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/* $OpenBSD: slaacctl.c,v 1.13 2017/08/28 15:35:48 florian Exp $ */ |
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/* |
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* Copyright (c) 2005 Claudio Jeker <claudio@openbsd.org> |
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* Copyright (c) 2004, 2005 Esben Norby <norby@openbsd.org> |
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* Copyright (c) 2003 Henning Brauer <henning@openbsd.org> |
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* |
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* Permission to use, copy, modify, and distribute this software for any |
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* purpose with or without fee is hereby granted, provided that the above |
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* copyright notice and this permission notice appear in all copies. |
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* |
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* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES |
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* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF |
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* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR |
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* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES |
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* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN |
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* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF |
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* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. |
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*/ |
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#include <sys/types.h> |
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#include <sys/queue.h> |
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#include <sys/socket.h> |
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#include <sys/un.h> |
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#include <arpa/inet.h> |
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#include <net/if.h> |
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#include <net/if_media.h> |
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#include <net/if_types.h> |
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#include <netinet/in.h> |
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#include <netinet/if_ether.h> |
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#include <netinet6/nd6.h> |
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#include <err.h> |
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#include <errno.h> |
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#include <event.h> |
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#include <imsg.h> |
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#include <netdb.h> |
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#include <stdio.h> |
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#include <stdlib.h> |
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#include <string.h> |
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#include <unistd.h> |
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#include "slaacd.h" |
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#include "frontend.h" |
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#include "parser.h" |
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__dead void usage(void); |
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int show_interface_msg(struct imsg *); |
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struct imsgbuf *ibuf; |
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__dead void |
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usage(void) |
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{ |
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extern char *__progname; |
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fprintf(stderr, "usage: %s [-s socket] command [argument ...]\n", |
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__progname); |
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exit(1); |
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} |
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int |
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main(int argc, char *argv[]) |
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{ |
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struct sockaddr_un sun; |
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struct parse_result *res; |
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struct imsg imsg; |
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int ctl_sock; |
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int done = 0; |
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int n, verbose = 0; |
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int ch; |
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char *sockname; |
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sockname = SLAACD_SOCKET; |
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✓✓ |
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while ((ch = getopt(argc, argv, "s:")) != -1) { |
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✓✗ |
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switch (ch) { |
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case 's': |
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sockname = optarg; |
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break; |
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default: |
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usage(); |
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} |
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} |
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argc -= optind; |
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argv += optind; |
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/* Parse command line. */ |
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✗✓ |
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if ((res = parse(argc, argv)) == NULL) |
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exit(1); |
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/* Connect to control socket. */ |
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✗✓ |
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if ((ctl_sock = socket(AF_UNIX, SOCK_STREAM, 0)) == -1) |
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err(1, "socket"); |
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memset(&sun, 0, sizeof(sun)); |
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sun.sun_family = AF_UNIX; |
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strlcpy(sun.sun_path, sockname, sizeof(sun.sun_path)); |
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✗✓ |
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if (connect(ctl_sock, (struct sockaddr *)&sun, sizeof(sun)) == -1) |
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err(1, "connect: %s", sockname); |
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✗✓ |
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if (pledge("stdio flock rpath cpath wpath", NULL) == -1) |
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err(1, "pledge"); |
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✗✓ |
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if ((ibuf = malloc(sizeof(struct imsgbuf))) == NULL) |
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err(1, NULL); |
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imsg_init(ibuf, ctl_sock); |
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done = 0; |
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/* Process user request. */ |
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✗✗✗✓ ✗ |
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switch (res->action) { |
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case LOG_VERBOSE: |
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verbose = 1; |
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/* FALLTHROUGH */ |
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case LOG_BRIEF: |
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imsg_compose(ibuf, IMSG_CTL_LOG_VERBOSE, 0, 0, -1, |
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&verbose, sizeof(verbose)); |
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printf("logging request sent.\n"); |
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done = 1; |
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break; |
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case SHOW_INTERFACE: |
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imsg_compose(ibuf, IMSG_CTL_SHOW_INTERFACE_INFO, 0, 0, -1, |
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&res->if_index, sizeof(res->if_index)); |
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break; |
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case SEND_SOLICITATION: |
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imsg_compose(ibuf, IMSG_CTL_SEND_SOLICITATION, 0, 0, -1, |
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&res->if_index, sizeof(res->if_index)); |
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done = 1; |
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break; |
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default: |
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usage(); |
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} |
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✓✓ |
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while (ibuf->w.queued) |
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✓✗✗✗
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if (msgbuf_write(&ibuf->w) <= 0 && errno != EAGAIN) |
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err(1, "write error"); |
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✗✓ |
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while (!done) { |
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if ((n = imsg_read(ibuf)) == -1 && errno != EAGAIN) |
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errx(1, "imsg_read error"); |
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if (n == 0) |
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errx(1, "pipe closed"); |
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while (!done) { |
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if ((n = imsg_get(ibuf, &imsg)) == -1) |
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errx(1, "imsg_get error"); |
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if (n == 0) |
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break; |
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switch (res->action) { |
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case SHOW_INTERFACE: |
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done = show_interface_msg(&imsg); |
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break; |
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default: |
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break; |
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} |
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imsg_free(&imsg); |
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} |
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} |
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close(ctl_sock); |
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free(ibuf); |
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return (0); |
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} |
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int |
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show_interface_msg(struct imsg *imsg) |
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{ |
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static int if_count = 0; |
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struct ctl_engine_info *cei; |
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struct ctl_engine_info_ra *cei_ra; |
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struct ctl_engine_info_ra_prefix *cei_ra_prefix; |
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struct ctl_engine_info_ra_rdns *cei_ra_rdns; |
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struct ctl_engine_info_ra_dnssl *cei_ra_dnssl; |
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struct ctl_engine_info_address_proposal *cei_addr_proposal; |
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struct ctl_engine_info_dfr_proposal *cei_dfr_proposal; |
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struct tm *t; |
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struct timespec now, diff; |
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char buf[IF_NAMESIZE], *bufp; |
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char hbuf[NI_MAXHOST], whenbuf[255]; |
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char ntopbuf[INET6_ADDRSTRLEN]; |
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switch (imsg->hdr.type) { |
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case IMSG_CTL_SHOW_INTERFACE_INFO: |
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cei = imsg->data; |
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if (if_count++ > 0) |
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printf("\n"); |
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bufp = if_indextoname(cei->if_index, buf); |
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printf("%s:\n", bufp != NULL ? bufp : "unknown"); |
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printf("\t index: %3u ", cei->if_index); |
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printf("running: %3s ", cei->running ? "yes" : "no"); |
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printf("privacy: %3s\n", cei->autoconfprivacy ? "yes" : "no"); |
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printf("\tlladdr: %s\n", ether_ntoa(&cei->hw_address)); |
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if (getnameinfo((struct sockaddr *)&cei->ll_address, |
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cei->ll_address.sin6_len, hbuf, sizeof(hbuf), NULL, 0, |
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NI_NUMERICHOST | NI_NUMERICSERV)) |
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err(1, "cannot get link local address"); |
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printf("\t inet6: %s\n", hbuf); |
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break; |
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case IMSG_CTL_SHOW_INTERFACE_INFO_RA: |
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cei_ra = imsg->data; |
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if (getnameinfo((struct sockaddr *)&cei_ra->from, |
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cei_ra->from.sin6_len, hbuf, sizeof(hbuf), NULL, 0, |
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NI_NUMERICHOST | NI_NUMERICSERV)) |
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err(1, "cannot get router IP"); |
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if (clock_gettime(CLOCK_MONOTONIC, &now)) |
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err(1, "clock_gettime"); |
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timespecsub(&now, &cei_ra->uptime, &diff); |
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t = localtime(&cei_ra->when.tv_sec); |
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strftime(whenbuf, sizeof(whenbuf), "%F %T", t); |
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printf("\tRouter Advertisement from %s\n", hbuf); |
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printf("\t\treceived: %s; %llds ago\n", whenbuf, diff.tv_sec); |
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printf("\t\tCur Hop Limit: %3u, M: %d, O: %d, Router Lifetime:" |
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" %5us\n", cei_ra->curhoplimit, cei_ra->managed ? 1: 0, |
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cei_ra->other ? 1 : 0, cei_ra->router_lifetime); |
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printf("\t\tDefault Router Preference: %s\n", cei_ra->rpref); |
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printf("\t\tReachable Time: %9ums, Retrans Timer: %9ums\n", |
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cei_ra->reachable_time, cei_ra->retrans_time); |
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break; |
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case IMSG_CTL_SHOW_INTERFACE_INFO_RA_PREFIX: |
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cei_ra_prefix = imsg->data; |
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printf("\t\tprefix: %s/%u\n", inet_ntop(AF_INET6, |
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&cei_ra_prefix->prefix, ntopbuf, INET6_ADDRSTRLEN), |
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cei_ra_prefix->prefix_len); |
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printf("\t\t\tOn-link: %d, Autonomous address-configuration: %d" |
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"\n", cei_ra_prefix->onlink ? 1 : 0, |
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cei_ra_prefix->autonomous ? 1 : 0); |
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if (cei_ra_prefix->vltime == ND6_INFINITE_LIFETIME) |
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printf("\t\t\tvltime: %10s, ", "infinity"); |
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else |
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printf("\t\t\tvltime: %10u, ", cei_ra_prefix->vltime); |
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if (cei_ra_prefix->pltime == ND6_INFINITE_LIFETIME) |
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printf("pltime: %10s\n", "infinity"); |
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else |
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printf("pltime: %10u\n", cei_ra_prefix->pltime); |
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break; |
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case IMSG_CTL_SHOW_INTERFACE_INFO_RA_RDNS: |
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cei_ra_rdns = imsg->data; |
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printf("\t\trdns: %s, lifetime: %u\n", inet_ntop(AF_INET6, |
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&cei_ra_rdns->rdns, ntopbuf, INET6_ADDRSTRLEN), |
250 |
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cei_ra_rdns->lifetime); |
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break; |
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case IMSG_CTL_SHOW_INTERFACE_INFO_RA_DNSSL: |
253 |
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cei_ra_dnssl = imsg->data; |
254 |
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printf("\t\tsearch: %s, lifetime: %u\n", cei_ra_dnssl->dnssl, |
255 |
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cei_ra_dnssl->lifetime); |
256 |
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break; |
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case IMSG_CTL_SHOW_INTERFACE_INFO_ADDR_PROPOSALS: |
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printf("\tAddress proposals\n"); |
259 |
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break; |
260 |
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case IMSG_CTL_SHOW_INTERFACE_INFO_ADDR_PROPOSAL: |
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cei_addr_proposal = imsg->data; |
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263 |
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if (getnameinfo((struct sockaddr *)&cei_addr_proposal->addr, |
264 |
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cei_addr_proposal->addr.sin6_len, hbuf, sizeof(hbuf), |
265 |
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NULL, 0, NI_NUMERICHOST | NI_NUMERICSERV)) |
266 |
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err(1, "cannot get proposal IP"); |
267 |
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268 |
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printf("\t\tid: %4lld, state: %15s, privacy: %s\n", |
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cei_addr_proposal->id, cei_addr_proposal->state, |
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cei_addr_proposal->privacy ? "y" : "n"); |
271 |
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272 |
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if (clock_gettime(CLOCK_MONOTONIC, &now)) |
273 |
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err(1, "clock_gettime"); |
274 |
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275 |
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timespecsub(&now, &cei_addr_proposal->uptime, &diff); |
276 |
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277 |
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if (cei_addr_proposal->vltime == ND6_INFINITE_LIFETIME) |
278 |
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printf("\t\tvltime: %10s, ", "infinity"); |
279 |
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else |
280 |
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printf("\t\tvltime: %10u, ", cei_addr_proposal->vltime); |
281 |
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if (cei_addr_proposal->pltime == ND6_INFINITE_LIFETIME) |
282 |
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printf("pltime: %10s", "infinity"); |
283 |
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else |
284 |
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printf("pltime: %10u", cei_addr_proposal->pltime); |
285 |
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if (cei_addr_proposal->next_timeout != 0) |
286 |
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printf(", timeout: %10llds\n", |
287 |
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cei_addr_proposal->next_timeout - diff.tv_sec); |
288 |
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else |
289 |
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printf("\n"); |
290 |
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291 |
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t = localtime(&cei_addr_proposal->when.tv_sec); |
292 |
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strftime(whenbuf, sizeof(whenbuf), "%F %T", t); |
293 |
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printf("\t\tupdated: %s; %llds ago\n", whenbuf, diff.tv_sec); |
294 |
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printf("\t\t%s, %s/%u\n", hbuf, inet_ntop(AF_INET6, |
295 |
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&cei_addr_proposal->prefix, ntopbuf, INET6_ADDRSTRLEN), |
296 |
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cei_addr_proposal->prefix_len); |
297 |
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break; |
298 |
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case IMSG_CTL_SHOW_INTERFACE_INFO_DFR_PROPOSALS: |
299 |
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printf("\tDefault router proposals\n"); |
300 |
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break; |
301 |
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case IMSG_CTL_SHOW_INTERFACE_INFO_DFR_PROPOSAL: |
302 |
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cei_dfr_proposal = imsg->data; |
303 |
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|
304 |
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if (getnameinfo((struct sockaddr *)&cei_dfr_proposal->addr, |
305 |
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cei_dfr_proposal->addr.sin6_len, hbuf, sizeof(hbuf), |
306 |
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NULL, 0, NI_NUMERICHOST | NI_NUMERICSERV)) |
307 |
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err(1, "cannot get router IP"); |
308 |
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|
309 |
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printf("\t\tid: %4lld, state: %15s\n", |
310 |
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cei_dfr_proposal->id, cei_dfr_proposal->state); |
311 |
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printf("\t\trouter: %s\n", hbuf); |
312 |
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printf("\t\trouter lifetime: %10u\n", |
313 |
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cei_dfr_proposal->router_lifetime); |
314 |
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printf("\t\tPreference: %s\n", cei_dfr_proposal->rpref); |
315 |
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if (clock_gettime(CLOCK_MONOTONIC, &now)) |
316 |
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err(1, "clock_gettime"); |
317 |
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|
318 |
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timespecsub(&now, &cei_dfr_proposal->uptime, &diff); |
319 |
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|
320 |
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t = localtime(&cei_dfr_proposal->when.tv_sec); |
321 |
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strftime(whenbuf, sizeof(whenbuf), "%F %T", t); |
322 |
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printf("\t\tupdated: %s; %llds ago", whenbuf, diff.tv_sec); |
323 |
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if (cei_dfr_proposal->next_timeout != 0) |
324 |
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printf(", timeout: %10llds\n", |
325 |
|
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cei_dfr_proposal->next_timeout - diff.tv_sec); |
326 |
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else |
327 |
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printf("\n"); |
328 |
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329 |
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break; |
330 |
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case IMSG_CTL_END: |
331 |
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printf("\n"); |
332 |
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return (1); |
333 |
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default: |
334 |
|
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break; |
335 |
|
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} |
336 |
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|
337 |
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return (0); |
338 |
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} |