diff options
Diffstat (limited to 'src/plugins/examples/health_check.c')
-rw-r--r-- | src/plugins/examples/health_check.c | 109 |
1 files changed, 0 insertions, 109 deletions
diff --git a/src/plugins/examples/health_check.c b/src/plugins/examples/health_check.c deleted file mode 100644 index 5f0d85fec08..00000000000 --- a/src/plugins/examples/health_check.c +++ /dev/null @@ -1,109 +0,0 @@ -#include <stdio.h> -#include <stdlib.h> -#include <unistd.h> -#include <string.h> -#include <netinet/in.h> -#include <netinet/ip.h> -#include <netinet/ip_icmp.h> -#include <arpa/inet.h> -#include <net/if.h> -#include <stdbool.h> -#include <errno.h> - -static void -usage (void) { - fprintf(stderr, - "Usage: health_check" - " -d debug" - " -I interface" - "\n"); - exit(2); -} - -int -main (int argc, char **argv) -{ - int sd, ch; - uint8_t *opt, *pkt; - struct ifreq ifr; - char *interface = NULL; - bool debug = false; - - while ((ch = getopt(argc, argv, "h?" "I:" "d")) != EOF) { - switch(ch) { - case 'I': - interface = optarg; - break; - case 'd': - debug = true; - break; - default: - usage(); - break; - } - } - - argc -= optind; - argv += optind; - - if (!interface) - usage(); - - /* Request a socket descriptor sd. */ - if ((sd = socket (AF_INET6, SOCK_RAW, IPPROTO_IPIP)) < 0) { - perror ("Failed to get socket descriptor "); - exit (EXIT_FAILURE); - } - - memset(&ifr, 0, sizeof(ifr)); - snprintf(ifr.ifr_name, sizeof(ifr.ifr_name), "%s", interface); - - /* Bind socket to interface of this node. */ - if (setsockopt (sd, SOL_SOCKET, SO_BINDTODEVICE, (void *) &ifr, sizeof (ifr)) < 0) { - perror ("SO_BINDTODEVICE failed"); - exit (EXIT_FAILURE); - } - if (debug) printf("Binding to interface %s\n", interface); - - while (1) { - struct sockaddr_in6 src_addr; - socklen_t addrlen = sizeof(src_addr); - char source[INET6_ADDRSTRLEN+1]; - int len; - uint8_t inpack[IP_MAXPACKET]; - - if ((len = recvfrom(sd, inpack, sizeof(inpack), 0, (struct sockaddr *)&src_addr, &addrlen)) < 0) { - perror("recvfrom failed "); - } - if (inet_ntop(AF_INET6, &src_addr.sin6_addr, source, INET6_ADDRSTRLEN) == NULL) { - perror("inet_ntop() failed."); - exit(EXIT_FAILURE); - } - - /* Reply */ - struct iphdr *ip = (struct iphdr *)inpack; - uint32_t saddr; - struct icmphdr *icmp; - - saddr = ip->saddr; - ip->saddr = ip->daddr; - ip->daddr = saddr; - - switch (ip->protocol) { - case 1: - if (debug) printf ("ICMP Echo request from %s\n", source); - icmp = (struct icmphdr *)&ip[1]; - icmp->type = ICMP_ECHOREPLY; - break; - default: - fprintf(stderr, "Unsupported protocol %d", ip->protocol); - } - if (len = sendto(sd, inpack, len, 0, (struct sockaddr *)&src_addr, addrlen) < 0) { - perror("sendto failed "); - } - } - - close (sd); - - return (EXIT_SUCCESS); -} |