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-rw-r--r--tipc/bearer.c1138
1 files changed, 1138 insertions, 0 deletions
diff --git a/tipc/bearer.c b/tipc/bearer.c
new file mode 100644
index 0000000..968293b
--- /dev/null
+++ b/tipc/bearer.c
@@ -0,0 +1,1138 @@
+/*
+ * bearer.c TIPC bearer functionality.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; either version
+ * 2 of the License, or (at your option) any later version.
+ *
+ * Authors: Richard Alpe <richard.alpe@ericsson.com>
+ */
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <netdb.h>
+#include <errno.h>
+#include <arpa/inet.h>
+
+#include <linux/tipc_netlink.h>
+#include <linux/tipc.h>
+#include <linux/genetlink.h>
+#include <linux/if.h>
+#include <libmnl/libmnl.h>
+
+#include "mnl_utils.h"
+#include "utils.h"
+#include "cmdl.h"
+#include "msg.h"
+#include "bearer.h"
+
+#define UDP_PROP_IP 1
+#define UDP_PROP_PORT 2
+
+struct cb_data {
+ int attr;
+ int prop;
+ struct nlmsghdr *nlh;
+};
+
+static void _print_bearer_opts(void)
+{
+ fprintf(stderr,
+ "OPTIONS\n"
+ " priority - Bearer link priority\n"
+ " tolerance - Bearer link tolerance\n"
+ " window - Bearer link window\n"
+ " mtu - Bearer link mtu\n");
+}
+
+void print_bearer_media(void)
+{
+ fprintf(stderr,
+ "\nMEDIA\n"
+ " udp - User Datagram Protocol\n"
+ " ib - Infiniband\n"
+ " eth - Ethernet\n");
+}
+
+static void cmd_bearer_enable_l2_help(struct cmdl *cmdl, char *media)
+{
+ fprintf(stderr,
+ "Usage: %s bearer enable media %s device DEVICE [OPTIONS]\n"
+ "\nOPTIONS\n"
+ " domain DOMAIN - Discovery domain\n"
+ " priority PRIORITY - Bearer priority\n",
+ cmdl->argv[0], media);
+}
+
+static void cmd_bearer_enable_udp_help(struct cmdl *cmdl, char *media)
+{
+ fprintf(stderr,
+ "Usage: %s bearer enable [OPTIONS] media %s name NAME [localip IP|device DEVICE] [UDP OPTIONS]\n\n"
+ "OPTIONS\n"
+ " domain DOMAIN - Discovery domain\n"
+ " priority PRIORITY - Bearer priority\n\n"
+ "UDP OPTIONS\n"
+ " localport PORT - Local UDP port (default 6118)\n"
+ " remoteip IP - Remote IP address\n"
+ " remoteport PORT - Remote UDP port (default 6118)\n",
+ cmdl->argv[0], media);
+}
+
+static int get_netid_cb(const struct nlmsghdr *nlh, void *data)
+{
+ struct genlmsghdr *genl = mnl_nlmsg_get_payload(nlh);
+ struct nlattr *info[TIPC_NLA_MAX + 1] = {};
+ struct nlattr *attrs[TIPC_NLA_NET_MAX + 1] = {};
+ int *netid = (int*)data;
+
+ mnl_attr_parse(nlh, sizeof(*genl), parse_attrs, info);
+ if (!info[TIPC_NLA_NET])
+ return MNL_CB_ERROR;
+ mnl_attr_parse_nested(info[TIPC_NLA_NET], parse_attrs, attrs);
+ if (!attrs[TIPC_NLA_NET_ID])
+ return MNL_CB_ERROR;
+ *netid = mnl_attr_get_u32(attrs[TIPC_NLA_NET_ID]);
+
+ return MNL_CB_OK;
+}
+
+static int generate_multicast(short af, char *buf, int bufsize)
+{
+ struct mnlu_gen_socket bearer_nlg;
+ struct nlmsghdr *nlh;
+ int netid;
+ int err = 0;
+
+ err = mnlu_gen_socket_open(&bearer_nlg, TIPC_GENL_V2_NAME,
+ TIPC_GENL_V2_VERSION);
+ if (err)
+ return -1;
+
+ nlh = mnlu_gen_socket_cmd_prepare(&bearer_nlg, TIPC_NL_NET_GET,
+ NLM_F_REQUEST | NLM_F_DUMP);
+ if (!nlh) {
+ fprintf(stderr, "error, message initialization failed\n");
+ mnlu_gen_socket_close(&bearer_nlg);
+ return -1;
+ }
+
+ err = mnlu_gen_socket_sndrcv(&bearer_nlg, nlh, get_netid_cb, &netid);
+ if (err) {
+ fprintf(stderr, "error, failed to fetch TIPC network id from kernel\n");
+ mnlu_gen_socket_close(&bearer_nlg);
+ return -EINVAL;
+ }
+ if (af == AF_INET)
+ snprintf(buf, bufsize, "228.0.%u.%u", (netid>>8) & 0xFF, netid & 0xFF);
+ else
+ snprintf(buf, bufsize, "ff02::%u", netid);
+
+ mnlu_gen_socket_close(&bearer_nlg);
+ return 0;
+}
+
+static struct ifreq ifr;
+static int nl_dump_req_filter(struct nlmsghdr *nlh, int reqlen)
+{
+ struct ifaddrmsg *ifa = NLMSG_DATA(nlh);
+
+ ifa->ifa_index = ifr.ifr_ifindex;
+
+ return 0;
+}
+
+static int nl_dump_addr_filter(struct nlmsghdr *nlh, void *arg)
+{
+ struct ifaddrmsg *ifa = NLMSG_DATA(nlh);
+ char *r_addr = (char *)arg;
+ int len = nlh->nlmsg_len;
+ struct rtattr *addr_attr;
+
+ if (ifr.ifr_ifindex != ifa->ifa_index)
+ return 0;
+
+ if (strlen(r_addr) > 0)
+ return 0;
+
+ addr_attr = parse_rtattr_one(IFA_ADDRESS, IFA_RTA(ifa),
+ len - NLMSG_LENGTH(sizeof(*ifa)));
+ if (!addr_attr)
+ return 0;
+
+ if (ifa->ifa_family == AF_INET) {
+ struct sockaddr_in ip4addr;
+ memcpy(&ip4addr.sin_addr, RTA_DATA(addr_attr),
+ sizeof(struct in_addr));
+ inet_ntop(AF_INET, &ip4addr.sin_addr, r_addr,
+ INET_ADDRSTRLEN);
+ } else if (ifa->ifa_family == AF_INET6) {
+ struct sockaddr_in6 ip6addr;
+ memcpy(&ip6addr.sin6_addr, RTA_DATA(addr_attr),
+ sizeof(struct in6_addr));
+ inet_ntop(AF_INET6, &ip6addr.sin6_addr, r_addr,
+ INET6_ADDRSTRLEN);
+ }
+ return 0;
+}
+
+static int cmd_bearer_validate_and_get_addr(const char *name, char *r_addr)
+{
+ struct rtnl_handle rth = { .fd = -1 };
+ int err = -1;
+
+ memset(&ifr, 0, sizeof(ifr));
+ if (!name || !r_addr || get_ifname(ifr.ifr_name, name))
+ return err;
+
+ ifr.ifr_ifindex = ll_name_to_index(ifr.ifr_name);
+ if (!ifr.ifr_ifindex)
+ return err;
+
+ /* remove from cache */
+ ll_drop_by_index(ifr.ifr_ifindex);
+
+ if ((err = rtnl_open(&rth, 0)) < 0)
+ return err;
+
+ if ((err = rtnl_addrdump_req(&rth, AF_UNSPEC, nl_dump_req_filter)) > 0)
+ err = rtnl_dump_filter(&rth, nl_dump_addr_filter, r_addr);
+
+ rtnl_close(&rth);
+ return err;
+}
+
+static int nl_add_udp_enable_opts(struct nlmsghdr *nlh, struct opt *opts,
+ struct cmdl *cmdl)
+{
+ int err;
+ struct opt *opt;
+ struct nlattr *nest;
+ char buf[INET6_ADDRSTRLEN];
+ char *locport = "6118";
+ char *remport = "6118";
+ char *locip = NULL;
+ char *remip = NULL;
+ struct addrinfo *loc = NULL;
+ struct addrinfo *rem = NULL;
+ struct addrinfo hints = {
+ .ai_family = AF_UNSPEC,
+ .ai_socktype = SOCK_DGRAM
+ };
+ char addr[INET6_ADDRSTRLEN] = {0};
+
+ opt = get_opt(opts, "device");
+ if (opt && cmd_bearer_validate_and_get_addr(opt->val, addr) < 0) {
+ fprintf(stderr, "error, no device name available\n");
+ return -EINVAL;
+ }
+
+ if (strlen(addr) > 0) {
+ locip = addr;
+ } else {
+ opt = get_opt(opts, "localip");
+ if (!opt) {
+ fprintf(stderr, "error, udp bearer localip/device missing\n");
+ cmd_bearer_enable_udp_help(cmdl, "udp");
+ return -EINVAL;
+ }
+ locip = opt->val;
+ }
+
+ if ((opt = get_opt(opts, "remoteip")))
+ remip = opt->val;
+
+ if ((opt = get_opt(opts, "localport")))
+ locport = opt->val;
+
+ if ((opt = get_opt(opts, "remoteport")))
+ remport = opt->val;
+
+ if ((err = getaddrinfo(locip, locport, &hints, &loc))) {
+ fprintf(stderr, "UDP local address error: %s\n",
+ gai_strerror(err));
+ return err;
+ }
+
+ if (!remip) {
+ if (generate_multicast(loc->ai_family, buf, sizeof(buf))) {
+ fprintf(stderr, "Failed to generate multicast address\n");
+ freeaddrinfo(loc);
+ return -EINVAL;
+ }
+ remip = buf;
+ }
+
+ if ((err = getaddrinfo(remip, remport, &hints, &rem))) {
+ fprintf(stderr, "UDP remote address error: %s\n",
+ gai_strerror(err));
+ freeaddrinfo(loc);
+ return err;
+ }
+
+ if (rem->ai_family != loc->ai_family) {
+ fprintf(stderr, "UDP local and remote AF mismatch\n");
+ freeaddrinfo(rem);
+ freeaddrinfo(loc);
+ return -EINVAL;
+ }
+
+ nest = mnl_attr_nest_start(nlh, TIPC_NLA_BEARER_UDP_OPTS);
+ mnl_attr_put(nlh, TIPC_NLA_UDP_LOCAL, loc->ai_addrlen, loc->ai_addr);
+ mnl_attr_put(nlh, TIPC_NLA_UDP_REMOTE, rem->ai_addrlen, rem->ai_addr);
+ mnl_attr_nest_end(nlh, nest);
+
+ freeaddrinfo(rem);
+ freeaddrinfo(loc);
+
+ return 0;
+}
+
+static char *cmd_get_media_type(const struct cmd *cmd, struct cmdl *cmdl,
+ struct opt *opts)
+{
+ struct opt *opt = get_opt(opts, "media");
+
+ if (!opt) {
+ if (help_flag)
+ (cmd->help)(cmdl);
+ else
+ fprintf(stderr, "error, missing bearer media\n");
+ return NULL;
+ }
+ return opt->val;
+}
+
+static int nl_add_bearer_name(struct nlmsghdr *nlh, const struct cmd *cmd,
+ struct cmdl *cmdl, struct opt *opts,
+ const struct tipc_sup_media *sup_media)
+{
+ char bname[TIPC_MAX_BEARER_NAME];
+ int err;
+
+ if ((err = cmd_get_unique_bearer_name(cmd, cmdl, opts, bname, sup_media)))
+ return err;
+
+ mnl_attr_put_strz(nlh, TIPC_NLA_BEARER_NAME, bname);
+ return 0;
+}
+
+int cmd_get_unique_bearer_name(const struct cmd *cmd, struct cmdl *cmdl,
+ struct opt *opts, char *bname,
+ const struct tipc_sup_media *sup_media)
+{
+ char *media;
+ char *identifier;
+ struct opt *opt;
+ const struct tipc_sup_media *entry;
+
+ if (!(media = cmd_get_media_type(cmd, cmdl, opts)))
+ return -EINVAL;
+
+ for (entry = sup_media; entry->media; entry++) {
+ if (strcmp(entry->media, media))
+ continue;
+
+ if (!(opt = get_opt(opts, entry->identifier))) {
+ if (help_flag)
+ (entry->help)(cmdl, media);
+ else
+ fprintf(stderr, "error, missing bearer %s\n",
+ entry->identifier);
+ return -EINVAL;
+ }
+
+ identifier = opt->val;
+ snprintf(bname, TIPC_MAX_BEARER_NAME, "%s:%s", media, identifier);
+
+ return 0;
+ }
+
+ fprintf(stderr, "error, invalid media type %s\n", media);
+
+ return -EINVAL;
+}
+
+static void cmd_bearer_add_udp_help(struct cmdl *cmdl, char *media)
+{
+ fprintf(stderr, "Usage: %s bearer add media %s name NAME remoteip REMOTEIP\n\n",
+ cmdl->argv[0], media);
+}
+
+static void cmd_bearer_add_help(struct cmdl *cmdl)
+{
+ fprintf(stderr, "Usage: %s bearer add media udp name NAME remoteip REMOTEIP\n",
+ cmdl->argv[0]);
+}
+
+static int udp_bearer_add(struct nlmsghdr *nlh, struct opt *opts,
+ struct cmdl *cmdl)
+{
+ int err;
+ struct opt *opt;
+ struct nlattr *opts_nest;
+ char *remport = "6118";
+
+ opts_nest = mnl_attr_nest_start(nlh, TIPC_NLA_BEARER_UDP_OPTS);
+
+ if ((opt = get_opt(opts, "remoteport")))
+ remport = opt->val;
+
+ if ((opt = get_opt(opts, "remoteip"))) {
+ char *ip = opt->val;
+ struct addrinfo *addr = NULL;
+ struct addrinfo hints = {
+ .ai_family = AF_UNSPEC,
+ .ai_socktype = SOCK_DGRAM
+ };
+
+ if ((err = getaddrinfo(ip, remport, &hints, &addr))) {
+ fprintf(stderr, "UDP address error: %s\n",
+ gai_strerror(err));
+ freeaddrinfo(addr);
+ return err;
+ }
+
+ mnl_attr_put(nlh, TIPC_NLA_UDP_REMOTE, addr->ai_addrlen,
+ addr->ai_addr);
+ freeaddrinfo(addr);
+ } else {
+ fprintf(stderr, "error, missing remoteip\n");
+ return -EINVAL;
+ }
+ mnl_attr_nest_end(nlh, opts_nest);
+
+ return 0;
+}
+
+static int cmd_bearer_add_media(struct nlmsghdr *nlh, const struct cmd *cmd,
+ struct cmdl *cmdl, void *data)
+{
+ int err;
+ char *media;
+ struct opt *opt;
+ struct nlattr *attrs;
+ struct opt opts[] = {
+ { "remoteip", OPT_KEYVAL, NULL },
+ { "remoteport", OPT_KEYVAL, NULL },
+ { "name", OPT_KEYVAL, NULL },
+ { "media", OPT_KEYVAL, NULL },
+ { NULL }
+ };
+ const struct tipc_sup_media sup_media[] = {
+ { "udp", "name", cmd_bearer_add_udp_help},
+ { NULL, },
+ };
+
+ /* Rewind optind to include media in the option list */
+ cmdl->optind--;
+ if (parse_opts(opts, cmdl) < 0)
+ return -EINVAL;
+
+ if (!(opt = get_opt(opts, "media"))) {
+ fprintf(stderr, "error, missing media value\n");
+ return -EINVAL;
+ }
+ media = opt->val;
+
+ if (strcmp(media, "udp") != 0) {
+ fprintf(stderr, "error, no \"%s\" media specific options available\n",
+ media);
+ return -EINVAL;
+ }
+ if (!(opt = get_opt(opts, "name"))) {
+ fprintf(stderr, "error, missing media name\n");
+ return -EINVAL;
+ }
+
+ nlh = msg_init(TIPC_NL_BEARER_ADD);
+ if (!nlh) {
+ fprintf(stderr, "error, message initialisation failed\n");
+ return -1;
+ }
+
+ attrs = mnl_attr_nest_start(nlh, TIPC_NLA_BEARER);
+ err = nl_add_bearer_name(nlh, cmd, cmdl, opts, sup_media);
+ if (err)
+ return err;
+
+ err = udp_bearer_add(nlh, opts, cmdl);
+ if (err)
+ return err;
+
+ mnl_attr_nest_end(nlh, attrs);
+
+ return msg_doit(nlh, NULL, NULL);
+}
+
+static int cmd_bearer_add(struct nlmsghdr *nlh, const struct cmd *cmd,
+ struct cmdl *cmdl, void *data)
+{
+ const struct cmd cmds[] = {
+ { "media", cmd_bearer_add_media, cmd_bearer_add_help },
+ { NULL }
+ };
+
+ return run_cmd(nlh, cmd, cmds, cmdl, NULL);
+}
+
+static void cmd_bearer_enable_help(struct cmdl *cmdl)
+{
+ fprintf(stderr,
+ "Usage: %s bearer enable [OPTIONS] media MEDIA ARGS...\n\n"
+ "OPTIONS\n"
+ " domain DOMAIN - Discovery domain\n"
+ " priority PRIORITY - Bearer priority\n",
+ cmdl->argv[0]);
+ print_bearer_media();
+}
+
+static int cmd_bearer_enable(struct nlmsghdr *nlh, const struct cmd *cmd,
+ struct cmdl *cmdl, void *data)
+{
+ int err;
+ struct opt *opt;
+ struct nlattr *nest;
+ struct opt opts[] = {
+ { "device", OPT_KEYVAL, NULL },
+ { "domain", OPT_KEYVAL, NULL },
+ { "localip", OPT_KEYVAL, NULL },
+ { "localport", OPT_KEYVAL, NULL },
+ { "media", OPT_KEYVAL, NULL },
+ { "name", OPT_KEYVAL, NULL },
+ { "priority", OPT_KEYVAL, NULL },
+ { "remoteip", OPT_KEYVAL, NULL },
+ { "remoteport", OPT_KEYVAL, NULL },
+ { NULL }
+ };
+ struct tipc_sup_media sup_media[] = {
+ { "udp", "name", cmd_bearer_enable_udp_help},
+ { "eth", "device", cmd_bearer_enable_l2_help },
+ { "ib", "device", cmd_bearer_enable_l2_help },
+ { NULL, },
+ };
+
+ if (parse_opts(opts, cmdl) < 0) {
+ if (help_flag)
+ (cmd->help)(cmdl);
+ return -EINVAL;
+ }
+
+ nlh = msg_init(TIPC_NL_BEARER_ENABLE);
+ if (!nlh) {
+ fprintf(stderr, "error: message initialisation failed\n");
+ return -1;
+ }
+ nest = mnl_attr_nest_start(nlh, TIPC_NLA_BEARER);
+
+ if ((opt = get_opt(opts, "domain")))
+ mnl_attr_put_u32(nlh, TIPC_NLA_BEARER_DOMAIN, atoi(opt->val));
+
+ if ((opt = get_opt(opts, "priority"))) {
+ struct nlattr *props;
+
+ props = mnl_attr_nest_start(nlh, TIPC_NLA_BEARER_PROP);
+ mnl_attr_put_u32(nlh, TIPC_NLA_PROP_PRIO, atoi(opt->val));
+ mnl_attr_nest_end(nlh, props);
+ }
+
+ err = nl_add_bearer_name(nlh, cmd, cmdl, opts, sup_media);
+ if (err)
+ return err;
+
+ opt = get_opt(opts, "media");
+ if (opt && strcmp(opt->val, "udp") == 0) {
+ err = nl_add_udp_enable_opts(nlh, opts, cmdl);
+ if (err)
+ return err;
+ }
+ mnl_attr_nest_end(nlh, nest);
+
+ return msg_doit(nlh, NULL, NULL);
+}
+
+static void cmd_bearer_disable_l2_help(struct cmdl *cmdl, char *media)
+{
+ fprintf(stderr, "Usage: %s bearer disable media %s device DEVICE\n",
+ cmdl->argv[0], media);
+}
+
+static void cmd_bearer_disable_udp_help(struct cmdl *cmdl, char *media)
+{
+ fprintf(stderr, "Usage: %s bearer disable media %s name NAME\n",
+ cmdl->argv[0], media);
+}
+
+static void cmd_bearer_disable_help(struct cmdl *cmdl)
+{
+ fprintf(stderr, "Usage: %s bearer disable media MEDIA ARGS...\n",
+ cmdl->argv[0]);
+ print_bearer_media();
+}
+
+static int cmd_bearer_disable(struct nlmsghdr *nlh, const struct cmd *cmd,
+ struct cmdl *cmdl, void *data)
+{
+ int err;
+ struct nlattr *nest;
+ struct opt opts[] = {
+ { "device", OPT_KEYVAL, NULL },
+ { "name", OPT_KEYVAL, NULL },
+ { "media", OPT_KEYVAL, NULL },
+ { NULL }
+ };
+ struct tipc_sup_media sup_media[] = {
+ { "udp", "name", cmd_bearer_disable_udp_help},
+ { "eth", "device", cmd_bearer_disable_l2_help },
+ { "ib", "device", cmd_bearer_disable_l2_help },
+ { NULL, },
+ };
+
+ if (parse_opts(opts, cmdl) < 0) {
+ if (help_flag)
+ (cmd->help)(cmdl);
+ return -EINVAL;
+ }
+
+ nlh = msg_init(TIPC_NL_BEARER_DISABLE);
+ if (!nlh) {
+ fprintf(stderr, "error, message initialisation failed\n");
+ return -1;
+ }
+
+ nest = mnl_attr_nest_start(nlh, TIPC_NLA_BEARER);
+ err = nl_add_bearer_name(nlh, cmd, cmdl, opts, sup_media);
+ if (err)
+ return err;
+ mnl_attr_nest_end(nlh, nest);
+
+ return msg_doit(nlh, NULL, NULL);
+
+}
+
+static void cmd_bearer_set_help(struct cmdl *cmdl)
+{
+ fprintf(stderr, "Usage: %s bearer set OPTION media MEDIA ARGS...\n",
+ cmdl->argv[0]);
+ _print_bearer_opts();
+ print_bearer_media();
+}
+
+static void cmd_bearer_set_udp_help(struct cmdl *cmdl, char *media)
+{
+ fprintf(stderr, "Usage: %s bearer set OPTION media %s name NAME\n\n",
+ cmdl->argv[0], media);
+ _print_bearer_opts();
+}
+
+static void cmd_bearer_set_l2_help(struct cmdl *cmdl, char *media)
+{
+ fprintf(stderr,
+ "Usage: %s bearer set [OPTION]... media %s device DEVICE\n",
+ cmdl->argv[0], media);
+ _print_bearer_opts();
+}
+
+static int cmd_bearer_set_prop(struct nlmsghdr *nlh, const struct cmd *cmd,
+ struct cmdl *cmdl, void *data)
+{
+ int err;
+ int val;
+ int prop;
+ struct nlattr *props;
+ struct nlattr *attrs;
+ struct opt opts[] = {
+ { "device", OPT_KEYVAL, NULL },
+ { "media", OPT_KEYVAL, NULL },
+ { "name", OPT_KEYVAL, NULL },
+ { NULL }
+ };
+ struct tipc_sup_media sup_media[] = {
+ { "udp", "name", cmd_bearer_set_udp_help},
+ { "eth", "device", cmd_bearer_set_l2_help },
+ { "ib", "device", cmd_bearer_set_l2_help },
+ { NULL, },
+ };
+
+ if (strcmp(cmd->cmd, "priority") == 0)
+ prop = TIPC_NLA_PROP_PRIO;
+ else if ((strcmp(cmd->cmd, "tolerance") == 0))
+ prop = TIPC_NLA_PROP_TOL;
+ else if ((strcmp(cmd->cmd, "window") == 0))
+ prop = TIPC_NLA_PROP_WIN;
+ else if ((strcmp(cmd->cmd, "mtu") == 0))
+ prop = TIPC_NLA_PROP_MTU;
+ else
+ return -EINVAL;
+
+ if (cmdl->optind >= cmdl->argc) {
+ fprintf(stderr, "error, missing value\n");
+ return -EINVAL;
+ }
+ val = atoi(shift_cmdl(cmdl));
+
+ if (parse_opts(opts, cmdl) < 0)
+ return -EINVAL;
+
+ if (prop == TIPC_NLA_PROP_MTU) {
+ char *media = cmd_get_media_type(cmd, cmdl, opts);
+
+ if (!media)
+ return -EINVAL;
+ else if (strcmp(media, "udp")) {
+ fprintf(stderr, "error, not supported for media\n");
+ return -EINVAL;
+ }
+ }
+
+ nlh = msg_init(TIPC_NL_BEARER_SET);
+ if (!nlh) {
+ fprintf(stderr, "error, message initialisation failed\n");
+ return -1;
+ }
+ attrs = mnl_attr_nest_start(nlh, TIPC_NLA_BEARER);
+
+ props = mnl_attr_nest_start(nlh, TIPC_NLA_BEARER_PROP);
+ mnl_attr_put_u32(nlh, prop, val);
+ mnl_attr_nest_end(nlh, props);
+
+ err = nl_add_bearer_name(nlh, cmd, cmdl, opts, sup_media);
+ if (err)
+ return err;
+
+ mnl_attr_nest_end(nlh, attrs);
+
+ return msg_doit(nlh, NULL, NULL);
+}
+
+static int cmd_bearer_set(struct nlmsghdr *nlh, const struct cmd *cmd,
+ struct cmdl *cmdl, void *data)
+{
+ const struct cmd cmds[] = {
+ { "priority", cmd_bearer_set_prop, cmd_bearer_set_help },
+ { "tolerance", cmd_bearer_set_prop, cmd_bearer_set_help },
+ { "window", cmd_bearer_set_prop, cmd_bearer_set_help },
+ { "mtu", cmd_bearer_set_prop, cmd_bearer_set_help },
+ { NULL }
+ };
+
+ return run_cmd(nlh, cmd, cmds, cmdl, NULL);
+}
+
+static void cmd_bearer_get_help(struct cmdl *cmdl)
+{
+ fprintf(stderr, "Usage: %s bearer get [OPTION] media MEDIA ARGS...\n",
+ cmdl->argv[0]);
+ _print_bearer_opts();
+ print_bearer_media();
+}
+
+static void cmd_bearer_get_udp_help(struct cmdl *cmdl, char *media)
+{
+ fprintf(stderr, "Usage: %s bearer get [OPTION] media %s name NAME [UDP OPTIONS]\n\n",
+ cmdl->argv[0], media);
+ fprintf(stderr,
+ "UDP OPTIONS\n"
+ " remoteip - Remote ip address\n"
+ " remoteport - Remote port\n"
+ " localip - Local ip address\n"
+ " localport - Local port\n\n");
+ _print_bearer_opts();
+}
+
+static void cmd_bearer_get_l2_help(struct cmdl *cmdl, char *media)
+{
+ fprintf(stderr,
+ "Usage: %s bearer get OPTION media %s device DEVICE\n",
+ cmdl->argv[0], media);
+ _print_bearer_opts();
+}
+
+
+static int bearer_dump_udp_cb(const struct nlmsghdr *nlh, void *data)
+{
+ struct sockaddr_storage *addr;
+ struct genlmsghdr *genl = mnl_nlmsg_get_payload(nlh);
+ struct nlattr *info[TIPC_NLA_UDP_MAX + 1] = {};
+
+ mnl_attr_parse(nlh, sizeof(*genl), parse_attrs, info);
+
+ if (!info[TIPC_NLA_UDP_REMOTE])
+ return MNL_CB_ERROR;
+
+ addr = mnl_attr_get_payload(info[TIPC_NLA_UDP_REMOTE]);
+
+ if (addr->ss_family == AF_INET) {
+ struct sockaddr_in *ipv4 = (struct sockaddr_in *) addr;
+
+ printf("%s\n", inet_ntoa(ipv4->sin_addr));
+ } else if (addr->ss_family == AF_INET6) {
+ char straddr[INET6_ADDRSTRLEN];
+ struct sockaddr_in6 *ipv6 = (struct sockaddr_in6 *) addr;
+
+ if (!inet_ntop(AF_INET6, &ipv6->sin6_addr, straddr,
+ sizeof(straddr))) {
+ fprintf(stderr, "error, parsing IPv6 addr\n");
+ return MNL_CB_ERROR;
+ }
+ printf("%s\n", straddr);
+
+ } else {
+ return MNL_CB_ERROR;
+ }
+
+ return MNL_CB_OK;
+}
+
+static int bearer_get_udp_cb(const struct nlmsghdr *nlh, void *data)
+{
+ struct cb_data *cb_data = (struct cb_data *) data;
+ struct sockaddr_storage *addr;
+ struct genlmsghdr *genl = mnl_nlmsg_get_payload(nlh);
+ struct nlattr *info[TIPC_NLA_MAX + 1] = {};
+ struct nlattr *attrs[TIPC_NLA_BEARER_MAX + 1] = {};
+ struct nlattr *opts[TIPC_NLA_UDP_MAX + 1] = {};
+
+ mnl_attr_parse(nlh, sizeof(*genl), parse_attrs, info);
+ if (!info[TIPC_NLA_BEARER])
+ return MNL_CB_ERROR;
+
+ mnl_attr_parse_nested(info[TIPC_NLA_BEARER], parse_attrs, attrs);
+ if (!attrs[TIPC_NLA_BEARER_UDP_OPTS])
+ return MNL_CB_ERROR;
+
+ mnl_attr_parse_nested(attrs[TIPC_NLA_BEARER_UDP_OPTS], parse_attrs, opts);
+ if (!opts[TIPC_NLA_UDP_LOCAL])
+ return MNL_CB_ERROR;
+
+ if ((cb_data->attr == TIPC_NLA_UDP_REMOTE) &&
+ (cb_data->prop == UDP_PROP_IP) &&
+ opts[TIPC_NLA_UDP_MULTI_REMOTEIP]) {
+ struct mnlu_gen_socket bearer_nlg;
+ struct nlattr *attr;
+ struct nlmsghdr *h;
+ const char *bname;
+ int err = 0;
+
+ err = mnlu_gen_socket_open(&bearer_nlg, TIPC_GENL_V2_NAME,
+ TIPC_GENL_V2_VERSION);
+ if (err)
+ return -1;
+
+ h = mnlu_gen_socket_cmd_prepare(&bearer_nlg,
+ TIPC_NL_UDP_GET_REMOTEIP,
+ NLM_F_REQUEST | NLM_F_DUMP);
+ if (!h) {
+ fprintf(stderr, "error, message initialization failed\n");
+ mnlu_gen_socket_close(&bearer_nlg);
+ return -1;
+ }
+
+ attr = mnl_attr_nest_start(h, TIPC_NLA_BEARER);
+ bname = mnl_attr_get_str(attrs[TIPC_NLA_BEARER_NAME]);
+ mnl_attr_put_strz(h, TIPC_NLA_BEARER_NAME, bname);
+ mnl_attr_nest_end(h, attr);
+
+ err = mnlu_gen_socket_sndrcv(&bearer_nlg, h,
+ bearer_dump_udp_cb, NULL);
+ mnlu_gen_socket_close(&bearer_nlg);
+ return err;
+ }
+
+ addr = mnl_attr_get_payload(opts[cb_data->attr]);
+
+ if (addr->ss_family == AF_INET) {
+ struct sockaddr_in *ipv4 = (struct sockaddr_in *) addr;
+
+ switch (cb_data->prop) {
+ case UDP_PROP_IP:
+ printf("%s\n", inet_ntoa(ipv4->sin_addr));
+ break;
+ case UDP_PROP_PORT:
+ printf("%u\n", ntohs(ipv4->sin_port));
+ break;
+ default:
+ return MNL_CB_ERROR;
+ }
+
+ } else if (addr->ss_family == AF_INET6) {
+ char straddr[INET6_ADDRSTRLEN];
+ struct sockaddr_in6 *ipv6 = (struct sockaddr_in6 *) addr;
+
+ switch (cb_data->prop) {
+ case UDP_PROP_IP:
+ if (!inet_ntop(AF_INET6, &ipv6->sin6_addr, straddr,
+ sizeof(straddr))) {
+ fprintf(stderr, "error, parsing IPv6 addr\n");
+ return MNL_CB_ERROR;
+ }
+ printf("%s\n", straddr);
+ break;
+ case UDP_PROP_PORT:
+ printf("%u\n", ntohs(ipv6->sin6_port));
+ break;
+ default:
+ return MNL_CB_ERROR;
+ }
+
+ } else {
+ return MNL_CB_ERROR;
+ }
+
+ return MNL_CB_OK;
+}
+
+static int bearer_get_cb(const struct nlmsghdr *nlh, void *data)
+{
+ int *prop = data;
+ struct genlmsghdr *genl = mnl_nlmsg_get_payload(nlh);
+ struct nlattr *info[TIPC_NLA_MAX + 1] = {};
+ struct nlattr *attrs[TIPC_NLA_BEARER_MAX + 1] = {};
+ struct nlattr *props[TIPC_NLA_PROP_MAX + 1] = {};
+
+ mnl_attr_parse(nlh, sizeof(*genl), parse_attrs, info);
+ if (!info[TIPC_NLA_BEARER])
+ return MNL_CB_ERROR;
+
+ mnl_attr_parse_nested(info[TIPC_NLA_BEARER], parse_attrs, attrs);
+ if (!attrs[TIPC_NLA_BEARER_PROP])
+ return MNL_CB_ERROR;
+
+ mnl_attr_parse_nested(attrs[TIPC_NLA_BEARER_PROP], parse_attrs, props);
+ if (!props[*prop])
+ return MNL_CB_ERROR;
+
+ printf("%u\n", mnl_attr_get_u32(props[*prop]));
+
+ return MNL_CB_OK;
+}
+
+static int cmd_bearer_get_media(struct nlmsghdr *nlh, const struct cmd *cmd,
+ struct cmdl *cmdl, void *data)
+{
+ int err;
+ char *media;
+ struct opt *opt;
+ struct cb_data cb_data = {0};
+ struct nlattr *attrs;
+ struct opt opts[] = {
+ { "localip", OPT_KEY, NULL },
+ { "localport", OPT_KEY, NULL },
+ { "remoteip", OPT_KEY, NULL },
+ { "remoteport", OPT_KEY, NULL },
+ { "name", OPT_KEYVAL, NULL },
+ { "media", OPT_KEYVAL, NULL },
+ { NULL }
+ };
+ struct tipc_sup_media sup_media[] = {
+ { "udp", "name", cmd_bearer_get_udp_help},
+ { NULL, },
+ };
+
+ /* Rewind optind to include media in the option list */
+ cmdl->optind--;
+ if (parse_opts(opts, cmdl) < 0)
+ return -EINVAL;
+
+ if (!(opt = get_opt(opts, "media"))) {
+ fprintf(stderr, "error, missing media value\n");
+ return -EINVAL;
+ }
+ media = opt->val;
+
+ if (help_flag) {
+ cmd_bearer_get_udp_help(cmdl, media);
+ return -EINVAL;
+ }
+ if (strcmp(media, "udp") != 0) {
+ fprintf(stderr, "error, no \"%s\" media specific options\n", media);
+ return -EINVAL;
+ }
+ if (!(opt = get_opt(opts, "name"))) {
+ fprintf(stderr, "error, missing media name\n");
+ return -EINVAL;
+ }
+
+ nlh = msg_init(TIPC_NL_BEARER_GET);
+ if (!nlh) {
+ fprintf(stderr, "error, message initialisation failed\n");
+ return -1;
+ }
+
+ attrs = mnl_attr_nest_start(nlh, TIPC_NLA_BEARER);
+ err = nl_add_bearer_name(nlh, cmd, cmdl, opts, sup_media);
+ if (err)
+ return err;
+ mnl_attr_nest_end(nlh, attrs);
+ cb_data.nlh = nlh;
+
+ if (has_opt(opts, "localip")) {
+ cb_data.attr = TIPC_NLA_UDP_LOCAL;
+ cb_data.prop = UDP_PROP_IP;
+ return msg_doit(nlh, bearer_get_udp_cb, &cb_data);
+ } else if (has_opt(opts, "localport")) {
+ cb_data.attr = TIPC_NLA_UDP_LOCAL;
+ cb_data.prop = UDP_PROP_PORT;
+ return msg_doit(nlh, bearer_get_udp_cb, &cb_data);
+ } else if (has_opt(opts, "remoteip")) {
+ cb_data.attr = TIPC_NLA_UDP_REMOTE;
+ cb_data.prop = UDP_PROP_IP;
+ return msg_doit(nlh, bearer_get_udp_cb, &cb_data);
+ } else if (has_opt(opts, "remoteport")) {
+ cb_data.attr = TIPC_NLA_UDP_REMOTE;
+ cb_data.prop = UDP_PROP_PORT;
+ return msg_doit(nlh, bearer_get_udp_cb, &cb_data);
+ }
+ fprintf(stderr, "error, missing UDP option\n");
+ return -EINVAL;
+}
+
+static int cmd_bearer_get_prop(struct nlmsghdr *nlh, const struct cmd *cmd,
+ struct cmdl *cmdl, void *data)
+{
+ int err;
+ int prop;
+ struct nlattr *attrs;
+ struct opt opts[] = {
+ { "device", OPT_KEYVAL, NULL },
+ { "media", OPT_KEYVAL, NULL },
+ { "name", OPT_KEYVAL, NULL },
+ { NULL }
+ };
+ struct tipc_sup_media sup_media[] = {
+ { "udp", "name", cmd_bearer_get_udp_help},
+ { "eth", "device", cmd_bearer_get_l2_help },
+ { "ib", "device", cmd_bearer_get_l2_help },
+ { NULL, },
+ };
+
+ if (help_flag) {
+ (cmd->help)(cmdl);
+ return -EINVAL;
+ }
+
+ if (strcmp(cmd->cmd, "priority") == 0)
+ prop = TIPC_NLA_PROP_PRIO;
+ else if ((strcmp(cmd->cmd, "tolerance") == 0))
+ prop = TIPC_NLA_PROP_TOL;
+ else if ((strcmp(cmd->cmd, "window") == 0))
+ prop = TIPC_NLA_PROP_WIN;
+ else if ((strcmp(cmd->cmd, "mtu") == 0))
+ prop = TIPC_NLA_PROP_MTU;
+ else
+ return -EINVAL;
+
+ if (parse_opts(opts, cmdl) < 0)
+ return -EINVAL;
+
+ if (prop == TIPC_NLA_PROP_MTU) {
+ char *media = cmd_get_media_type(cmd, cmdl, opts);
+
+ if (!media)
+ return -EINVAL;
+ else if (strcmp(media, "udp")) {
+ fprintf(stderr, "error, not supported for media\n");
+ return -EINVAL;
+ }
+ }
+
+ nlh = msg_init(TIPC_NL_BEARER_GET);
+ if (!nlh) {
+ fprintf(stderr, "error, message initialisation failed\n");
+ return -1;
+ }
+
+ attrs = mnl_attr_nest_start(nlh, TIPC_NLA_BEARER);
+ err = nl_add_bearer_name(nlh, cmd, cmdl, opts, sup_media);
+ if (err)
+ return err;
+ mnl_attr_nest_end(nlh, attrs);
+
+ return msg_doit(nlh, bearer_get_cb, &prop);
+}
+
+static int cmd_bearer_get(struct nlmsghdr *nlh, const struct cmd *cmd,
+ struct cmdl *cmdl, void *data)
+{
+ const struct cmd cmds[] = {
+ { "priority", cmd_bearer_get_prop, cmd_bearer_get_help },
+ { "tolerance", cmd_bearer_get_prop, cmd_bearer_get_help },
+ { "window", cmd_bearer_get_prop, cmd_bearer_get_help },
+ { "mtu", cmd_bearer_get_prop, cmd_bearer_get_help },
+ { "media", cmd_bearer_get_media, cmd_bearer_get_help },
+ { NULL }
+ };
+
+ return run_cmd(nlh, cmd, cmds, cmdl, NULL);
+}
+
+static int bearer_list_cb(const struct nlmsghdr *nlh, void *data)
+{
+ struct genlmsghdr *genl = mnl_nlmsg_get_payload(nlh);
+ struct nlattr *info[TIPC_NLA_MAX + 1] = {};
+ struct nlattr *attrs[TIPC_NLA_BEARER_MAX + 1] = {};
+
+ mnl_attr_parse(nlh, sizeof(*genl), parse_attrs, info);
+ if (!info[TIPC_NLA_BEARER]) {
+ fprintf(stderr, "No bearer in netlink response\n");
+ return MNL_CB_ERROR;
+ }
+
+ mnl_attr_parse_nested(info[TIPC_NLA_BEARER], parse_attrs, attrs);
+ if (!attrs[TIPC_NLA_BEARER_NAME]) {
+ fprintf(stderr, "Bearer name missing in netlink response\n");
+ return MNL_CB_ERROR;
+ }
+
+ printf("%s\n", mnl_attr_get_str(attrs[TIPC_NLA_BEARER_NAME]));
+
+ return MNL_CB_OK;
+}
+
+static int cmd_bearer_list(struct nlmsghdr *nlh, const struct cmd *cmd,
+ struct cmdl *cmdl, void *data)
+{
+ if (help_flag) {
+ fprintf(stderr, "Usage: %s bearer list\n", cmdl->argv[0]);
+ return -EINVAL;
+ }
+
+ nlh = msg_init(TIPC_NL_BEARER_GET);
+ if (!nlh) {
+ fprintf(stderr, "error, message initialisation failed\n");
+ return -1;
+ }
+
+ return msg_dumpit(nlh, bearer_list_cb, NULL);
+}
+
+void cmd_bearer_help(struct cmdl *cmdl)
+{
+ fprintf(stderr,
+ "Usage: %s bearer COMMAND [ARGS] ...\n"
+ "\n"
+ "COMMANDS\n"
+ " add - Add data to existing bearer\n"
+ " enable - Enable a bearer\n"
+ " disable - Disable a bearer\n"
+ " set - Set various bearer properties\n"
+ " get - Get various bearer properties\n"
+ " list - List bearers\n", cmdl->argv[0]);
+}
+
+int cmd_bearer(struct nlmsghdr *nlh, const struct cmd *cmd, struct cmdl *cmdl,
+ void *data)
+{
+ const struct cmd cmds[] = {
+ { "add", cmd_bearer_add, cmd_bearer_add_help },
+ { "disable", cmd_bearer_disable, cmd_bearer_disable_help },
+ { "enable", cmd_bearer_enable, cmd_bearer_enable_help },
+ { "get", cmd_bearer_get, cmd_bearer_get_help },
+ { "list", cmd_bearer_list, NULL },
+ { "set", cmd_bearer_set, cmd_bearer_set_help },
+ { NULL }
+ };
+
+ return run_cmd(nlh, cmd, cmds, cmdl, NULL);
+}