190 lines
5.7 KiB
C
190 lines
5.7 KiB
C
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/*
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* dot.c
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*
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* Copyright (c) 2004 Brian Fundakowski Feldman
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* Copyright (c) 1996-1999 Whistle Communications, Inc.
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* All rights reserved.
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*
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* Subject to the following obligations and disclaimer of warranty, use and
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* redistribution of this software, in source or object code forms, with or
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* without modifications are expressly permitted by Whistle Communications;
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* provided, however, that:
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* 1. Any and all reproductions of the source or object code must include the
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* copyright notice above and the following disclaimer of warranties; and
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* 2. No rights are granted, in any manner or form, to use Whistle
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* Communications, Inc. trademarks, including the mark "WHISTLE
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* COMMUNICATIONS" on advertising, endorsements, or otherwise except as
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* such appears in the above copyright notice or in the software.
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*
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* THIS SOFTWARE IS BEING PROVIDED BY WHISTLE COMMUNICATIONS "AS IS", AND
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* TO THE MAXIMUM EXTENT PERMITTED BY LAW, WHISTLE COMMUNICATIONS MAKES NO
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* REPRESENTATIONS OR WARRANTIES, EXPRESS OR IMPLIED, REGARDING THIS SOFTWARE,
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* INCLUDING WITHOUT LIMITATION, ANY AND ALL IMPLIED WARRANTIES OF
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* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE, OR NON-INFRINGEMENT.
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* WHISTLE COMMUNICATIONS DOES NOT WARRANT, GUARANTEE, OR MAKE ANY
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* REPRESENTATIONS REGARDING THE USE OF, OR THE RESULTS OF THE USE OF THIS
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* SOFTWARE IN TERMS OF ITS CORRECTNESS, ACCURACY, RELIABILITY OR OTHERWISE.
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* IN NO EVENT SHALL WHISTLE COMMUNICATIONS BE LIABLE FOR ANY DAMAGES
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* RESULTING FROM OR ARISING OUT OF ANY USE OF THIS SOFTWARE, INCLUDING
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* WITHOUT LIMITATION, ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY,
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* PUNITIVE, OR CONSEQUENTIAL DAMAGES, PROCUREMENT OF SUBSTITUTE GOODS OR
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* SERVICES, LOSS OF USE, DATA OR PROFITS, HOWEVER CAUSED AND UNDER ANY
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
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* THIS SOFTWARE, EVEN IF WHISTLE COMMUNICATIONS IS ADVISED OF THE POSSIBILITY
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* OF SUCH DAMAGE.
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*
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* $FreeBSD$
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*/
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#include <inttypes.h>
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#include "ngctl.h"
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#define UNNAMED "\\<unnamed\\>"
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static int DotCmd(int ac, char **av);
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const struct ngcmd dot_cmd = {
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DotCmd,
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"dot [outputfile]",
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"Produce a GraphViz (.dot) of the entire netgraph.",
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"If no outputfile is specified, stdout will be assumed.",
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{ "graphviz", "confdot" }
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};
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static int
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DotCmd(int ac, char **av)
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{
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u_char nlrbuf[16 * 1024];
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struct ng_mesg *const nlresp = (struct ng_mesg *)nlrbuf;
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struct namelist *const nlist = (struct namelist *)nlresp->data;
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FILE *f = stdout;
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int ch;
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u_int i;
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/* Get options */
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optind = 1;
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while ((ch = getopt(ac, av, "")) != EOF) {
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switch (ch) {
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case '?':
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default:
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return (CMDRTN_USAGE);
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break;
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}
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}
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ac -= optind;
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av += optind;
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/* Get arguments */
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switch (ac) {
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case 1:
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f = fopen(av[0], "w");
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if (f == NULL) {
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warn("Could not open %s for writing", av[0]);
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return (CMDRTN_ERROR);
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}
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case 0:
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break;
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default:
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if (f != stdout)
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(void)fclose(f);
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return (CMDRTN_USAGE);
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}
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/* Get list of nodes */
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if (NgSendMsg(csock, ".", NGM_GENERIC_COOKIE, NGM_LISTNODES, NULL,
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0) < 0) {
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warn("send listnodes msg");
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goto error;
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}
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if (NgRecvMsg(csock, nlresp, sizeof(nlrbuf), NULL) < 0) {
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warn("recv listnodes msg");
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goto error;
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}
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fprintf(f, "graph netgraph {\n");
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/* TODO: implement rank = same or subgraphs at some point */
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fprintf(f, "\tedge [ weight = 1.0 ];\n");
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fprintf(f, "\tnode [ shape = record, fontsize = 12 ] {\n");
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for (i = 0; i < nlist->numnames; i++)
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fprintf(f, "\t\t\"%jx\" [ label = \"{%s:|{%s|[%jx]:}}\" ];\n",
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(uintmax_t)nlist->nodeinfo[i].id,
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nlist->nodeinfo[i].name[0] != '\0' ?
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nlist->nodeinfo[i].name : UNNAMED,
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nlist->nodeinfo[i].type, (uintmax_t)nlist->nodeinfo[i].id);
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fprintf(f, "\t};\n");
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fprintf(f, "\tsubgraph cluster_disconnected {\n");
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fprintf(f, "\t\tbgcolor = pink;\n");
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for (i = 0; i < nlist->numnames; i++)
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if (nlist->nodeinfo[i].hooks == 0)
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fprintf(f, "\t\t\"%jx\";\n",
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(uintmax_t)nlist->nodeinfo[i].id);
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fprintf(f, "\t};\n");
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for (i = 0; i < nlist->numnames; i++) {
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u_char hlrbuf[16 * 1024];
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struct ng_mesg *const hlresp = (struct ng_mesg *)hlrbuf;
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struct hooklist *const hlist = (struct hooklist *)hlresp->data;
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struct nodeinfo *const ninfo = &hlist->nodeinfo;
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char path[NG_PATHSIZ];
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u_int j;
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(void)snprintf(path, sizeof(path), "[%jx]:",
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(uintmax_t)nlist->nodeinfo[i].id);
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/* Get node info and hook list */
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if (NgSendMsg(csock, path, NGM_GENERIC_COOKIE, NGM_LISTHOOKS,
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NULL, 0) < 0) {
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warn("send listhooks msg");
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goto error;
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}
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if (NgRecvMsg(csock, hlresp, sizeof(hlrbuf), NULL) < 0) {
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warn("recv listhooks msg");
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goto error;
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}
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if (ninfo->hooks == 0)
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continue;
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fprintf(f, "\tnode [ shape = octagon, fontsize = 10 ] {\n");
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for (j = 0; j < ninfo->hooks; j++)
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fprintf(f, "\t\t\"%jx.%s\" [ label = \"%s\" ];\n",
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(uintmax_t)nlist->nodeinfo[i].id,
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hlist->link[j].ourhook, hlist->link[j].ourhook);
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fprintf(f, "\t};\n");
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fprintf(f, "\t{\n\t\tedge [ weight = 2.0, style = bold ];\n");
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for (j = 0; j < ninfo->hooks; j++)
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fprintf(f, "\t\t\"%jx\" -- \"%jx.%s\";\n",
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(uintmax_t)nlist->nodeinfo[i].id,
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(uintmax_t)nlist->nodeinfo[i].id,
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hlist->link[j].ourhook);
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fprintf(f, "\t};\n");
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for (j = 0; j < ninfo->hooks; j++) {
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/* Only print the edges going in one direction. */
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if (hlist->link[j].nodeinfo.id > nlist->nodeinfo[i].id)
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continue;
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fprintf(f, "\t\"%jx.%s\" -- \"%jx.%s\";\n",
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(uintmax_t)nlist->nodeinfo[i].id,
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hlist->link[j].ourhook,
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(uintmax_t)hlist->link[j].nodeinfo.id,
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hlist->link[j].peerhook);
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}
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}
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fprintf(f, "};\n");
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if (f != stdout)
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(void)fclose(f);
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return (CMDRTN_OK);
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error:
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if (f != stdout)
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(void)fclose(f);
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return (CMDRTN_ERROR);
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}
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