brctl: add support for showstp command
function old new delta brctl_main 974 2339 +1365 show_bridge_timer - 93 +93 static.state_names - 48 +48 printf_xstrtou - 26 +26 packed_usage 33243 33253 +10 show_bridge 333 323 -10 ------------------------------------------------------------------------------ (add/remove: 3/0 grow/shrink: 2/1 up/down: 1542/-10) Total: 1532 bytes text data bss dec hex filename 999868 551 5612 1006031 f59cf busybox_old 1002309 551 5612 1008472 f6358 busybox_unstripped Signed-off-by: Martin Lewis <martin.lewis.x84@gmail.com> Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
This commit is contained in:
Martin Lewis
Denys Vlasenko
parent
42f454b13b
commit
6dcf563633
@ -54,6 +54,7 @@
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//usage: "\n delif BRIDGE IFACE Delete IFACE from BRIDGE"
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//usage: IF_FEATURE_BRCTL_FANCY(
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//usage: "\n stp BRIDGE 1/yes/on|0/no/off STP on/off"
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//usage: "\n showstp BRIDGE Show stp info"
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//usage: "\n setageing BRIDGE SECONDS Set ageing time"
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//usage: "\n setfd BRIDGE SECONDS Set bridge forward delay"
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//usage: "\n sethello BRIDGE SECONDS Set hello time"
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@ -65,7 +66,7 @@
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//usage: )
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// Not yet implemented:
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// hairpin BRIDGE IFACE on|off Hairpin on/off
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// showstp BRIDGE Show stp info
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#include "libbb.h"
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#include "common_bufsiz.h"
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@ -146,8 +147,7 @@ static int show_bridge(const char *name, int need_hdr)
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if (need_hdr)
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puts("bridge name\tbridge id\t\tSTP enabled\tinterfaces");
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printf("%s\t\t", name);
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printf("%s\t", filedata);
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printf("%s\t\t%s\t", name, filedata);
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strcpy(sfx, "stp_state");
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read_file(pathbuf);
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@ -279,6 +279,212 @@ static void show_bridge_macs(const char *name)
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free(fdb);
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}
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static void show_bridge_timer(const char *msg)
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{
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unsigned long long tvmsec = 10 * xstrtoull(filedata, 0);
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unsigned tv_sec = tvmsec / 1000;
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unsigned tv_msec = tvmsec % 1000;
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printf("%s%4u.%.2u", msg, tv_sec, tv_msec / 10);
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}
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static const char *show_bridge_state(unsigned state)
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{
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/* See linux/if_bridge.h, BR_STATE_ constants */
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static const char state_names[] =
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"disabled\0" //BR_STATE_DISABLED 0
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"listening\0" //BR_STATE_LISTENING 1
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"learning\0" //BR_STATE_LEARNING 2
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"forwarding\0" //BR_STATE_FORWARDING 3
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"blocking" //BR_STATE_BLOCKING 4
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;
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if (state < 5)
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return nth_string(state_names, state);
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return utoa(state);
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}
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static void printf_xstrtou(const char *fmt)
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{
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printf(fmt, xstrtou(filedata, 0));
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}
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static void show_bridge_port(const char *name)
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{
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char pathbuf[IFNAMSIZ + sizeof("/brport/forward_delay_timer") + 32];
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char *sfx;
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#if IFNAMSIZ == 16
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sfx = pathbuf + sprintf(pathbuf, "%.16s/brport/", name);
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#else
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sfx = pathbuf + sprintf(pathbuf, "%.*s/brport/", (int)IFNAMSIZ, name);
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#endif
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strcpy(sfx, "port_no");
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read_file(pathbuf);
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printf("%s (%u)\n", name, xstrtou(filedata, 0));
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strcpy(sfx + 5, "id"); // "port_id"
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read_file(pathbuf);
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printf_xstrtou(" port id\t\t%.4x");
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strcpy(sfx, "state");
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read_file(pathbuf);
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printf("\t\t\tstate\t\t%15s\n", show_bridge_state(xstrtou(filedata, 0)));
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strcpy(sfx, "designated_root");
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read_file(pathbuf);
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printf(" designated root\t%s", filedata);
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strcpy(sfx, "path_cost");
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read_file(pathbuf);
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printf_xstrtou("\tpath cost\t\t%4u\n");
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strcpy(sfx, "designated_bridge");
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read_file(pathbuf);
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printf(" designated bridge\t%s", filedata);
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strcpy(sfx, "message_age_timer");
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read_file(pathbuf);
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show_bridge_timer("\tmessage age timer\t");
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strcpy(sfx, "designated_port");
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read_file(pathbuf);
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printf_xstrtou("\n designated port\t%.4x");
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strcpy(sfx, "forward_delay_timer");
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read_file(pathbuf);
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show_bridge_timer("\t\t\tforward delay timer\t");
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strcpy(sfx, "designated_cost");
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read_file(pathbuf);
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printf_xstrtou("\n designated cost\t%4u");
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strcpy(sfx, "hold_timer");
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read_file(pathbuf);
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show_bridge_timer("\t\t\thold timer\t\t");
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printf("\n flags\t\t\t");
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strcpy(sfx, "config_pending");
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read_file(pathbuf);
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if (!LONE_CHAR(filedata, '0'))
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printf("CONFIG_PENDING ");
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strcpy(sfx, "change_ack");
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read_file(pathbuf);
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if (!LONE_CHAR(filedata, '0'))
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printf("TOPOLOGY_CHANGE_ACK ");
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strcpy(sfx, "hairpin_mode");
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read_file(pathbuf);
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if (!LONE_CHAR(filedata, '0'))
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printf_xstrtou("\n hairpin mode\t\t%4u");
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printf("\n\n");
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}
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static void show_bridge_ports(const char *name)
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{
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DIR *ifaces;
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struct dirent *ent;
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char pathbuf[IFNAMSIZ + sizeof("/brif") + 8];
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#if IFNAMSIZ == 16
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sprintf(pathbuf, "%.16s/brif", name);
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#else
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sprintf(pathbuf, "%.*s/brif", (int)IFNAMSIZ, name);
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#endif
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ifaces = opendir(pathbuf);
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if (ifaces) {
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while ((ent = readdir(ifaces)) != NULL) {
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if (DOT_OR_DOTDOT(ent->d_name))
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continue; /* . or .. */
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show_bridge_port(ent->d_name);
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}
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closedir(ifaces);
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}
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}
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static void show_bridge_stp(const char *name)
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{
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char pathbuf[IFNAMSIZ + sizeof("/bridge/topology_change_timer") + 32];
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char *sfx;
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#if IFNAMSIZ == 16
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sfx = pathbuf + sprintf(pathbuf, "%.16s/bridge/", name);
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#else
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sfx = pathbuf + sprintf(pathbuf, "%.*s/bridge/", (int)IFNAMSIZ, name);
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#endif
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strcpy(sfx, "bridge_id");
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if (read_file(pathbuf) < 0)
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bb_error_msg_and_die("bridge %s does not exist", name);
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printf("%s\n"
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" bridge id\t\t%s", name, filedata);
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strcpy(sfx, "root_id");
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read_file(pathbuf);
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printf("\n designated root\t%s", filedata);
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strcpy(sfx + 5, "port"); // "root_port"
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read_file(pathbuf);
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printf_xstrtou("\n root port\t\t%4u\t\t\t");
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strcpy(sfx + 6, "ath_cost"); // "root_path_cost"
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read_file(pathbuf);
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printf_xstrtou("path cost\t\t%4u\n");
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strcpy(sfx, "max_age");
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read_file(pathbuf);
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show_bridge_timer(" max age\t\t");
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show_bridge_timer("\t\t\tbridge max age\t\t");
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strcpy(sfx, "hello_time");
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read_file(pathbuf);
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show_bridge_timer("\n hello time\t\t");
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show_bridge_timer("\t\t\tbridge hello time\t");
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strcpy(sfx, "forward_delay");
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read_file(pathbuf);
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show_bridge_timer("\n forward delay\t\t");
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show_bridge_timer("\t\t\tbridge forward delay\t");
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strcpy(sfx, "ageing_time");
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read_file(pathbuf);
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show_bridge_timer("\n ageing time\t\t");
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strcpy(sfx, "hello_timer");
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read_file(pathbuf);
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show_bridge_timer("\n hello timer\t\t");
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strcpy(sfx, "tcn_timer");
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read_file(pathbuf);
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show_bridge_timer("\t\t\ttcn timer\t\t");
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strcpy(sfx, "topology_change_timer");
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read_file(pathbuf);
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show_bridge_timer("\n topology change timer\t");
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strcpy(sfx, "gc_timer");
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read_file(pathbuf);
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show_bridge_timer("\t\t\tgc timer\t\t");
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printf("\n flags\t\t\t");
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strcpy(sfx, "topology_change");
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read_file(pathbuf);
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if (!LONE_CHAR(filedata, '0'))
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printf("TOPOLOGY_CHANGE ");
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strcpy(sfx, "topology_change_detected");
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read_file(pathbuf);
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if (!LONE_CHAR(filedata, '0'))
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printf("TOPOLOGY_CHANGE_DETECTED ");
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printf("\n\n\n");
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show_bridge_ports(name);
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}
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#endif
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int brctl_main(int argc, char **argv) MAIN_EXTERNALLY_VISIBLE;
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@ -288,6 +494,7 @@ int brctl_main(int argc UNUSED_PARAM, char **argv)
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"addbr\0" "delbr\0" "addif\0" "delif\0"
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IF_FEATURE_BRCTL_FANCY(
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"stp\0"
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"showstp\0"
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"setageing\0" "setfd\0" "sethello\0" "setmaxage\0"
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"setpathcost\0" "setportprio\0"
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"setbridgeprio\0"
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@ -297,6 +504,7 @@ int brctl_main(int argc UNUSED_PARAM, char **argv)
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enum { ARG_addbr = 0, ARG_delbr, ARG_addif, ARG_delif
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IF_FEATURE_BRCTL_FANCY(,
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ARG_stp,
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ARG_showstp,
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ARG_setageing, ARG_setfd, ARG_sethello, ARG_setmaxage,
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ARG_setpathcost, ARG_setportprio,
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ARG_setbridgeprio,
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@ -388,6 +596,10 @@ int brctl_main(int argc UNUSED_PARAM, char **argv)
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show_bridge_macs(br);
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return EXIT_SUCCESS;
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}
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if (key == ARG_showstp) {
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show_bridge_stp(br);
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return EXIT_SUCCESS;
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}
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if (!*argv) /* all but 'addbr/delbr' need at least two arguments */
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bb_show_usage();
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