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-rw-r--r--toys/pending/brctl.c339
1 files changed, 339 insertions, 0 deletions
diff --git a/toys/pending/brctl.c b/toys/pending/brctl.c
new file mode 100644
index 00000000..867ca6db
--- /dev/null
+++ b/toys/pending/brctl.c
@@ -0,0 +1,339 @@
+/* brctl.c - ethernet bridge control
+ *
+ * Copyright 2013 Ashwini Kumar <ak.ashwini1981@gmail.com>
+ * Copyright 2013 Kyungwan Han <asura321@gmail.com>
+ *
+ * No Standard
+
+USE_BRCTL(NEWTOY(brctl, "<1", TOYFLAG_USR|TOYFLAG_SBIN))
+
+config BRCTL
+ bool "brctl"
+ default n
+ help
+ Usage: brctl COMMAND [BRIDGE [INTERFACE]]
+
+ Manage ethernet bridges
+
+ Commands:
+ show Show a list of bridges
+ addbr BRIDGE Create BRIDGE
+ delbr BRIDGE Delete BRIDGE
+ addif BRIDGE IFACE Add IFACE to BRIDGE
+ delif BRIDGE IFACE Delete IFACE from BRIDGE
+ setageing BRIDGE TIME Set ageing time
+ setfd BRIDGE TIME Set bridge forward delay
+ sethello BRIDGE TIME Set hello time
+ setmaxage BRIDGE TIME Set max message age
+ setpathcost BRIDGE PORT COST Set path cost
+ setportprio BRIDGE PORT PRIO Set port priority
+ setbridgeprio BRIDGE PRIO Set bridge priority
+ stp BRIDGE [1/yes/on|0/no/off] STP on/off
+*/
+
+#define FOR_brctl
+#include "toys.h"
+#include <linux/if_bridge.h>
+
+GLOBALS(
+ int sockfd;
+)
+#define MAX_BRIDGES 1024 //same is no of ports supported
+
+static void get_ports(char *bridge, int *indices)
+{
+ struct ifreq ifr;
+ int ifindices[MAX_BRIDGES];
+ unsigned long args[4] = { BRCTL_GET_PORT_LIST,
+ (unsigned long) ifindices, MAX_BRIDGES, 0 };
+
+ memset(ifindices, 0, MAX_BRIDGES);
+ args[1] = (unsigned long)ifindices;
+ strncpy(ifr.ifr_name, bridge, IFNAMSIZ);
+ ifr.ifr_data = (char *)args;
+ xioctl(TT.sockfd, SIOCDEVPRIVATE, &ifr);
+ if (indices) memcpy(indices, ifindices, sizeof(ifindices));
+}
+
+void get_br_info(char *bridge, struct __bridge_info *info)
+{
+ struct ifreq ifr;
+ unsigned long args[4] = { BRCTL_GET_BRIDGE_INFO,
+ (unsigned long) info, 0, 0 };
+
+ memset(info, 0, sizeof(*info));
+ strncpy(ifr.ifr_name, bridge, IFNAMSIZ);
+ ifr.ifr_data = (char *)args;
+
+ if (ioctl(TT.sockfd, SIOCDEVPRIVATE, &ifr) < 0) {
+ perror_msg("%s: can't get info %s\n", bridge, strerror(errno));
+ return;
+ }
+}
+
+void br_show(char **argv)
+{
+ struct __bridge_info info;
+ int num, cnt, i, j, ifindices[MAX_BRIDGES], pindices[MAX_BRIDGES];
+ unsigned long args[4] = { BRCTL_GET_BRIDGES,
+ (unsigned long)ifindices, MAX_BRIDGES,0 };
+ char br[IF_NAMESIZE], ifn[IF_NAMESIZE];
+
+ num = ioctl(TT.sockfd, SIOCGIFBR, args); //ret is num of bridges found
+ if (num < 0) error_exit("get bridges fail");
+ printf("bridge name\tbridge id\t\tSTP enabled\tinterfaces\n");
+
+ for (i = 0; i < num; i++) {
+ unsigned char *id;
+
+ if (!if_indextoname(ifindices[i], br)) perror_exit("interface not found");
+ get_br_info(br, &info);
+ id = (unsigned char*)&(info.bridge_id);
+ printf("%s\t\t",br);
+ printf("%.2x%.2x.%.2x%.2x%.2x%.2x%.2x%.2x", id[0], id[1],
+ id[2], id[3], id[4], id[5], id[6], id[7]);
+ printf("\t%s\t\t",(info.stp_enabled)?"yes" : "no");
+
+ memset(pindices, 0, sizeof(pindices));
+ get_ports(br, pindices);
+ for (j = 0, cnt = 0; j < MAX_BRIDGES; j++) {
+ if (!pindices[j]) continue;
+ if (!if_indextoname(pindices[j], ifn)) {
+ error_msg("no name for index :%d", pindices[j]);
+ continue;
+ }
+ if (cnt) printf("\n\t\t\t\t\t\t\t");
+ printf("%s", ifn);
+ cnt++;
+ }
+ xputc('\n');
+ }
+}
+
+void br_addbr(char **argv)
+{
+ char br[IFNAMSIZ];
+ unsigned long args[4] = {BRCTL_ADD_BRIDGE, (unsigned long) br, 0, 0};
+
+#ifdef SIOCBRADDBR
+ xioctl(TT.sockfd, SIOCBRADDBR, argv[0]);
+#else
+ strncpy(br, argv[0], IFNAMSIZ);
+ xioctl(TT.sockfd, SIOCSIFBR, args);
+#endif
+}
+
+void br_delbr(char **argv)
+{
+ char br[IFNAMSIZ];
+ unsigned long args[4] = {BRCTL_DEL_BRIDGE, (unsigned long) br, 0, 0};
+
+#ifdef SIOCBRDELBR
+ xioctl(TT.sockfd, SIOCBRDELBR, argv[0]);
+#else
+ strncpy(br, argv[0], IFNAMSIZ);
+ xioctl(TT.sockfd, SIOCSIFBR, args);
+#endif
+}
+
+void br_addif(char **argv)
+{
+ int index;
+ struct ifreq ifr;
+ unsigned long args[4] = {BRCTL_ADD_IF, 0, 0, 0};
+
+ if (!(index = if_nametoindex(argv[1]))) perror_exit("interface %s", argv[1]);
+#ifdef SIOCBRADDIF
+ ifr.ifr_ifindex = index;
+ xioctl(TT.sockfd, SIOCBRADDIF, &ifr);
+#else
+ args[1] = index;
+ strncpy(ifr.ifr_name, argv[0], IFNAMSIZ);
+ ifr.ifr_data = (char *)args;
+ xioctl(TT.sockfd, SIOCDEVPRIVATE, &ifr);
+#endif
+}
+
+void br_delif(char **argv)
+{
+ int index;
+ struct ifreq ifr;
+ unsigned long args[4] = {BRCTL_DEL_IF, 0, 0, 0};
+
+ if (!(index = if_nametoindex(argv[1]))) perror_exit("interface %s",argv[1]);
+#ifdef SIOCBRDELIF
+ ifr.ifr_ifindex = ifindex;
+ xioctl(TT.sockfd, SIOCBRDELIF, &ifr);
+#else
+ args[1] = index;
+ strncpy(ifr.ifr_name, argv[0], IFNAMSIZ);
+ ifr.ifr_data = (char *)args;
+ xioctl(TT.sockfd, SIOCDEVPRIVATE, &ifr);
+#endif
+}
+
+static void strtotimeval(struct timeval *tv, char *time)
+{
+ double secs;
+
+ if (sscanf(time, "%lf", &secs) != 1) error_exit("time format not proper");
+ tv->tv_sec = secs;
+ tv->tv_usec = 1000000 * (secs - tv->tv_sec);
+}
+
+static unsigned long tv_to_jify(struct timeval *tv)
+{
+ unsigned long long jify;
+
+ jify = 1000000ULL * tv->tv_sec + tv->tv_usec;
+ return (jify/10000);
+}
+
+void set_time(char *br, unsigned long cmd, unsigned long val)
+{
+ struct ifreq ifr;
+ unsigned long args[4] = {cmd, val, 0, 0};
+
+ strncpy(ifr.ifr_name, br, IFNAMSIZ);
+ ifr.ifr_data = (char *)args;
+ xioctl(TT.sockfd, SIOCDEVPRIVATE, &ifr);
+}
+
+void br_set_ageing_time(char **argv)
+{
+ struct timeval tv;
+
+ strtotimeval(&tv, argv[1]);
+ set_time(argv[0], BRCTL_SET_AGEING_TIME, tv_to_jify(&tv));
+}
+
+void br_set_fwd_delay(char **argv)
+{
+ struct timeval tv;
+
+ strtotimeval(&tv, argv[1]);
+ set_time(argv[0], BRCTL_SET_BRIDGE_FORWARD_DELAY, tv_to_jify(&tv));
+}
+
+void br_set_hello_time(char **argv)
+{
+ struct timeval tv;
+
+ strtotimeval(&tv, argv[1]);
+ set_time(argv[0], BRCTL_SET_BRIDGE_HELLO_TIME, tv_to_jify(&tv));
+}
+
+void br_set_max_age(char **argv)
+{
+ struct timeval tv;
+
+ strtotimeval(&tv, argv[1]);
+ set_time(argv[0], BRCTL_SET_BRIDGE_MAX_AGE, tv_to_jify(&tv));
+}
+
+void br_set_bridge_prio(char **argv)
+{
+ int prio;
+
+ if (sscanf(argv[1], "%i", &prio) != 1) error_exit("prio not proper");
+ set_time(argv[0], BRCTL_SET_BRIDGE_PRIORITY, prio);
+}
+
+void br_set_stp(char **argv)
+{
+ int i;
+ struct stp {
+ char *n;
+ int set;
+ } ss[] = {{"1", 1}, {"yes", 1},{"on", 1},
+ {"0", 0}, {"no", 0},{"off", 0}};
+
+ for (i = 0; i < ARRAY_LEN(ss); i++) {
+ if (!strcmp(ss[i].n, argv[1])) break;
+ }
+ if (i >= ARRAY_LEN(ss)) error_exit("invalid stp state");
+ set_time(argv[0], BRCTL_SET_BRIDGE_STP_STATE, ss[i].set);
+}
+
+void set_cost_prio(char *br, char *port, unsigned long cmd, unsigned long val)
+{
+ struct ifreq ifr;
+ int i, index, pindices[MAX_BRIDGES];
+ unsigned long args[4] = {cmd, 0, val, 0};
+
+ if (!(index = if_nametoindex(port))) error_exit("invalid port");
+
+ memset(pindices, 0, sizeof(pindices));
+ get_ports(br, pindices);
+ for (i = 0; i < MAX_BRIDGES; i++) {
+ if (index == pindices[i]) break;
+ }
+ if (i >= MAX_BRIDGES) error_exit("%s not in bridge", port);
+ args[1] = i;
+ strncpy(ifr.ifr_name, br, IFNAMSIZ);
+ ifr.ifr_data = (char *)args;
+ xioctl(TT.sockfd, SIOCDEVPRIVATE, &ifr);
+}
+
+void br_set_path_cost(char **argv)
+{
+ int cost;
+
+ cost = atolx_range(argv[2], 0, INT_MAX);
+ set_cost_prio(argv[0], argv[1], BRCTL_SET_PATH_COST, cost);
+}
+
+void br_set_port_prio(char **argv)
+{
+ int prio;
+
+ prio = atolx_range(argv[2], 0, INT_MAX);
+ set_cost_prio(argv[0], argv[1], BRCTL_SET_PORT_PRIORITY, prio);
+
+}
+
+void brctl_main(void)
+{
+ int i;
+ struct cmds {
+ char *cmd;
+ int nargs;
+ void (*f)(char **argv);
+ } cc[] = {{"show", 0, br_show},
+ {"addbr", 1, br_addbr}, {"delbr", 1, br_delbr},
+ {"addif", 2, br_addif}, {"delif", 2, br_delif},
+ {"setageing", 2, br_set_ageing_time},
+ {"setfd", 2, br_set_fwd_delay},
+ {"sethello", 2, br_set_hello_time},
+ {"setmaxage", 2, br_set_max_age},
+ {"setpathcost", 3, br_set_path_cost},
+ {"setportprio", 3, br_set_port_prio},
+ {"setbridgeprio", 2, br_set_bridge_prio},
+ {"stp", 2, br_set_stp},
+ };
+
+ TT.sockfd = xsocket(AF_INET, SOCK_STREAM, 0);
+ while (*toys.optargs) {
+ for (i = 0; i < ARRAY_LEN(cc); i++) {
+ struct cmds *t = cc + i;
+
+ if (strcmp(t->cmd, *toys.optargs)) continue;
+
+ toys.optargs++, toys.optc--;
+ if (toys.optc < t->nargs) {
+ toys.exithelp++;
+ error_exit("check args");
+ }
+ t->f(toys.optargs);
+ toys.optargs += t->nargs;
+ toys.optc -= t->nargs;
+ break;
+ }
+
+ if (i == ARRAY_LEN(cc)) {
+ toys.exithelp++;
+ error_exit("invalid option '%s'", *toys.optargs);
+ }
+ }
+ xclose(TT.sockfd);
+}
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