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-rw-r--r--tipc/socket.c146
1 files changed, 146 insertions, 0 deletions
diff --git a/tipc/socket.c b/tipc/socket.c
new file mode 100644
index 0000000..4d376e0
--- /dev/null
+++ b/tipc/socket.c
@@ -0,0 +1,146 @@
+/* SPDX-License-Identifier: GPL-2.0-or-later */
+/*
+ * socket.c TIPC socket functionality.
+ *
+ * Authors: Richard Alpe <richard.alpe@ericsson.com>
+ */
+
+#include <stdio.h>
+#include <errno.h>
+
+#include <linux/tipc.h>
+#include <linux/tipc_netlink.h>
+#include <linux/genetlink.h>
+#include <libmnl/libmnl.h>
+
+#include "mnl_utils.h"
+#include "cmdl.h"
+#include "msg.h"
+#include "socket.h"
+
+#define PORTID_STR_LEN 45 /* Four u32 and five delimiter chars */
+
+static int publ_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_SOCK_MAX + 1] = {};
+
+ mnl_attr_parse(nlh, sizeof(*genl), parse_attrs, info);
+ if (!info[TIPC_NLA_PUBL])
+ return MNL_CB_ERROR;
+
+ mnl_attr_parse_nested(info[TIPC_NLA_PUBL], parse_attrs, attrs);
+
+ printf(" bound to {%u,%u,%u}\n",
+ mnl_attr_get_u32(attrs[TIPC_NLA_PUBL_TYPE]),
+ mnl_attr_get_u32(attrs[TIPC_NLA_PUBL_LOWER]),
+ mnl_attr_get_u32(attrs[TIPC_NLA_PUBL_UPPER]));
+
+ return MNL_CB_OK;
+}
+
+static int publ_list(uint32_t sock)
+{
+ struct mnlu_gen_socket sock_nlg;
+ struct nlmsghdr *nlh;
+ struct nlattr *nest;
+ int err;
+
+ err = mnlu_gen_socket_open(&sock_nlg, TIPC_GENL_V2_NAME,
+ TIPC_GENL_V2_VERSION);
+ if (err)
+ return -1;
+
+ nlh = mnlu_gen_socket_cmd_prepare(&sock_nlg, TIPC_NL_PUBL_GET,
+ NLM_F_REQUEST | NLM_F_DUMP);
+ if (!nlh) {
+ fprintf(stderr, "error, message initialisation failed\n");
+ mnlu_gen_socket_close(&sock_nlg);
+ return -1;
+ }
+
+ nest = mnl_attr_nest_start(nlh, TIPC_NLA_SOCK);
+ mnl_attr_put_u32(nlh, TIPC_NLA_SOCK_REF, sock);
+ mnl_attr_nest_end(nlh, nest);
+
+ err = mnlu_gen_socket_sndrcv(&sock_nlg, nlh, publ_list_cb, NULL);
+ mnlu_gen_socket_close(&sock_nlg);
+ return err;
+}
+
+static int sock_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_SOCK_MAX + 1] = {};
+
+ mnl_attr_parse(nlh, sizeof(*genl), parse_attrs, info);
+ if (!info[TIPC_NLA_SOCK])
+ return MNL_CB_ERROR;
+
+ mnl_attr_parse_nested(info[TIPC_NLA_SOCK], parse_attrs, attrs);
+ if (!attrs[TIPC_NLA_SOCK_REF])
+ return MNL_CB_ERROR;
+
+ printf("socket %u\n", mnl_attr_get_u32(attrs[TIPC_NLA_SOCK_REF]));
+
+ if (attrs[TIPC_NLA_SOCK_CON]) {
+ uint32_t node;
+ struct nlattr *con[TIPC_NLA_CON_MAX + 1] = {};
+
+ mnl_attr_parse_nested(attrs[TIPC_NLA_SOCK_CON], parse_attrs, con);
+ node = mnl_attr_get_u32(con[TIPC_NLA_CON_NODE]);
+
+ printf(" connected to %x:%u", node,
+ mnl_attr_get_u32(con[TIPC_NLA_CON_SOCK]));
+
+ if (con[TIPC_NLA_CON_FLAG])
+ printf(" via {%u,%u}\n",
+ mnl_attr_get_u32(con[TIPC_NLA_CON_TYPE]),
+ mnl_attr_get_u32(con[TIPC_NLA_CON_INST]));
+ else
+ printf("\n");
+ } else if (attrs[TIPC_NLA_SOCK_HAS_PUBL]) {
+ publ_list(mnl_attr_get_u32(attrs[TIPC_NLA_SOCK_REF]));
+ }
+
+ return MNL_CB_OK;
+}
+
+static int cmd_socket_list(struct nlmsghdr *nlh, const struct cmd *cmd,
+ struct cmdl *cmdl, void *data)
+{
+ if (help_flag) {
+ fprintf(stderr, "Usage: %s socket list\n", cmdl->argv[0]);
+ return -EINVAL;
+ }
+
+ nlh = msg_init(TIPC_NL_SOCK_GET);
+ if (!nlh) {
+ fprintf(stderr, "error, message initialisation failed\n");
+ return -1;
+ }
+
+ return msg_dumpit(nlh, sock_list_cb, NULL);
+}
+
+void cmd_socket_help(struct cmdl *cmdl)
+{
+ fprintf(stderr,
+ "Usage: %s socket COMMAND\n\n"
+ "Commands:\n"
+ " list - List sockets (ports)\n",
+ cmdl->argv[0]);
+}
+
+int cmd_socket(struct nlmsghdr *nlh, const struct cmd *cmd, struct cmdl *cmdl,
+ void *data)
+{
+ const struct cmd cmds[] = {
+ { "list", cmd_socket_list, NULL },
+ { NULL }
+ };
+
+ return run_cmd(nlh, cmd, cmds, cmdl, NULL);
+}