Patchwork [5/8] vlan cleanup: remove socket.h and socket.c

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Submitter Miguel Di Ciurcio Filho
Date July 12, 2010, 7:20 p.m.
Message ID <1278962453-15774-6-git-send-email-miguel.filho@gmail.com>
Download mbox | patch
Permalink /patch/58659/
State New
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Comments

Miguel Di Ciurcio Filho - July 12, 2010, 7:20 p.m.
---
 net/socket.c |  573 ----------------------------------------------------------
 net/socket.h |   33 ----
 2 files changed, 0 insertions(+), 606 deletions(-)

Patch

diff --git a/net/socket.c b/net/socket.c
deleted file mode 100644
index 1c4e153..0000000
--- a/net/socket.c
+++ /dev/null
@@ -1,573 +0,0 @@ 
-/*
- * QEMU System Emulator
- *
- * Copyright (c) 2003-2008 Fabrice Bellard
- *
- * Permission is hereby granted, free of charge, to any person obtaining a copy
- * of this software and associated documentation files (the "Software"), to deal
- * in the Software without restriction, including without limitation the rights
- * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
- * copies of the Software, and to permit persons to whom the Software is
- * furnished to do so, subject to the following conditions:
- *
- * The above copyright notice and this permission notice shall be included in
- * all copies or substantial portions of the Software.
- *
- * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
- * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
- * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
- * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
- * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
- * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
- * THE SOFTWARE.
- */
-#include "net/socket.h"
-
-#include "config-host.h"
-
-#include "net.h"
-#include "qemu-char.h"
-#include "qemu-common.h"
-#include "qemu-error.h"
-#include "qemu-option.h"
-#include "qemu_socket.h"
-
-typedef struct NetSocketState {
-    VLANClientState nc;
-    int fd;
-    int state; /* 0 = getting length, 1 = getting data */
-    unsigned int index;
-    unsigned int packet_len;
-    uint8_t buf[4096];
-    struct sockaddr_in dgram_dst; /* contains inet host and port destination iff connectionless (SOCK_DGRAM) */
-} NetSocketState;
-
-typedef struct NetSocketListenState {
-    VLANState *vlan;
-    char *model;
-    char *name;
-    int fd;
-} NetSocketListenState;
-
-/* XXX: we consider we can send the whole packet without blocking */
-static ssize_t net_socket_receive(VLANClientState *nc, const uint8_t *buf, size_t size)
-{
-    NetSocketState *s = DO_UPCAST(NetSocketState, nc, nc);
-    uint32_t len;
-    len = htonl(size);
-
-    send_all(s->fd, (const uint8_t *)&len, sizeof(len));
-    return send_all(s->fd, buf, size);
-}
-
-static ssize_t net_socket_receive_dgram(VLANClientState *nc, const uint8_t *buf, size_t size)
-{
-    NetSocketState *s = DO_UPCAST(NetSocketState, nc, nc);
-
-    return sendto(s->fd, (const void *)buf, size, 0,
-                  (struct sockaddr *)&s->dgram_dst, sizeof(s->dgram_dst));
-}
-
-static void net_socket_send(void *opaque)
-{
-    NetSocketState *s = opaque;
-    int size, err;
-    unsigned l;
-    uint8_t buf1[4096];
-    const uint8_t *buf;
-
-    size = recv(s->fd, (void *)buf1, sizeof(buf1), 0);
-    if (size < 0) {
-        err = socket_error();
-        if (err != EWOULDBLOCK)
-            goto eoc;
-    } else if (size == 0) {
-        /* end of connection */
-    eoc:
-        qemu_set_fd_handler(s->fd, NULL, NULL, NULL);
-        closesocket(s->fd);
-        return;
-    }
-    buf = buf1;
-    while (size > 0) {
-        /* reassemble a packet from the network */
-        switch(s->state) {
-        case 0:
-            l = 4 - s->index;
-            if (l > size)
-                l = size;
-            memcpy(s->buf + s->index, buf, l);
-            buf += l;
-            size -= l;
-            s->index += l;
-            if (s->index == 4) {
-                /* got length */
-                s->packet_len = ntohl(*(uint32_t *)s->buf);
-                s->index = 0;
-                s->state = 1;
-            }
-            break;
-        case 1:
-            l = s->packet_len - s->index;
-            if (l > size)
-                l = size;
-            if (s->index + l <= sizeof(s->buf)) {
-                memcpy(s->buf + s->index, buf, l);
-            } else {
-                fprintf(stderr, "serious error: oversized packet received,"
-                    "connection terminated.\n");
-                s->state = 0;
-                goto eoc;
-            }
-
-            s->index += l;
-            buf += l;
-            size -= l;
-            if (s->index >= s->packet_len) {
-                qemu_send_packet(&s->nc, s->buf, s->packet_len);
-                s->index = 0;
-                s->state = 0;
-            }
-            break;
-        }
-    }
-}
-
-static void net_socket_send_dgram(void *opaque)
-{
-    NetSocketState *s = opaque;
-    int size;
-
-    size = recv(s->fd, (void *)s->buf, sizeof(s->buf), 0);
-    if (size < 0)
-        return;
-    if (size == 0) {
-        /* end of connection */
-        qemu_set_fd_handler(s->fd, NULL, NULL, NULL);
-        return;
-    }
-    qemu_send_packet(&s->nc, s->buf, size);
-}
-
-static int net_socket_mcast_create(struct sockaddr_in *mcastaddr)
-{
-    struct ip_mreq imr;
-    int fd;
-    int val, ret;
-    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));
-	return -1;
-
-    }
-    fd = qemu_socket(PF_INET, SOCK_DGRAM, 0);
-    if (fd < 0) {
-        perror("socket(PF_INET, SOCK_DGRAM)");
-        return -1;
-    }
-
-    val = 1;
-    ret=setsockopt(fd, SOL_SOCKET, SO_REUSEADDR,
-                   (const char *)&val, sizeof(val));
-    if (ret < 0) {
-	perror("setsockopt(SOL_SOCKET, SO_REUSEADDR)");
-	goto fail;
-    }
-
-    ret = bind(fd, (struct sockaddr *)mcastaddr, sizeof(*mcastaddr));
-    if (ret < 0) {
-        perror("bind");
-        goto fail;
-    }
-
-    /* Add host to multicast group */
-    imr.imr_multiaddr = mcastaddr->sin_addr;
-    imr.imr_interface.s_addr = htonl(INADDR_ANY);
-
-    ret = setsockopt(fd, IPPROTO_IP, IP_ADD_MEMBERSHIP,
-                     (const char *)&imr, sizeof(struct ip_mreq));
-    if (ret < 0) {
-	perror("setsockopt(IP_ADD_MEMBERSHIP)");
-	goto fail;
-    }
-
-    /* Force mcast msgs to loopback (eg. several QEMUs in same host */
-    val = 1;
-    ret=setsockopt(fd, IPPROTO_IP, IP_MULTICAST_LOOP,
-                   (const char *)&val, sizeof(val));
-    if (ret < 0) {
-	perror("setsockopt(SOL_IP, IP_MULTICAST_LOOP)");
-	goto fail;
-    }
-
-    socket_set_nonblock(fd);
-    return fd;
-fail:
-    if (fd >= 0)
-        closesocket(fd);
-    return -1;
-}
-
-static void net_socket_cleanup(VLANClientState *nc)
-{
-    NetSocketState *s = DO_UPCAST(NetSocketState, nc, nc);
-    qemu_set_fd_handler(s->fd, NULL, NULL, NULL);
-    close(s->fd);
-}
-
-static NetClientInfo net_dgram_socket_info = {
-    .type = NET_CLIENT_TYPE_SOCKET,
-    .size = sizeof(NetSocketState),
-    .receive = net_socket_receive_dgram,
-    .cleanup = net_socket_cleanup,
-};
-
-static NetSocketState *net_socket_fd_init_dgram(VLANState *vlan,
-                                                const char *model,
-                                                const char *name,
-                                                int fd, int is_connected)
-{
-    struct sockaddr_in saddr;
-    int newfd;
-    socklen_t saddr_len;
-    VLANClientState *nc;
-    NetSocketState *s;
-
-    /* fd passed: multicast: "learn" dgram_dst address from bound address and save it
-     * Because this may be "shared" socket from a "master" process, datagrams would be recv()
-     * by ONLY ONE process: we must "clone" this dgram socket --jjo
-     */
-
-    if (is_connected) {
-	if (getsockname(fd, (struct sockaddr *) &saddr, &saddr_len) == 0) {
-	    /* must be bound */
-	    if (saddr.sin_addr.s_addr==0) {
-		fprintf(stderr, "qemu: error: init_dgram: fd=%d unbound, cannot setup multicast dst addr\n",
-			fd);
-		return NULL;
-	    }
-	    /* clone dgram socket */
-	    newfd = net_socket_mcast_create(&saddr);
-	    if (newfd < 0) {
-		/* error already reported by net_socket_mcast_create() */
-		close(fd);
-		return NULL;
-	    }
-	    /* clone newfd to fd, close newfd */
-	    dup2(newfd, fd);
-	    close(newfd);
-
-	} else {
-	    fprintf(stderr, "qemu: error: init_dgram: fd=%d failed getsockname(): %s\n",
-		    fd, strerror(errno));
-	    return NULL;
-	}
-    }
-
-    nc = qemu_new_net_client(&net_dgram_socket_info, vlan, NULL, model, name);
-
-    snprintf(nc->info_str, sizeof(nc->info_str),
-	    "socket: fd=%d (%s mcast=%s:%d)",
-	    fd, is_connected ? "cloned" : "",
-	    inet_ntoa(saddr.sin_addr), ntohs(saddr.sin_port));
-
-    s = DO_UPCAST(NetSocketState, nc, nc);
-
-    s->fd = fd;
-
-    qemu_set_fd_handler(s->fd, net_socket_send_dgram, NULL, s);
-
-    /* mcast: save bound address as dst */
-    if (is_connected) s->dgram_dst=saddr;
-
-    return s;
-}
-
-static void net_socket_connect(void *opaque)
-{
-    NetSocketState *s = opaque;
-    qemu_set_fd_handler(s->fd, net_socket_send, NULL, s);
-}
-
-static NetClientInfo net_socket_info = {
-    .type = NET_CLIENT_TYPE_SOCKET,
-    .size = sizeof(NetSocketState),
-    .receive = net_socket_receive,
-    .cleanup = net_socket_cleanup,
-};
-
-static NetSocketState *net_socket_fd_init_stream(VLANState *vlan,
-                                                 const char *model,
-                                                 const char *name,
-                                                 int fd, int is_connected)
-{
-    VLANClientState *nc;
-    NetSocketState *s;
-
-    nc = qemu_new_net_client(&net_socket_info, vlan, NULL, model, name);
-
-    snprintf(nc->info_str, sizeof(nc->info_str), "socket: fd=%d", fd);
-
-    s = DO_UPCAST(NetSocketState, nc, nc);
-
-    s->fd = fd;
-
-    if (is_connected) {
-        net_socket_connect(s);
-    } else {
-        qemu_set_fd_handler(s->fd, NULL, net_socket_connect, s);
-    }
-    return s;
-}
-
-static NetSocketState *net_socket_fd_init(VLANState *vlan,
-                                          const char *model, const char *name,
-                                          int fd, int is_connected)
-{
-    int so_type = -1, optlen=sizeof(so_type);
-
-    if(getsockopt(fd, SOL_SOCKET, SO_TYPE, (char *)&so_type,
-        (socklen_t *)&optlen)< 0) {
-	fprintf(stderr, "qemu: error: getsockopt(SO_TYPE) for fd=%d failed\n", fd);
-	return NULL;
-    }
-    switch(so_type) {
-    case SOCK_DGRAM:
-        return net_socket_fd_init_dgram(vlan, model, name, fd, is_connected);
-    case SOCK_STREAM:
-        return net_socket_fd_init_stream(vlan, model, name, fd, is_connected);
-    default:
-        /* who knows ... this could be a eg. a pty, do warn and continue as stream */
-        fprintf(stderr, "qemu: warning: socket type=%d for fd=%d is not SOCK_DGRAM or SOCK_STREAM\n", so_type, fd);
-        return net_socket_fd_init_stream(vlan, model, name, fd, is_connected);
-    }
-    return NULL;
-}
-
-static void net_socket_accept(void *opaque)
-{
-    NetSocketListenState *s = opaque;
-    NetSocketState *s1;
-    struct sockaddr_in saddr;
-    socklen_t len;
-    int fd;
-
-    for(;;) {
-        len = sizeof(saddr);
-        fd = qemu_accept(s->fd, (struct sockaddr *)&saddr, &len);
-        if (fd < 0 && errno != EINTR) {
-            return;
-        } else if (fd >= 0) {
-            break;
-        }
-    }
-    s1 = net_socket_fd_init(s->vlan, s->model, s->name, fd, 1);
-    if (!s1) {
-        closesocket(fd);
-    } else {
-        snprintf(s1->nc.info_str, sizeof(s1->nc.info_str),
-                 "socket: connection from %s:%d",
-                 inet_ntoa(saddr.sin_addr), ntohs(saddr.sin_port));
-    }
-}
-
-static int net_socket_listen_init(VLANState *vlan,
-                                  const char *model,
-                                  const char *name,
-                                  const char *host_str)
-{
-    NetSocketListenState *s;
-    int fd, val, ret;
-    struct sockaddr_in saddr;
-
-    if (parse_host_port(&saddr, host_str) < 0)
-        return -1;
-
-    s = qemu_mallocz(sizeof(NetSocketListenState));
-
-    fd = qemu_socket(PF_INET, SOCK_STREAM, 0);
-    if (fd < 0) {
-        perror("socket");
-        return -1;
-    }
-    socket_set_nonblock(fd);
-
-    /* allow fast reuse */
-    val = 1;
-    setsockopt(fd, SOL_SOCKET, SO_REUSEADDR, (const char *)&val, sizeof(val));
-
-    ret = bind(fd, (struct sockaddr *)&saddr, sizeof(saddr));
-    if (ret < 0) {
-        perror("bind");
-        return -1;
-    }
-    ret = listen(fd, 0);
-    if (ret < 0) {
-        perror("listen");
-        return -1;
-    }
-    s->vlan = vlan;
-    s->model = qemu_strdup(model);
-    s->name = name ? qemu_strdup(name) : NULL;
-    s->fd = fd;
-    qemu_set_fd_handler(fd, net_socket_accept, NULL, s);
-    return 0;
-}
-
-static int net_socket_connect_init(VLANState *vlan,
-                                   const char *model,
-                                   const char *name,
-                                   const char *host_str)
-{
-    NetSocketState *s;
-    int fd, connected, ret, err;
-    struct sockaddr_in saddr;
-
-    if (parse_host_port(&saddr, host_str) < 0)
-        return -1;
-
-    fd = qemu_socket(PF_INET, SOCK_STREAM, 0);
-    if (fd < 0) {
-        perror("socket");
-        return -1;
-    }
-    socket_set_nonblock(fd);
-
-    connected = 0;
-    for(;;) {
-        ret = connect(fd, (struct sockaddr *)&saddr, sizeof(saddr));
-        if (ret < 0) {
-            err = socket_error();
-            if (err == EINTR || err == EWOULDBLOCK) {
-            } else if (err == EINPROGRESS) {
-                break;
-#ifdef _WIN32
-            } else if (err == WSAEALREADY) {
-                break;
-#endif
-            } else {
-                perror("connect");
-                closesocket(fd);
-                return -1;
-            }
-        } else {
-            connected = 1;
-            break;
-        }
-    }
-    s = net_socket_fd_init(vlan, model, name, fd, connected);
-    if (!s)
-        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));
-    return 0;
-}
-
-static int net_socket_mcast_init(VLANState *vlan,
-                                 const char *model,
-                                 const char *name,
-                                 const char *host_str)
-{
-    NetSocketState *s;
-    int fd;
-    struct sockaddr_in saddr;
-
-    if (parse_host_port(&saddr, host_str) < 0)
-        return -1;
-
-
-    fd = net_socket_mcast_create(&saddr);
-    if (fd < 0)
-	return -1;
-
-    s = net_socket_fd_init(vlan, model, name, fd, 0);
-    if (!s)
-        return -1;
-
-    s->dgram_dst = saddr;
-
-    snprintf(s->nc.info_str, sizeof(s->nc.info_str),
-             "socket: mcast=%s:%d",
-             inet_ntoa(saddr.sin_addr), ntohs(saddr.sin_port));
-    return 0;
-
-}
-
-int net_init_socket(QemuOpts *opts,
-                    Monitor *mon,
-                    const char *name,
-                    VLANState *vlan)
-{
-    if (qemu_opt_get(opts, "fd")) {
-        int fd;
-
-        if (qemu_opt_get(opts, "listen") ||
-            qemu_opt_get(opts, "connect") ||
-            qemu_opt_get(opts, "mcast")) {
-            error_report("listen=, connect= and mcast= is invalid with fd=");
-            return -1;
-        }
-
-        fd = net_handle_fd_param(mon, qemu_opt_get(opts, "fd"));
-        if (fd == -1) {
-            return -1;
-        }
-
-        if (!net_socket_fd_init(vlan, "socket", name, fd, 1)) {
-            close(fd);
-            return -1;
-        }
-    } else if (qemu_opt_get(opts, "listen")) {
-        const char *listen;
-
-        if (qemu_opt_get(opts, "fd") ||
-            qemu_opt_get(opts, "connect") ||
-            qemu_opt_get(opts, "mcast")) {
-            error_report("fd=, connect= and mcast= is invalid with listen=");
-            return -1;
-        }
-
-        listen = qemu_opt_get(opts, "listen");
-
-        if (net_socket_listen_init(vlan, "socket", name, listen) == -1) {
-            return -1;
-        }
-    } else if (qemu_opt_get(opts, "connect")) {
-        const char *connect;
-
-        if (qemu_opt_get(opts, "fd") ||
-            qemu_opt_get(opts, "listen") ||
-            qemu_opt_get(opts, "mcast")) {
-            error_report("fd=, listen= and mcast= is invalid with connect=");
-            return -1;
-        }
-
-        connect = qemu_opt_get(opts, "connect");
-
-        if (net_socket_connect_init(vlan, "socket", name, connect) == -1) {
-            return -1;
-        }
-    } else if (qemu_opt_get(opts, "mcast")) {
-        const char *mcast;
-
-        if (qemu_opt_get(opts, "fd") ||
-            qemu_opt_get(opts, "connect") ||
-            qemu_opt_get(opts, "listen")) {
-            error_report("fd=, connect= and listen= is invalid with mcast=");
-            return -1;
-        }
-
-        mcast = qemu_opt_get(opts, "mcast");
-
-        if (net_socket_mcast_init(vlan, "socket", name, mcast) == -1) {
-            return -1;
-        }
-    } else {
-        error_report("-socket requires fd=, listen=, connect= or mcast=");
-        return -1;
-    }
-
-    return 0;
-}
diff --git a/net/socket.h b/net/socket.h
deleted file mode 100644
index ea46f02..0000000
--- a/net/socket.h
+++ /dev/null
@@ -1,33 +0,0 @@ 
-/*
- * QEMU System Emulator
- *
- * Copyright (c) 2003-2008 Fabrice Bellard
- *
- * Permission is hereby granted, free of charge, to any person obtaining a copy
- * of this software and associated documentation files (the "Software"), to deal
- * in the Software without restriction, including without limitation the rights
- * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
- * copies of the Software, and to permit persons to whom the Software is
- * furnished to do so, subject to the following conditions:
- *
- * The above copyright notice and this permission notice shall be included in
- * all copies or substantial portions of the Software.
- *
- * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
- * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
- * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
- * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
- * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
- * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
- * THE SOFTWARE.
- */
-#ifndef QEMU_NET_SOCKET_H
-#define QEMU_NET_SOCKET_H
-
-#include "net.h"
-#include "qemu-common.h"
-
-int net_init_socket(QemuOpts *opts, Monitor *mon,
-                    const char *name, VLANState *vlan);
-
-#endif /* QEMU_NET_SOCKET_H */