_free_SocketAddress(saddr); > return 0; > } > > @@ -534,10 +523,15 @@ static int net_socket_connect_init(NetClientState *peer, > { > NetSocketState *s; > int fd, connected, ret; > - struct sockaddr_in saddr; > + char *addr_str; > + SocketAddress *saddr; > + Error *local_error = NULL; > > - if (parse_host_port(&saddr, host_str) < 0) > + saddr = socket_parse(host_str, &local_error); > + if (saddr == NULL) { > + error_report_err(local_error); > return -1; > + } > > fd = qemu_socket(PF_INET, SOCK_STREAM, 0); > if (fd < 0) { > @@ -545,10 +539,9 @@ static int net_socket_connect_init(NetClientState *peer, > return -1; > } > qemu_set_nonblock(fd); > - > connected = 0; > for(;;) { > - ret = connect(fd, (struct sockaddr *)&saddr, sizeof(saddr)); > + ret = socket_connect(saddr, &local_error, NULL, NULL); > if (ret < 0) { > if (errno == EINTR || errno == EWOULDBLOCK) { > /* continue */ > @@ -557,7 +550,7 @@ static int net_socket_connect_init(NetClientState *peer, > errno == EINVAL) { > break; > } else { > - perror("connect"); > + error_report_err(local_error); > closesocket(fd); > return -1; > } > @@ -569,9 +562,15 @@ static int net_socket_connect_init(NetClientState *peer, > s = net_socket_fd_init(peer, model, name, fd, connected); > if (!s) > return -1; > + > + addr_str = socket_address_to_string(saddr, &local_error); > + if (addr_str == NULL) > + 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)); > + "socket: connect to %s", addr_str); > + qapi_free_SocketAddress(saddr); > + g_free(addr_str); > return 0; > } > > diff --git a/util/qemu-sockets.c b/util/qemu-sockets.c > index 0d6cd1f..771b7db 100644 > --- a/util/qemu-sockets.c > +++ b/util/qemu-sockets.c > @@ -1151,3 +1151,39 @@ void qapi_copy_SocketAddress(SocketAddress **p_dest, > qmp_input_visitor_cleanup(qiv); > qobject_decref(obj); > } > + > +char *socket_address_to_string(struct SocketAddress *addr, Error **errp) > +{ > + char *buf; > + InetSocketAddress *inet; > + char host_port[INET6_ADDRSTRLEN + 5 + 4]; > + > + switch (addr->type) { > + case SOCKET_ADDRESS_KIND_INET: > + inet = addr->u.inet.data; > + if (strchr(inet->host, ':') == NULL) { > + snprintf(host_port, sizeof(host_port), "%s:%s", inet->host, > + inet->port); > + buf = g_strdup(host_port); > + } else { > + snprintf(host_port, sizeof(host_port), "[%s]:%s", inet->host, > + inet->port); > + buf = g_strdup(host_port); > + } > + break; > + > + case SOCKET_ADDRESS_KIND_UNIX: > + buf = g_strdup(addr->u.q_unix.data->path); > + break; > + > + case SOCKET_ADDRESS_KIND_FD: > + buf = g_strdup(addr->u.fd.data->str); > + break; > + > + default: > + error_setg(errp, "socket family %d unsupported", > + addr->type); > + return NULL; > + } > + return buf; > +} >