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Date: Mon, 12 Sep 2016 17:17:20 +0200
From: Parthasarathy Bhuvaragan <parthasarathy.bhuvaragan@...csson.com>
To: <netdev@...r.kernel.org>
CC: <tipc-discussion@...ts.sourceforge.net>, <jon.maloy@...csson.com>,
<maloy@...jonn.com>
Subject: [PATCH iproute2 net-next v1 6/7] tipc: add link monitor list
In this commit, we list the monitor attributes. By default it lists
the attributes for all bearers, otherwise the specified bearer.
A sample usage is shown below:
$ tipc link monitor list
bearer eth:data0
node status monitored generation applied_node_status [non_applied_node:status]
1.1.1 up direct 16 UU []
1.1.2 up direct 16 UU []
1.1.3 up direct 16 UU []
bearer eth:data1
node status monitored generation applied_node_status [non_applied_node:status]
1.1.1 up direct 2 UU []
1.1.2 up direct 3 UU []
1.1.3 up direct 3 UU []
$ tipc link monitor list media eth device data0
bearer eth:data0
node status monitored generation applied_node_status [non_applied_node:status]
1.1.1 up direct 16 UU []
1.1.2 up direct 16 UU []
1.1.3 up direct 16 UU []
$ tipc link monitor list -h
Usage: tipc monitor list [ media MEDIA ARGS...]
MEDIA
udp - User Datagram Protocol
ib - Infiniband
eth - Ethernet
Acked-by: Jon Maloy <jon.maloy@...csson.com>
Tested-by: Jon Maloy <jon.maloy@...csson.com>
Signed-off-by: Parthasarathy Bhuvaragan <parthasarathy.bhuvaragan@...csson.com>
---
tipc/link.c | 237 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
1 file changed, 237 insertions(+)
diff --git a/tipc/link.c b/tipc/link.c
index df93409f2173..0b5c0491a35f 100644
--- a/tipc/link.c
+++ b/tipc/link.c
@@ -22,6 +22,7 @@
#include "cmdl.h"
#include "msg.h"
#include "link.h"
+#include "bearer.h"
static int link_list_cb(const struct nlmsghdr *nlh, void *data)
{
@@ -558,6 +559,240 @@ static int cmd_link_mon_summary(struct nlmsghdr *nlh, const struct cmd *cmd,
return msg_dumpit(nlh, link_mon_summary_cb, NULL);
}
+#define STATUS_WIDTH 7
+#define MAX_NODE_WIDTH 14 /* 255.4095.4095 */
+#define MAX_DOM_GEN_WIDTH 11 /* 65535 */
+#define DIRECTLY_MON_WIDTH 10
+
+#define APPL_NODE_STATUS_WIDTH 5
+
+static int map_get(uint64_t up_map, int i)
+{
+ return (up_map & (1 << i)) >> i;
+}
+
+/* print the applied members, since we know the the members
+ * are listed in ascending order, we print only the state */
+static void link_mon_print_applied(uint16_t applied, uint64_t up_map)
+{
+ int i;
+ char state;
+
+ for (i = 0; i < applied; i++) {
+ /* print the delimiter for every -n- entry */
+ if (i && !(i % APPL_NODE_STATUS_WIDTH))
+ printf(",");
+
+ state = map_get(up_map, i) ? 'U' : 'D';
+ printf("%c", state);
+ }
+}
+
+/* print the non applied members, since we dont know
+ * the members, we print them along with the state */
+static void link_mon_print_non_applied(uint16_t applied, uint16_t member_cnt,
+ uint64_t up_map, uint32_t *members)
+{
+ int i;
+ char state;
+
+ printf(" [");
+ for (i = applied; i < member_cnt; i++) {
+ char addr_str[16];
+
+ /* print the delimiter for every entry */
+ if (i != applied)
+ printf(",");
+
+ sprintf(addr_str, "%u.%u.%u:", tipc_zone(members[i]),
+ tipc_cluster(members[i]), tipc_node(members[i]));
+ state = map_get(up_map, i) ? 'U' : 'D';
+ printf("%s%c", addr_str, state);
+ }
+ printf("]");
+}
+
+static void link_mon_print_peer_state(const uint32_t addr, const char *status,
+ const char *monitored,
+ const uint32_t dom_gen)
+{
+ char addr_str[16];
+
+ sprintf(addr_str, "%u.%u.%u", tipc_zone(addr), tipc_cluster(addr),
+ tipc_node(addr));
+
+ printf("%-*s", MAX_NODE_WIDTH, addr_str);
+ printf("%-*s", STATUS_WIDTH, status);
+ printf("%-*s", DIRECTLY_MON_WIDTH, monitored);
+ printf("%-*u", MAX_DOM_GEN_WIDTH, dom_gen);
+}
+
+static int link_mon_peer_list_cb(const struct nlmsghdr *nlh, void *data)
+{
+ struct genlmsghdr *genl = mnl_nlmsg_get_payload(nlh);
+ struct nlattr *attrs[TIPC_NLA_MON_PEER_MAX + 1] = {};
+ struct nlattr *info[TIPC_NLA_MAX + 1] = {};
+ uint16_t member_cnt;
+ uint32_t applied;
+ uint32_t dom_gen;
+ uint64_t up_map;
+ char status[16];
+ char monitored[16];
+
+ mnl_attr_parse(nlh, sizeof(*genl), parse_attrs, info);
+ if (!info[TIPC_NLA_MON_PEER])
+ return MNL_CB_ERROR;
+
+ mnl_attr_parse_nested(info[TIPC_NLA_MON_PEER], parse_attrs, attrs);
+
+ (attrs[TIPC_NLA_MON_PEER_LOCAL] || attrs[TIPC_NLA_MON_PEER_HEAD]) ?
+ strcpy(monitored, "direct") :
+ strcpy(monitored, "indirect");
+
+ attrs[TIPC_NLA_MON_PEER_UP] ?
+ strcpy(status, "up") :
+ strcpy(status, "down");
+
+ dom_gen = attrs[TIPC_NLA_MON_PEER_DOMGEN] ?
+ mnl_attr_get_u32(attrs[TIPC_NLA_MON_PEER_DOMGEN]) : 0;
+
+ link_mon_print_peer_state(mnl_attr_get_u32(attrs[TIPC_NLA_MON_PEER_ADDR]),
+ status, monitored, dom_gen);
+
+ applied = mnl_attr_get_u32(attrs[TIPC_NLA_MON_PEER_APPLIED]);
+
+ if (!applied)
+ goto exit;
+
+ up_map = mnl_attr_get_u64(attrs[TIPC_NLA_MON_PEER_UPMAP]);
+
+ member_cnt = mnl_attr_get_payload_len(attrs[TIPC_NLA_MON_PEER_MEMBERS]);
+
+ /* each tipc address occupies 4 bytes of payload, hence compensate it */
+ member_cnt /= sizeof(uint32_t);
+
+ link_mon_print_applied(applied, up_map);
+
+ link_mon_print_non_applied(applied, member_cnt, up_map,
+ mnl_attr_get_payload(attrs[TIPC_NLA_MON_PEER_MEMBERS]));
+
+exit:
+ printf("\n");
+
+ return MNL_CB_OK;
+}
+
+static int link_mon_peer_list(uint32_t mon_ref)
+{
+ struct nlmsghdr *nlh;
+ char buf[MNL_SOCKET_BUFFER_SIZE];
+ struct nlattr *nest;
+
+ if (!(nlh = msg_init(buf, TIPC_NL_MON_PEER_GET))) {
+ fprintf(stderr, "error, message initialisation failed\n");
+ return -1;
+ }
+
+ nest = mnl_attr_nest_start(nlh, TIPC_NLA_MON);
+ mnl_attr_put_u32(nlh, TIPC_NLA_MON_REF, mon_ref);
+ mnl_attr_nest_end(nlh, nest);
+
+ return msg_dumpit(nlh, link_mon_peer_list_cb, NULL);
+}
+
+static int link_mon_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_MON_MAX + 1] = {};
+ char *req_bearer = data;
+ const char *bname;
+ const char *title = "node status monitored generation "
+ "applied_node_status [non_applied_node:status]";
+
+ mnl_attr_parse(nlh, sizeof(*genl), parse_attrs, info);
+ if (!info[TIPC_NLA_MON])
+ return MNL_CB_ERROR;
+
+ mnl_attr_parse_nested(info[TIPC_NLA_MON], parse_attrs, attrs);
+
+ bname = mnl_attr_get_str(attrs[TIPC_NLA_MON_BEARER_NAME]);
+
+ if (*req_bearer && (strcmp(req_bearer, bname) != 0))
+ return MNL_CB_OK;
+
+ printf("\nbearer %s\n", bname);
+ printf("%s\n", title);
+
+ if (mnl_attr_get_u32(attrs[TIPC_NLA_MON_PEERCNT]))
+ link_mon_peer_list(mnl_attr_get_u32(attrs[TIPC_NLA_MON_REF]));
+
+ return MNL_CB_OK;
+}
+
+static void cmd_link_mon_list_help(struct cmdl *cmdl)
+{
+ fprintf(stderr, "Usage: %s monitor list [ media MEDIA ARGS...] \n\n",
+ cmdl->argv[0]);
+ print_bearer_media();
+}
+
+static void cmd_link_mon_list_l2_help(struct cmdl *cmdl, char *media)
+{
+ fprintf(stderr,
+ "Usage: %s monitor list media %s device DEVICE [OPTIONS]\n",
+ cmdl->argv[0], media);
+}
+
+static void cmd_link_mon_list_udp_help(struct cmdl *cmdl, char *media)
+{
+ fprintf(stderr,
+ "Usage: %s monitor list media udp name NAME \n\n",
+ cmdl->argv[0]);
+}
+
+static int cmd_link_mon_list(struct nlmsghdr *nlh, const struct cmd *cmd,
+ struct cmdl *cmdl, void *data)
+{
+ char buf[MNL_SOCKET_BUFFER_SIZE];
+ char bname[TIPC_MAX_BEARER_NAME] = {0};
+ struct opt opts[] = {
+ { "media", OPT_KEYVAL, NULL },
+ { "device", OPT_KEYVAL, NULL },
+ { "name", OPT_KEYVAL, NULL },
+ { NULL }
+ };
+ struct tipc_sup_media sup_media[] = {
+ { "udp", "name", cmd_link_mon_list_udp_help},
+ { "eth", "device", cmd_link_mon_list_l2_help },
+ { "ib", "device", cmd_link_mon_list_l2_help },
+ { NULL, },
+ };
+
+ int err;
+
+ if (parse_opts(opts, cmdl) < 0)
+ return -EINVAL;
+
+ if (get_opt(opts, "media")) {
+ if ((err = cmd_get_unique_bearer_name(cmd, cmdl, opts, bname,
+ sup_media)))
+ return err;
+ }
+
+ if (help_flag) {
+ cmd->help(cmdl);
+ return -EINVAL;
+ }
+
+ if (!(nlh = msg_init(buf, TIPC_NL_MON_GET))) {
+ fprintf(stderr, "error, message initialisation failed\n");
+ return -1;
+ }
+
+ return msg_dumpit(nlh, link_mon_list_cb, bname);
+}
+
static void cmd_link_mon_set_help(struct cmdl *cmdl)
{
fprintf(stderr, "Usage: %s monitor set PPROPERTY\n\n"
@@ -636,6 +871,7 @@ static void cmd_link_mon_help(struct cmdl *cmdl)
"COMMANDS\n"
" set - Set monitor properties\n"
" get - Get monitor properties\n"
+ " list - List all cluster members\n"
" summary - Show local node monitor summary\n",
cmdl->argv[0]);
}
@@ -646,6 +882,7 @@ static int cmd_link_mon(struct nlmsghdr *nlh, const struct cmd *cmd, struct cmdl
const struct cmd cmds[] = {
{ "set", cmd_link_mon_set, cmd_link_mon_set_help },
{ "get", cmd_link_mon_get, cmd_link_mon_get_help },
+ { "list", cmd_link_mon_list, cmd_link_mon_list_help },
{ "summary", cmd_link_mon_summary, NULL },
{ NULL }
};
--
2.1.4
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