diff options
Diffstat (limited to 'usr.sbin/ngctl/dot.c')
| -rw-r--r-- | usr.sbin/ngctl/dot.c | 200 |
1 files changed, 200 insertions, 0 deletions
diff --git a/usr.sbin/ngctl/dot.c b/usr.sbin/ngctl/dot.c new file mode 100644 index 0000000..bd4673f --- /dev/null +++ b/usr.sbin/ngctl/dot.c @@ -0,0 +1,200 @@ + +/* + * dot.c + * + * Copyright (c) 2004 Brian Fundakowski Feldman + * Copyright (c) 1996-1999 Whistle Communications, Inc. + * All rights reserved. + * + * Subject to the following obligations and disclaimer of warranty, use and + * redistribution of this software, in source or object code forms, with or + * without modifications are expressly permitted by Whistle Communications; + * provided, however, that: + * 1. Any and all reproductions of the source or object code must include the + * copyright notice above and the following disclaimer of warranties; and + * 2. No rights are granted, in any manner or form, to use Whistle + * Communications, Inc. trademarks, including the mark "WHISTLE + * COMMUNICATIONS" on advertising, endorsements, or otherwise except as + * such appears in the above copyright notice or in the software. + * + * THIS SOFTWARE IS BEING PROVIDED BY WHISTLE COMMUNICATIONS "AS IS", AND + * TO THE MAXIMUM EXTENT PERMITTED BY LAW, WHISTLE COMMUNICATIONS MAKES NO + * REPRESENTATIONS OR WARRANTIES, EXPRESS OR IMPLIED, REGARDING THIS SOFTWARE, + * INCLUDING WITHOUT LIMITATION, ANY AND ALL IMPLIED WARRANTIES OF + * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE, OR NON-INFRINGEMENT. + * WHISTLE COMMUNICATIONS DOES NOT WARRANT, GUARANTEE, OR MAKE ANY + * REPRESENTATIONS REGARDING THE USE OF, OR THE RESULTS OF THE USE OF THIS + * SOFTWARE IN TERMS OF ITS CORRECTNESS, ACCURACY, RELIABILITY OR OTHERWISE. + * IN NO EVENT SHALL WHISTLE COMMUNICATIONS BE LIABLE FOR ANY DAMAGES + * RESULTING FROM OR ARISING OUT OF ANY USE OF THIS SOFTWARE, INCLUDING + * WITHOUT LIMITATION, ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, + * PUNITIVE, OR CONSEQUENTIAL DAMAGES, PROCUREMENT OF SUBSTITUTE GOODS OR + * SERVICES, LOSS OF USE, DATA OR PROFITS, HOWEVER CAUSED AND UNDER ANY + * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT + * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF + * THIS SOFTWARE, EVEN IF WHISTLE COMMUNICATIONS IS ADVISED OF THE POSSIBILITY + * OF SUCH DAMAGE. + * + * $FreeBSD$ + */ + +#include <err.h> +#include <inttypes.h> +#include <netgraph.h> +#include <stdio.h> +#include <stdlib.h> +#include <unistd.h> + +#include "ngctl.h" + +#define UNNAMED "\\<unnamed\\>" + +static int DotCmd(int ac, char **av); + +const struct ngcmd dot_cmd = { + DotCmd, + "dot [outputfile]", + "Produce a GraphViz (.dot) of the entire netgraph.", + "If no outputfile is specified, stdout will be assumed.", + { "graphviz", "confdot" } +}; + +static int +DotCmd(int ac, char **av) +{ + struct ng_mesg *nlresp; + struct namelist *nlist; + FILE *f = stdout; + int ch; + u_int i; + + /* Get options */ + optind = 1; + while ((ch = getopt(ac, av, "")) != -1) { + switch (ch) { + case '?': + default: + return (CMDRTN_USAGE); + break; + } + } + ac -= optind; + av += optind; + + /* Get arguments */ + switch (ac) { + case 1: + f = fopen(av[0], "w"); + if (f == NULL) { + warn("Could not open %s for writing", av[0]); + return (CMDRTN_ERROR); + } + case 0: + break; + default: + if (f != stdout) + (void)fclose(f); + return (CMDRTN_USAGE); + } + + /* Get list of nodes */ + if (NgSendMsg(csock, ".", NGM_GENERIC_COOKIE, NGM_LISTNODES, NULL, + 0) < 0) { + warn("send listnodes msg"); + goto error; + } + if (NgAllocRecvMsg(csock, &nlresp, NULL) < 0) { + warn("recv listnodes msg"); + goto error; + } + + nlist = (struct namelist *)nlresp->data; + fprintf(f, "graph netgraph {\n"); + /* TODO: implement rank = same or subgraphs at some point */ + fprintf(f, "\tedge [ weight = 1.0 ];\n"); + fprintf(f, "\tnode [ shape = record, fontsize = 12 ] {\n"); + for (i = 0; i < nlist->numnames; i++) + fprintf(f, "\t\t\"%jx\" [ label = \"{%s:|{%s|[%jx]:}}\" ];\n", + (uintmax_t)nlist->nodeinfo[i].id, + nlist->nodeinfo[i].name[0] != '\0' ? + nlist->nodeinfo[i].name : UNNAMED, + nlist->nodeinfo[i].type, (uintmax_t)nlist->nodeinfo[i].id); + fprintf(f, "\t};\n"); + + fprintf(f, "\tsubgraph cluster_disconnected {\n"); + fprintf(f, "\t\tbgcolor = pink;\n"); + for (i = 0; i < nlist->numnames; i++) + if (nlist->nodeinfo[i].hooks == 0) + fprintf(f, "\t\t\"%jx\";\n", + (uintmax_t)nlist->nodeinfo[i].id); + fprintf(f, "\t};\n"); + + for (i = 0; i < nlist->numnames; i++) { + struct ng_mesg *hlresp; + struct hooklist *hlist; + struct nodeinfo *ninfo; + char path[NG_PATHSIZ]; + u_int j; + + (void)snprintf(path, sizeof(path), "[%jx]:", + (uintmax_t)nlist->nodeinfo[i].id); + + /* Get node info and hook list */ + if (NgSendMsg(csock, path, NGM_GENERIC_COOKIE, NGM_LISTHOOKS, + NULL, 0) < 0) { + free(nlresp); + warn("send listhooks msg"); + goto error; + } + if (NgAllocRecvMsg(csock, &hlresp, NULL) < 0) { + free(nlresp); + warn("recv listhooks msg"); + goto error; + } + + hlist = (struct hooklist *)hlresp->data; + ninfo = &hlist->nodeinfo; + if (ninfo->hooks == 0) { + free(hlresp); + continue; + } + + fprintf(f, "\tnode [ shape = octagon, fontsize = 10 ] {\n"); + for (j = 0; j < ninfo->hooks; j++) + fprintf(f, "\t\t\"%jx.%s\" [ label = \"%s\" ];\n", + (uintmax_t)nlist->nodeinfo[i].id, + hlist->link[j].ourhook, hlist->link[j].ourhook); + fprintf(f, "\t};\n"); + + fprintf(f, "\t{\n\t\tedge [ weight = 2.0, style = bold ];\n"); + for (j = 0; j < ninfo->hooks; j++) + fprintf(f, "\t\t\"%jx\" -- \"%jx.%s\";\n", + (uintmax_t)nlist->nodeinfo[i].id, + (uintmax_t)nlist->nodeinfo[i].id, + hlist->link[j].ourhook); + fprintf(f, "\t};\n"); + + for (j = 0; j < ninfo->hooks; j++) { + /* Only print the edges going in one direction. */ + if (hlist->link[j].nodeinfo.id > nlist->nodeinfo[i].id) + continue; + fprintf(f, "\t\"%jx.%s\" -- \"%jx.%s\";\n", + (uintmax_t)nlist->nodeinfo[i].id, + hlist->link[j].ourhook, + (uintmax_t)hlist->link[j].nodeinfo.id, + hlist->link[j].peerhook); + } + free(hlresp); + } + + fprintf(f, "};\n"); + + free(nlresp); + if (f != stdout) + (void)fclose(f); + return (CMDRTN_OK); +error: + if (f != stdout) + (void)fclose(f); + return (CMDRTN_ERROR); +} |
