fc0a363208
- Change all strcpy() calls to strncpy() to avoid buffer overflow potential - Add ICMP host unreachable support - Logging to syslog if log_file = "syslog:facility" - Now requires libcli 1.5 - All configuration moves to a config structure - Ability to modify and write config on the fly through command-line interface - Config file support is removed, and now handled by the cli - Show hostname in cli prompt - Keep current state type for tunnels - Add uptime command do CLI, which also shows real-time bandwidth utilisation - Add goodbye command to cluster master, which forces droppping a slave - Cache IP address allocation, so that reconnecting users get the same address - Fix tunnel resend timeouts, so that dead tunnels will be cleaned up - Allocate tunnels and radius without using a linked list which had issues - Fix some off-by-one errors in tunnel and session and radius arrays - Save and reload ip address pool when dieing - Check version and size of reloaded data when restarting - Remove plugin_config support - Remove old support for TBF which didn't work anyway. HTB is required to do throttling now. - Add COPYING and Changes files
138 lines
2.6 KiB
C
138 lines
2.6 KiB
C
#include <stdio.h>
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#include <arpa/inet.h>
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#include <errno.h>
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#include <fcntl.h>
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#include <malloc.h>
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#include <netdb.h>
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#include <string.h>
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#include <sys/time.h>
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#include <sys/types.h>
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#include <sys/socket.h>
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#include <netinet/in.h>
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#include <signal.h>
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#include <stdarg.h>
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#include <stdlib.h>
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#include <unistd.h>
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#include <time.h>
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#include "control.h"
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struct { char *command; int pkt_type; int params; } commands[] = {
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{ "load_plugin", PKT_LOAD_PLUGIN, 1 },
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{ "unload_plugin", PKT_UNLOAD_PLUGIN, 1 },
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{ "garden", PKT_GARDEN, 1 },
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{ "ungarden", PKT_UNGARDEN, 1 },
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};
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char *dest_host = NULL;
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unsigned int dest_port = 1702;
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int udpfd;
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int main(int argc, char *argv[])
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{
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int len = 0;
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int dest_ip = 0;
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int pkt_type = 0;
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char *packet = NULL;
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int i;
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setbuf(stdout, NULL);
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if (argc < 3)
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{
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printf("Usage: %s <host> <command> [args...]\n", argv[0]);
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return 1;
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}
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dest_host = strdup(argv[1]);
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{
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// Init socket
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int on = 1;
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struct sockaddr_in addr;
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memset(&addr, 0, sizeof(addr));
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addr.sin_family = AF_INET;
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addr.sin_port = htons(1703);
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udpfd = socket(AF_INET, SOCK_DGRAM, 17);
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setsockopt(udpfd, SOL_SOCKET, SO_REUSEADDR, &on, sizeof(on));
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if (bind(udpfd, (void *) &addr, sizeof(addr)) < 0)
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{
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perror("bind");
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return(1);
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}
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}
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{
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struct hostent *h = gethostbyname(dest_host);
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if (h) dest_ip = ntohl(*(unsigned int *)h->h_addr);
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if (!dest_ip) dest_ip = ntohl(inet_addr(dest_host));
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if (!dest_ip)
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{
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printf("Can't resolve \"%s\"\n", dest_host);
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return 0;
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}
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}
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if (!(packet = calloc(1400, 1)))
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{
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perror("calloc");
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return(1);
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}
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srand(time(NULL));
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// Deal with command & params
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for (i = 0; i < (sizeof(commands) / sizeof(commands[0])); i++)
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{
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if (strcasecmp(commands[i].command, argv[2]) == 0)
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{
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int p;
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pkt_type = commands[i].pkt_type;
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len = new_packet(pkt_type, packet);
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if (argc < (commands[i].params + 3))
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{
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printf("Not enough parameters for %s\n", argv[2]);
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return 1;
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}
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for (p = 0; p < commands[i].params; p++)
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{
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strncpy((packet + len), argv[p + 3], 1400 - len - 1);
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len += strlen(argv[p + 3]) + 1;
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}
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break;
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}
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}
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if (!pkt_type)
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{
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printf("Unknown command\n");
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return 1;
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}
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send_packet(udpfd, dest_ip, dest_port, packet, len);
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{
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int n;
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fd_set r;
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struct timeval timeout;
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FD_ZERO(&r);
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FD_SET(udpfd, &r);
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timeout.tv_sec = 1;
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timeout.tv_usec = 0;
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n = select(udpfd + 1, &r, 0, 0, &timeout);
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if (n <= 0)
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{
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printf("Timeout waiting for packet\n");
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return 0;
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}
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}
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if ((len = read_packet(udpfd, packet)))
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{
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printf("Received ");
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dump_packet(packet, stdout);
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}
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return 0;
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}
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