X-Git-Url: http://git.onelab.eu/?a=blobdiff_plain;f=lib%2Fnetdev-tunnel.c;h=f8bc74bb18fcc15d20dbd85f2a0a8cba8cbc7ed5;hb=0f795b759cfc75d9effbe245c8714dbea6d20bb1;hp=095306f2ca7bcec603977e41690d01c992d51dd5;hpb=4816a18f33380a33d381b77d41df39113c94500d;p=sliver-openvswitch.git diff --git a/lib/netdev-tunnel.c b/lib/netdev-tunnel.c index 095306f2c..f8bc74bb1 100644 --- a/lib/netdev-tunnel.c +++ b/lib/netdev-tunnel.c @@ -38,8 +38,8 @@ VLOG_DEFINE_THIS_MODULE(netdev_tunnel); -struct netdev_dev_tunnel { - struct netdev_dev netdev_dev; +struct netdev_tunnel { + struct netdev up; uint8_t hwaddr[ETH_ADDR_LEN]; struct netdev_stats stats; enum netdev_flags flags; @@ -52,134 +52,118 @@ struct netdev_dev_tunnel { unsigned int change_seq; }; -struct netdev_tunnel { - struct netdev netdev; -} ; +struct netdev_rx_tunnel { + struct netdev_rx up; + int fd; +}; + +static const struct netdev_rx_class netdev_rx_tunnel_class; static struct vlog_rate_limit rl = VLOG_RATE_LIMIT_INIT(5, 20); -static struct shash tunnel_netdev_devs = SHASH_INITIALIZER(&tunnel_netdev_devs); +static struct shash tunnel_netdevs = SHASH_INITIALIZER(&tunnel_netdevs); static int netdev_tunnel_create(const struct netdev_class *, const char *, - struct netdev_dev **); -static void netdev_tunnel_update_seq(struct netdev_dev_tunnel *); + struct netdev **); +static void netdev_tunnel_update_seq(struct netdev_tunnel *); static bool -is_tunnel_class(const struct netdev_class *class) +is_netdev_tunnel_class(const struct netdev_class *class) { return class->create == netdev_tunnel_create; } -static struct netdev_dev_tunnel * -netdev_dev_tunnel_cast(const struct netdev_dev *netdev_dev) +static struct netdev_tunnel * +netdev_tunnel_cast(const struct netdev *netdev) { - ovs_assert(is_tunnel_class(netdev_dev_get_class(netdev_dev))); - return CONTAINER_OF(netdev_dev, struct netdev_dev_tunnel, netdev_dev); + ovs_assert(is_netdev_tunnel_class(netdev_get_class(netdev))); + return CONTAINER_OF(netdev, struct netdev_tunnel, up); } -static struct netdev_tunnel * -netdev_tunnel_cast(const struct netdev *netdev) +static struct netdev_rx_tunnel * +netdev_rx_tunnel_cast(const struct netdev_rx *rx) { - struct netdev_dev *netdev_dev = netdev_get_dev(netdev); - ovs_assert(is_tunnel_class(netdev_dev_get_class(netdev_dev))); - return CONTAINER_OF(netdev, struct netdev_tunnel, netdev); + netdev_rx_assert_class(rx, &netdev_rx_tunnel_class); + return CONTAINER_OF(rx, struct netdev_rx_tunnel, up); } static int netdev_tunnel_create(const struct netdev_class *class, const char *name, - struct netdev_dev **netdev_devp) + struct netdev **netdevp) { static unsigned int n = 0; - struct netdev_dev_tunnel *netdev_dev; + struct netdev_tunnel *netdev; int error; - netdev_dev = xzalloc(sizeof *netdev_dev); - netdev_dev_init(&netdev_dev->netdev_dev, name, class); - netdev_dev->hwaddr[0] = 0xfe; - netdev_dev->hwaddr[1] = 0xff; - netdev_dev->hwaddr[2] = 0xff; - netdev_dev->hwaddr[3] = n >> 16; - netdev_dev->hwaddr[4] = n >> 8; - netdev_dev->hwaddr[5] = n; - netdev_dev->flags = 0; - netdev_dev->change_seq = 1; - memset(&netdev_dev->remote_addr, 0, sizeof(netdev_dev->remote_addr)); - netdev_dev->valid_remote_ip = false; - netdev_dev->valid_remote_port = false; - netdev_dev->connected = false; - - - netdev_dev->sockfd = inet_open_passive(SOCK_DGRAM, "", 0, &netdev_dev->local_addr, 0); - if (netdev_dev->sockfd < 0) { - error = netdev_dev->sockfd; + netdev = xzalloc(sizeof *netdev); + netdev_init(&netdev->up, name, class); + netdev->hwaddr[0] = 0xfe; + netdev->hwaddr[1] = 0xff; + netdev->hwaddr[2] = 0xff; + netdev->hwaddr[3] = n >> 16; + netdev->hwaddr[4] = n >> 8; + netdev->hwaddr[5] = n; + netdev->flags = 0; + netdev->change_seq = 1; + memset(&netdev->remote_addr, 0, sizeof(netdev->remote_addr)); + netdev->valid_remote_ip = false; + netdev->valid_remote_port = false; + netdev->connected = false; + + + netdev->sockfd = inet_open_passive(SOCK_DGRAM, "", 0, &netdev->local_addr, 0); + if (netdev->sockfd < 0) { + error = netdev->sockfd; goto error; } - shash_add(&tunnel_netdev_devs, name, netdev_dev); + shash_add(&tunnel_netdevs, name, netdev); n++; - *netdev_devp = &netdev_dev->netdev_dev; + *netdevp = &netdev->up; - VLOG_DBG("tunnel_create: name=%s, fd=%d, port=%d", name, netdev_dev->sockfd, netdev_dev->local_addr.sin_port); + VLOG_DBG("tunnel_create: name=%s, fd=%d, port=%d", name, netdev->sockfd, netdev->local_addr.sin_port); return 0; error: - free(netdev_dev); + free(netdev); return error; } static void -netdev_tunnel_destroy(struct netdev_dev *netdev_dev_) +netdev_tunnel_destroy(struct netdev *netdev_) { - struct netdev_dev_tunnel *netdev_dev = netdev_dev_tunnel_cast(netdev_dev_); - - if (netdev_dev->sockfd != -1) - close(netdev_dev->sockfd); - - shash_find_and_delete(&tunnel_netdev_devs, - netdev_dev_get_name(netdev_dev_)); - free(netdev_dev); -} - -static int -netdev_tunnel_open(struct netdev_dev *netdev_dev_, struct netdev **netdevp) -{ - struct netdev_tunnel *netdev; - - netdev = xmalloc(sizeof *netdev); - netdev_init(&netdev->netdev, netdev_dev_); + struct netdev_tunnel *netdev = netdev_tunnel_cast(netdev_); - *netdevp = &netdev->netdev; - return 0; -} + if (netdev->sockfd != -1) + close(netdev->sockfd); -static void -netdev_tunnel_close(struct netdev *netdev_) -{ - struct netdev_tunnel *netdev = netdev_tunnel_cast(netdev_); + shash_find_and_delete(&tunnel_netdevs, + netdev_get_name(netdev_)); free(netdev); } static int -netdev_tunnel_get_config(struct netdev_dev *dev_, struct smap *args) +netdev_tunnel_get_config(const struct netdev *dev_, struct smap *args) { - struct netdev_dev_tunnel *netdev_dev = netdev_dev_tunnel_cast(dev_); + struct netdev_tunnel *netdev = netdev_tunnel_cast(dev_); - if (netdev_dev->valid_remote_ip) + if (netdev->valid_remote_ip) smap_add_format(args, "remote_ip", IP_FMT, - IP_ARGS(netdev_dev->remote_addr.sin_addr.s_addr)); - if (netdev_dev->valid_remote_port) + IP_ARGS(netdev->remote_addr.sin_addr.s_addr)); + if (netdev->valid_remote_port) smap_add_format(args, "remote_port", "%"PRIu16, - ntohs(netdev_dev->remote_addr.sin_port)); + ntohs(netdev->remote_addr.sin_port)); return 0; } static int -netdev_tunnel_connect(struct netdev_dev_tunnel *dev) +netdev_tunnel_connect(struct netdev_tunnel *dev) { + char buf[1024]; if (dev->sockfd < 0) return EBADF; if (!dev->valid_remote_ip || !dev->valid_remote_port) @@ -190,18 +174,18 @@ netdev_tunnel_connect(struct netdev_dev_tunnel *dev) } dev->connected = true; netdev_tunnel_update_seq(dev); - VLOG_DBG("%s: connected to (%s, %d)", netdev_dev_get_name(&dev->netdev_dev), - inet_ntoa(dev->remote_addr.sin_addr), ntohs(dev->remote_addr.sin_port)); + VLOG_DBG("%s: connected to (%s, %d)", netdev_get_name(&dev->up), + inet_ntop(AF_INET, &dev->remote_addr.sin_addr, buf, 1024), ntohs(dev->remote_addr.sin_port)); return 0; } static int -netdev_tunnel_set_config(struct netdev_dev *dev_, const struct smap *args) +netdev_tunnel_set_config(struct netdev *dev_, const struct smap *args) { - struct netdev_dev_tunnel *netdev_dev = netdev_dev_tunnel_cast(dev_); + struct netdev_tunnel *netdev = netdev_tunnel_cast(dev_); struct shash_node *node; - VLOG_DBG("tunnel_set_config(%s)", netdev_dev_get_name(dev_)); + VLOG_DBG("tunnel_set_config(%s)", netdev_get_name(dev_)); SMAP_FOR_EACH(node, args) { VLOG_DBG("arg: %s->%s", node->name, (char*)node->data); if (!strcmp(node->name, "remote_ip")) { @@ -209,53 +193,68 @@ netdev_tunnel_set_config(struct netdev_dev *dev_, const struct smap *args) if (lookup_ip(node->data, &addr)) { VLOG_WARN("%s: bad 'remote_ip'", node->name); } else { - netdev_dev->remote_addr.sin_addr = addr; - netdev_dev->valid_remote_ip = true; + netdev->remote_addr.sin_addr = addr; + netdev->valid_remote_ip = true; } } else if (!strcmp(node->name, "remote_port")) { - netdev_dev->remote_addr.sin_port = htons(atoi(node->data)); - netdev_dev->valid_remote_port = true; + netdev->remote_addr.sin_port = htons(atoi(node->data)); + netdev->valid_remote_port = true; } else { VLOG_WARN("%s: unknown argument '%s'", - netdev_dev_get_name(dev_), node->name); + netdev_get_name(dev_), node->name); } } - return netdev_tunnel_connect(netdev_dev); + return netdev_tunnel_connect(netdev); } static int -netdev_tunnel_listen(struct netdev *netdev_ OVS_UNUSED) -{ +netdev_tunnel_rx_open(struct netdev *netdev_, struct netdev_rx **rxp) +{ + struct netdev_tunnel *netdev = + netdev_tunnel_cast(netdev_); + struct netdev_rx_tunnel *rx; + rx = xmalloc(sizeof *rx); + netdev_rx_init(&rx->up, netdev_, &netdev_rx_tunnel_class); + rx->fd = netdev->sockfd; + *rxp = &rx->up; return 0; } +static void +netdev_rx_tunnel_destroy(struct netdev_rx *rx_) +{ + struct netdev_rx_tunnel *rx = netdev_rx_tunnel_cast(rx_); + free(rx); +} + static int -netdev_tunnel_recv(struct netdev *netdev_, void *buffer, size_t size) +netdev_rx_tunnel_recv(struct netdev_rx *rx_, void *buffer, size_t size) { - struct netdev_dev_tunnel *dev = - netdev_dev_tunnel_cast(netdev_get_dev(netdev_)); - if (!dev->connected) + struct netdev_rx_tunnel *rx = netdev_rx_tunnel_cast(rx_); + struct netdev_tunnel *netdev = + netdev_tunnel_cast(rx_->netdev); + if (!netdev->connected) return -EAGAIN; for (;;) { ssize_t retval; - retval = recv(dev->sockfd, buffer, size, MSG_TRUNC); - VLOG_DBG("%s: recv(%"PRIxPTR", %zu, MSG_TRUNC) = %zd", - netdev_get_name(netdev_), (uintptr_t)buffer, size, retval); + retval = recv(rx->fd, buffer, size, MSG_TRUNC); + VLOG_DBG("%s: recv(%"PRIxPTR", %zu, MSG_TRUNC) = %zd", + netdev_rx_get_name(rx_), (uintptr_t)buffer, size, retval); if (retval >= 0) { - dev->stats.rx_packets++; - dev->stats.rx_bytes += retval; + netdev->stats.rx_packets++; + netdev->stats.rx_bytes += retval; if (retval <= size) { - return retval; - } else { - dev->stats.rx_errors++; - dev->stats.rx_length_errors++; - return -EMSGSIZE; - } + return retval; + } else { + netdev->stats.rx_errors++; + netdev->stats.rx_length_errors++; + return -EMSGSIZE; + } } else if (errno != EINTR) { if (errno != EAGAIN) { VLOG_WARN_RL(&rl, "error receiveing Ethernet packet on %s: %s", - netdev_get_name(netdev_), strerror(errno)); - dev->stats.rx_errors++; + netdev_rx_get_name(rx_), ovs_strerror(errno)); + netdev->stats.rx_errors++; } return -errno; } @@ -263,20 +262,20 @@ netdev_tunnel_recv(struct netdev *netdev_, void *buffer, size_t size) } static void -netdev_tunnel_recv_wait(struct netdev *netdev_) +netdev_rx_tunnel_wait(struct netdev_rx *rx_) { - struct netdev_dev_tunnel *dev = - netdev_dev_tunnel_cast(netdev_get_dev(netdev_)); - if (dev->sockfd >= 0) { - poll_fd_wait(dev->sockfd, POLLIN); + struct netdev_rx_tunnel *rx = + netdev_rx_tunnel_cast(rx_); + if (rx->fd >= 0) { + poll_fd_wait(rx->fd, POLLIN); } } static int netdev_tunnel_send(struct netdev *netdev_, const void *buffer, size_t size) { - struct netdev_dev_tunnel *dev = - netdev_dev_tunnel_cast(netdev_get_dev(netdev_)); + struct netdev_tunnel *dev = + netdev_tunnel_cast(netdev_); if (!dev->connected) return EAGAIN; for (;;) { @@ -296,7 +295,7 @@ netdev_tunnel_send(struct netdev *netdev_, const void *buffer, size_t size) } else if (errno != EINTR) { if (errno != EAGAIN) { VLOG_WARN_RL(&rl, "error sending Ethernet packet on %s: %s", - netdev_get_name(netdev_), strerror(errno)); + netdev_get_name(netdev_), ovs_strerror(errno)); dev->stats.tx_errors++; } return errno; @@ -307,25 +306,26 @@ netdev_tunnel_send(struct netdev *netdev_, const void *buffer, size_t size) static void netdev_tunnel_send_wait(struct netdev *netdev_) { - struct netdev_dev_tunnel *dev = - netdev_dev_tunnel_cast(netdev_get_dev(netdev_)); + struct netdev_tunnel *dev = netdev_tunnel_cast(netdev_); if (dev->sockfd >= 0) { poll_fd_wait(dev->sockfd, POLLOUT); } } static int -netdev_tunnel_drain(struct netdev *netdev_) +netdev_rx_tunnel_drain(struct netdev_rx *rx_) { - struct netdev_dev_tunnel *dev = - netdev_dev_tunnel_cast(netdev_get_dev(netdev_)); + struct netdev_tunnel *netdev = + netdev_tunnel_cast(rx_->netdev); + struct netdev_rx_tunnel *rx = + netdev_rx_tunnel_cast(rx_); char buffer[128]; int error; - if (!dev->connected) + if (!netdev->connected) return 0; for (;;) { - error = recv(dev->sockfd, buffer, 128, MSG_TRUNC); + error = recv(rx->fd, buffer, 128, MSG_TRUNC); if (error) { if (error == -EAGAIN) break; @@ -340,8 +340,7 @@ static int netdev_tunnel_set_etheraddr(struct netdev *netdev, const uint8_t mac[ETH_ADDR_LEN]) { - struct netdev_dev_tunnel *dev = - netdev_dev_tunnel_cast(netdev_get_dev(netdev)); + struct netdev_tunnel *dev = netdev_tunnel_cast(netdev); if (!eth_addr_equals(dev->hwaddr, mac)) { memcpy(dev->hwaddr, mac, ETH_ADDR_LEN); @@ -355,8 +354,7 @@ static int netdev_tunnel_get_etheraddr(const struct netdev *netdev, uint8_t mac[ETH_ADDR_LEN]) { - const struct netdev_dev_tunnel *dev = - netdev_dev_tunnel_cast(netdev_get_dev(netdev)); + const struct netdev_tunnel *dev = netdev_tunnel_cast(netdev); memcpy(mac, dev->hwaddr, ETH_ADDR_LEN); return 0; @@ -366,8 +364,7 @@ netdev_tunnel_get_etheraddr(const struct netdev *netdev, static int netdev_tunnel_get_stats(const struct netdev *netdev, struct netdev_stats *stats) { - const struct netdev_dev_tunnel *dev = - netdev_dev_tunnel_cast(netdev_get_dev(netdev)); + const struct netdev_tunnel *dev = netdev_tunnel_cast(netdev); *stats = dev->stats; return 0; @@ -376,31 +373,30 @@ netdev_tunnel_get_stats(const struct netdev *netdev, struct netdev_stats *stats) static int netdev_tunnel_set_stats(struct netdev *netdev, const struct netdev_stats *stats) { - struct netdev_dev_tunnel *dev = - netdev_dev_tunnel_cast(netdev_get_dev(netdev)); + struct netdev_tunnel *dev = netdev_tunnel_cast(netdev); dev->stats = *stats; return 0; } static int -netdev_tunnel_update_flags(struct netdev *netdev, +netdev_tunnel_update_flags(struct netdev *dev_, enum netdev_flags off, enum netdev_flags on, enum netdev_flags *old_flagsp) { - struct netdev_dev_tunnel *dev = - netdev_dev_tunnel_cast(netdev_get_dev(netdev)); + struct netdev_tunnel *netdev = + netdev_tunnel_cast(dev_); if ((off | on) & ~(NETDEV_UP | NETDEV_PROMISC)) { return EINVAL; } - // XXX should we actually do something with this flags? - *old_flagsp = dev->flags; - dev->flags |= on; - dev->flags &= ~off; - if (*old_flagsp != dev->flags) { - netdev_tunnel_update_seq(dev); + // XXX should we actually do something with these flags? + *old_flagsp = netdev->flags; + netdev->flags |= on; + netdev->flags &= ~off; + if (*old_flagsp != netdev->flags) { + netdev_tunnel_update_seq(netdev); } return 0; } @@ -408,13 +404,13 @@ netdev_tunnel_update_flags(struct netdev *netdev, static unsigned int netdev_tunnel_change_seq(const struct netdev *netdev) { - return netdev_dev_tunnel_cast(netdev_get_dev(netdev))->change_seq; + return netdev_tunnel_cast(netdev)->change_seq; } /* Helper functions. */ static void -netdev_tunnel_update_seq(struct netdev_dev_tunnel *dev) +netdev_tunnel_update_seq(struct netdev_tunnel *dev) { dev->change_seq++; if (!dev->change_seq) { @@ -426,10 +422,10 @@ static void netdev_tunnel_get_port(struct unixctl_conn *conn, int argc OVS_UNUSED, const char *argv[], void *aux OVS_UNUSED) { - struct netdev_dev_tunnel *tunnel_dev; + struct netdev_tunnel *tunnel_dev; char buf[6]; - tunnel_dev = shash_find_data(&tunnel_netdev_devs, argv[1]); + tunnel_dev = shash_find_data(&tunnel_netdevs, argv[1]); if (!tunnel_dev) { unixctl_command_reply_error(conn, "no such tunnel netdev"); return; @@ -443,10 +439,10 @@ static void netdev_tunnel_get_tx_bytes(struct unixctl_conn *conn, int argc OVS_UNUSED, const char *argv[], void *aux OVS_UNUSED) { - struct netdev_dev_tunnel *tunnel_dev; + struct netdev_tunnel *tunnel_dev; char buf[128]; - tunnel_dev = shash_find_data(&tunnel_netdev_devs, argv[1]); + tunnel_dev = shash_find_data(&tunnel_netdevs, argv[1]); if (!tunnel_dev) { unixctl_command_reply_error(conn, "no such tunnel netdev"); return; @@ -460,10 +456,10 @@ static void netdev_tunnel_get_rx_bytes(struct unixctl_conn *conn, int argc OVS_UNUSED, const char *argv[], void *aux OVS_UNUSED) { - struct netdev_dev_tunnel *tunnel_dev; + struct netdev_tunnel *tunnel_dev; char buf[128]; - tunnel_dev = shash_find_data(&tunnel_netdev_devs, argv[1]); + tunnel_dev = shash_find_data(&tunnel_netdevs, argv[1]); if (!tunnel_dev) { unixctl_command_reply_error(conn, "no such tunnel netdev"); return; @@ -496,25 +492,19 @@ const struct netdev_class netdev_tunnel_class = { netdev_tunnel_destroy, netdev_tunnel_get_config, netdev_tunnel_set_config, - NULL, /* get_tunnel_config */ + NULL, /* get_tunnel_config */ - netdev_tunnel_open, - netdev_tunnel_close, - - netdev_tunnel_listen, - netdev_tunnel_recv, - netdev_tunnel_recv_wait, - netdev_tunnel_drain, + netdev_tunnel_rx_open, netdev_tunnel_send, netdev_tunnel_send_wait, netdev_tunnel_set_etheraddr, netdev_tunnel_get_etheraddr, - NULL, /* get_mtu */ - NULL, /* set_mtu */ + NULL, /* get_mtu */ + NULL, /* set_mtu */ NULL, /* get_ifindex */ - NULL, /* get_carrier */ + NULL, /* get_carrier */ NULL, /* get_carrier_resets */ NULL, /* get_miimon */ netdev_tunnel_get_stats, @@ -547,3 +537,12 @@ const struct netdev_class netdev_tunnel_class = { netdev_tunnel_change_seq }; + + +static const struct netdev_rx_class netdev_rx_tunnel_class = { + netdev_rx_tunnel_destroy, + netdev_rx_tunnel_recv, + netdev_rx_tunnel_wait, + netdev_rx_tunnel_drain, +}; +