diff options
Diffstat (limited to 'networking/brctl.c')
| -rw-r--r-- | networking/brctl.c | 180 |
1 files changed, 114 insertions, 66 deletions
diff --git a/networking/brctl.c b/networking/brctl.c index 2bb03dd82..bd13878b2 100644 --- a/networking/brctl.c +++ b/networking/brctl.c @@ -25,12 +25,6 @@ /* #define BRCTL_USE_INTERNAL 0 */ /* use exact conversion */ #define BRCTL_USE_INTERNAL 1 -#ifdef ENABLE_FEATURE_BRCTL_SHOW -#error Remove these -#endif -#define ENABLE_FEATURE_BRCTL_SHOW 0 -#define USE_FEATURE_BRCTL_SHOW(...) - #if ENABLE_FEATURE_BRCTL_FANCY #include <linux/if_bridge.h> @@ -96,7 +90,7 @@ int brctl_main(int argc ATTRIBUTE_UNUSED, char **argv) "setageing\0" "setfd\0" "sethello\0" "setmaxage\0" "setpathcost\0" "setportprio\0" "setbridgeprio\0" ) - USE_FEATURE_BRCTL_SHOW("showmacs\0" "show\0"); + USE_FEATURE_BRCTL_SHOW("showmacs\0" "show\0"); enum { ARG_addbr = 0, ARG_delbr, ARG_addif, ARG_delif USE_FEATURE_BRCTL_FANCY(, @@ -104,31 +98,87 @@ int brctl_main(int argc ATTRIBUTE_UNUSED, char **argv) ARG_setageing, ARG_setfd, ARG_sethello, ARG_setmaxage, ARG_setpathcost, ARG_setportprio, ARG_setbridgeprio ) - USE_FEATURE_BRCTL_SHOW(, ARG_showmacs, ARG_show) + USE_FEATURE_BRCTL_SHOW(, ARG_showmacs, ARG_show) }; int fd; smallint key; struct ifreq ifr; char *br, *brif; -#if ENABLE_FEATURE_BRCTL_FANCY - unsigned long args[4] = {0, 0, 0, 0}; - int port; - int tmp; -#endif argv++; while (*argv) { +#if ENABLE_FEATURE_BRCTL_FANCY + int ifidx[MAX_PORTS]; + unsigned long args[4]; + ifr.ifr_data = (char *) &args; +#endif + key = index_in_strings(keywords, *argv); if (key == -1) /* no match found in keywords array, bail out. */ bb_error_msg_and_die(bb_msg_invalid_arg, *argv, applet_name); argv++; + fd = xsocket(AF_INET, SOCK_STREAM, 0); + #if ENABLE_FEATURE_BRCTL_SHOW if (key == ARG_show) { /* show */ - goto out; /* FIXME: implement me! :) */ + char brname[IFNAMSIZ]; + int bridx[MAX_PORTS]; + int i, num; + arm_ioctl(args, BRCTL_GET_BRIDGES, + (unsigned long) bridx, MAX_PORTS); + num = xioctl(fd, SIOCGIFBR, args); + printf("bridge name\tbridge id\t\tSTP enabled\tinterfaces\n"); + for (i = 0; i < num; i++) { + char ifname[IFNAMSIZ]; + int j, tabs; + struct __bridge_info bi; + unsigned char *x; + + if (!if_indextoname(bridx[i], brname)) + bb_perror_msg_and_die("can't get bridge name for index %d", i); + safe_strncpy(ifr.ifr_name, brname, IFNAMSIZ); + + arm_ioctl(args, BRCTL_GET_BRIDGE_INFO, + (unsigned long) &bi, 0); + xioctl(fd, SIOCDEVPRIVATE, &ifr); + printf("%s\t\t", brname); + + /* print bridge id */ + x = (unsigned char *) &bi.bridge_id; + for (j = 0; j < 8; j++) { + printf("%.2x", x[j]); + if (j == 1) + bb_putchar('.'); + } + printf(bi.stp_enabled ? "\tyes" : "\tno"); + + /* print interface list */ + arm_ioctl(args, BRCTL_GET_PORT_LIST, + (unsigned long) ifidx, MAX_PORTS); + xioctl(fd, SIOCDEVPRIVATE, &ifr); + tabs = 0; + for (j = 0; j < MAX_PORTS; j++) { + if (!ifidx[j]) + continue; + if (!if_indextoname(ifidx[j], ifname)) + bb_perror_msg_and_die("can't get interface name for index %d", j); + if (tabs) + printf("\t\t\t\t\t"); + else + tabs = 1; + printf("\t\t%s\n", ifname); + } + if (!tabs) /* bridge has no interfaces */ + bb_putchar('\n'); + } + goto done; } #endif - fd = xsocket(AF_INET, SOCK_STREAM, 0); + + if (!*argv) /* all but 'show' need at least one argument */ + bb_show_usage(); + br = *argv++; if (key == ARG_addbr || key == ARG_delbr) { /* addbr or delbr */ @@ -137,11 +187,13 @@ int brctl_main(int argc ATTRIBUTE_UNUSED, char **argv) br, "bridge %s", br); goto done; } - if (!*argv) /* all but 'show' need at least one argument */ + + if (!*argv) /* all but 'addif/delif' need at least two arguments */ bb_show_usage(); + safe_strncpy(ifr.ifr_name, br, IFNAMSIZ); if (key == ARG_addif || key == ARG_delif) { /* addif or delif */ - brif = *argv++; + brif = *argv; ifr.ifr_ifindex = if_nametoindex(brif); if (!ifr.ifr_ifindex) { bb_perror_msg_and_die("iface %s", brif); @@ -149,76 +201,72 @@ int brctl_main(int argc ATTRIBUTE_UNUSED, char **argv) ioctl_or_perror_and_die(fd, key == ARG_addif ? SIOCBRADDIF : SIOCBRDELIF, &ifr, "bridge %s", br); - goto done; + goto done_next_argv; } #if ENABLE_FEATURE_BRCTL_FANCY - ifr.ifr_data = (char *) &args; if (key == ARG_stp) { /* stp */ /* FIXME: parsing yes/y/on/1 versus no/n/off/0 is too involved */ arm_ioctl(args, BRCTL_SET_BRIDGE_STP_STATE, (unsigned)(**argv - '0'), 0); goto fire; } - if ((unsigned)(key - ARG_stp) < 5) { /* time related ops */ - unsigned long op = (key == ARG_setageing) ? BRCTL_SET_AGEING_TIME : - (key == ARG_setfd) ? BRCTL_SET_BRIDGE_FORWARD_DELAY : - (key == ARG_sethello) ? BRCTL_SET_BRIDGE_HELLO_TIME : - /*key == ARG_setmaxage*/ BRCTL_SET_BRIDGE_MAX_AGE; - arm_ioctl(args, op, str_to_jiffies(*argv), 0); + if ((unsigned)(key - ARG_setageing) < 4) { /* time related ops */ + static const uint8_t ops[] ALIGN1 = { + BRCTL_SET_AGEING_TIME, /* ARG_setageing */ + BRCTL_SET_BRIDGE_FORWARD_DELAY, /* ARG_setfd */ + BRCTL_SET_BRIDGE_HELLO_TIME, /* ARG_sethello */ + BRCTL_SET_BRIDGE_MAX_AGE /* ARG_setmaxage */ + }; + arm_ioctl(args, ops[key - ARG_setageing], str_to_jiffies(*argv), 0); goto fire; } - port = -1; - if (key == ARG_setpathcost || key == ARG_setportprio) {/* get portnum */ - int ifidx[MAX_PORTS]; - unsigned i; - - port = if_nametoindex(*argv); - if (!port) - bb_error_msg_and_die(bb_msg_invalid_arg, *argv, "port"); - argv++; - memset(ifidx, 0, sizeof ifidx); - arm_ioctl(args, BRCTL_GET_PORT_LIST, (unsigned long)ifidx, - MAX_PORTS); - xioctl(fd, SIOCDEVPRIVATE, &ifr); - for (i = 0; i < MAX_PORTS; i++) { - if (ifidx[i] == port) { - port = i; - break; - } - } - } if (key == ARG_setpathcost || key == ARG_setportprio || key == ARG_setbridgeprio ) { - unsigned long op = (key == ARG_setpathcost) ? BRCTL_SET_PATH_COST : - (key == ARG_setportprio) ? BRCTL_SET_PORT_PRIORITY : - /*key == ARG_setbridgeprio*/ BRCTL_SET_BRIDGE_PRIORITY; - unsigned long arg1 = port; - unsigned long arg2; -# if BRCTL_USE_INTERNAL - tmp = xatoi(*argv); -# else - if (sscanf(*argv, "%i", &tmp) != 1) - bb_error_msg_and_die(bb_msg_invalid_arg, *argv, - key == ARG_setpathcost ? "cost" : "prio"); -# endif + static const uint8_t ops[] ALIGN1 = { + BRCTL_SET_PATH_COST, /* ARG_setpathcost */ + BRCTL_SET_PORT_PRIORITY, /* ARG_setportprio */ + BRCTL_SET_BRIDGE_PRIORITY /* ARG_setbridgeprio */ + }; + int port = -1; + unsigned arg1, arg2; + + if (key != ARG_setbridgeprio) { + /* get portnum */ + unsigned i; + + port = if_nametoindex(*argv++); + if (!port) + bb_error_msg_and_die(bb_msg_invalid_arg, *argv, "port"); + memset(ifidx, 0, sizeof ifidx); + arm_ioctl(args, BRCTL_GET_PORT_LIST, (unsigned long)ifidx, + MAX_PORTS); + xioctl(fd, SIOCDEVPRIVATE, &ifr); + for (i = 0; i < MAX_PORTS; i++) { + if (ifidx[i] == port) { + port = i; + break; + } + } + } + arg1 = port; + arg2 = xatoi_u(*argv); if (key == ARG_setbridgeprio) { - arg1 = tmp; + arg1 = arg2; arg2 = 0; - } else - arg2 = tmp; - arm_ioctl(args, op, arg1, arg2); + } + arm_ioctl(args, ops[key - ARG_setpathcost], arg1, arg2); } fire: - /* Execute the previously set command. */ + /* Execute the previously set command */ xioctl(fd, SIOCDEVPRIVATE, &ifr); - argv++; #endif + done_next_argv: + argv++; done: - if (ENABLE_FEATURE_CLEAN_UP) - close(fd); + close(fd); } - USE_FEATURE_BRCTL_SHOW(out:) + return EXIT_SUCCESS; } |