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1.3 ! lum 1: /* $OpenBSD: pf.c,v 1.2 2010/01/19 05:59:20 mcbride Exp $ */
1.1 canacar 2: /*
3: * Copyright (c) 2001, 2007 Can Erkin Acar <canacar@openbsd.org>
4: *
5: * Permission to use, copy, modify, and distribute this software for any
6: * purpose with or without fee is hereby granted, provided that the above
7: * copyright notice and this permission notice appear in all copies.
8: *
9: * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
10: * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
11: * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
12: * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
13: * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
14: * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
15: * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
16: */
17:
18: #include <sys/types.h>
19: #include <sys/ioctl.h>
20: #include <sys/socket.h>
21: #include <sys/param.h>
22: #include <net/if.h>
23: #include <netinet/in.h>
24: #include <netinet/in_systm.h>
25: #include <netinet/ip.h>
26: #include <net/pfvar.h>
27:
28: #include <stdio.h>
29: #include <stdlib.h>
30: #include <string.h>
31: #include <ctype.h>
32: #include <errno.h>
33: #include <err.h>
34: #include <unistd.h>
1.2 mcbride 35: #include <syslog.h>
1.1 canacar 36: #include "pfctl_parser.h"
37: #include "systat.h"
38:
39: void print_pf(void);
40: int read_pf(void);
41: int select_pf(void);
1.3 ! lum 42: void print_fld_double(field_def *, double);
1.1 canacar 43:
44: const char *pf_reasons[PFRES_MAX+1] = PFRES_NAMES;
45: const char *pf_lcounters[LCNT_MAX+1] = LCNT_NAMES;
46: const char *pf_fcounters[FCNT_MAX+1] = FCNT_NAMES;
47: const char *pf_scounters[FCNT_MAX+1] = FCNT_NAMES;
48:
49: static struct pf_status status;
50: extern int pf_dev;
51: int num_pf = 0;
52:
53: field_def fields_pf[] = {
54: {"TYPE", 13, 16, 1, FLD_ALIGN_RIGHT, -1, 0, 0, 0},
55: {"NAME", 12, 24, 1, FLD_ALIGN_LEFT, -1, 0, 0, 0},
56: {"VALUE", 8, 10, 1, FLD_ALIGN_RIGHT, -1, 0, 0, 0},
57: {"RATE", 8, 10, 1, FLD_ALIGN_RIGHT, -1, 0, 0, 60},
58: {"NOTES", 10, 20, 1, FLD_ALIGN_LEFT, -1, 0, 0, 60},
59: };
60:
61: #define FIELD_ADDR(x) (&fields_pf[x])
62:
63: #define FLD_PF_TYPE FIELD_ADDR(0)
64: #define FLD_PF_NAME FIELD_ADDR(1)
65: #define FLD_PF_VALUE FIELD_ADDR(2)
66: #define FLD_PF_RATE FIELD_ADDR(3)
67: #define FLD_PF_DESC FIELD_ADDR(4)
68:
69: /* Define views */
70: field_def *view_pf_0[] = {
71: FLD_PF_TYPE, FLD_PF_NAME, FLD_PF_VALUE, FLD_PF_RATE, FLD_PF_DESC, NULL
72: };
73:
74:
75: /* Define view managers */
76: struct view_manager pf_mgr = {
77: "PF", select_pf, read_pf, NULL, print_header,
78: print_pf, keyboard_callback, NULL, NULL
79: };
80:
81: field_view views_pf[] = {
82: {view_pf_0, "pf", 'P', &pf_mgr},
83: {NULL, NULL, 0, NULL}
84: };
85:
86:
87:
88: int
89: select_pf(void)
90: {
91: return (0);
92: }
93:
94: int
95: read_pf(void)
96: {
97: if (pf_dev < 0) {
98: num_disp = 0;
99: return 0;
100: }
101:
102: if (ioctl(pf_dev, DIOCGETSTATUS, &status)) {
103: error("DIOCGETSTATUS: %s", strerror(errno));
104: return (-1);
105: }
106:
107: num_disp = 4;
108:
109: if (status.ifname[0] != 0)
110: num_disp += 13;
111:
112: num_disp += FCNT_MAX + 2;
113: num_disp += SCNT_MAX + 2;
114: num_disp += PFRES_MAX + 1;
115: num_disp += LCNT_MAX + 1;
116:
117: return (0);
118: }
119:
120: int
121: initpf(void)
122: {
123: field_view *v;
124:
125: for (v = views_pf; v->name != NULL; v++)
126: add_view(v);
127:
128: return(1);
129: }
130:
131: void
132: print_fld_double(field_def *fld, double val)
133: {
134: int len;
135:
136: if (fld == NULL)
137: return;
138:
139: len = fld->width;
140: if (len < 1)
141: return;
142:
143: tb_start();
144: if (tbprintf("%.2f", val) > len)
145: print_fld_str(fld, "*");
146: else
147: print_fld_tb(fld);
148: tb_end();
149: }
150:
151: #define ADD_LINE_A(t, n, v) \
152: do { \
153: if (cur >= dispstart && cur < end) { \
154: print_fld_str(FLD_PF_TYPE, (t)); \
155: print_fld_str(FLD_PF_NAME, (n)); \
156: print_fld_age(FLD_PF_VALUE, (v)); \
157: end_line(); \
158: } \
159: if (++cur >= end) \
160: return; \
161: } while (0)
162:
163: #define ADD_EMPTY_LINE \
164: do { \
165: if (cur >= dispstart && cur < end) \
166: end_line(); \
167: if (++cur >= end) \
168: return; \
169: } while (0)
170:
171: #define ADD_LINE_S(t, n, v) \
172: do { \
173: if (cur >= dispstart && cur < end) { \
174: print_fld_str(FLD_PF_TYPE, (t)); \
175: print_fld_str(FLD_PF_NAME, (n)); \
176: print_fld_str(FLD_PF_VALUE, (v)); \
177: end_line(); \
178: } \
179: if (++cur >= end) \
180: return; \
181: } while (0)
182:
183: #define ADD_LINE_V(t, n, v) \
184: do { \
185: if (cur >= dispstart && cur < end) { \
186: print_fld_str(FLD_PF_TYPE, (t)); \
187: print_fld_str(FLD_PF_NAME, (n)); \
188: print_fld_size(FLD_PF_VALUE, (v)); \
189: end_line(); \
190: } \
191: if (++cur >= end) \
192: return; \
193: } while (0)
194:
195: #define ADD_LINE_VD(t, n, v, d) \
196: do { \
197: if (cur >= dispstart && cur < end) { \
198: print_fld_str(FLD_PF_TYPE, (t)); \
199: print_fld_str(FLD_PF_NAME, (n)); \
200: print_fld_size(FLD_PF_VALUE, (v)); \
201: print_fld_str(FLD_PF_DESC, (d)); \
202: end_line(); \
203: } \
204: if (++cur >= end) \
205: return; \
206: } while (0)
207:
208: #define ADD_LINE_VR(t, n, v, r) \
209: do { \
210: if (cur >= dispstart && cur < end) { \
211: print_fld_str(FLD_PF_TYPE, (t)); \
212: print_fld_str(FLD_PF_NAME, (n)); \
213: print_fld_size(FLD_PF_VALUE, (v)); \
214: print_fld_double(FLD_PF_RATE, (r)); \
215: end_line(); \
216: } \
217: if (++cur >= end) \
218: return; \
219: } while (0)
220:
221:
222: void
223: print_pf(void)
224: {
225: char *debug;
226: time_t tm;
227: int i;
228: struct pf_status *s = &status;
229:
230: int cur = 0;
231: int end = dispstart + maxprint;
232: if (end > num_disp)
233: end = num_disp;
234:
235: tm = time(NULL) - s->since;
236:
237: ADD_LINE_S("pf", "Status", s->running ? "Enabled" : "Disabled");
238: ADD_LINE_A("pf", "Since", tm);
239:
240: switch (s->debug) {
1.2 mcbride 241: case LOG_EMERG:
242: debug = "emerg";
1.1 canacar 243: break;
1.2 mcbride 244: case LOG_ALERT:
245: debug = "alert";
1.1 canacar 246: break;
1.2 mcbride 247: case LOG_CRIT:
248: debug = "crit";
1.1 canacar 249: break;
1.2 mcbride 250: case LOG_ERR:
251: debug = "err";
252: break;
253: case LOG_WARNING:
254: debug = "warning";
255: break;
256: case LOG_NOTICE:
257: debug = "notice";
258: break;
259: case LOG_INFO:
260: debug = "info";
261: break;
262: case LOG_DEBUG:
263: debug = "debug";
1.1 canacar 264: break;
265: }
266: ADD_LINE_S("pf", "Debug", debug);
267:
268: tb_start();
269: tbprintf("0x%08x\n", ntohl(s->hostid));
270: tb_end();
271:
272: ADD_LINE_S("pf", "Hostid", tmp_buf);
273:
274: if (s->ifname[0] != 0) {
275: ADD_EMPTY_LINE;
276: ADD_LINE_VD(s->ifname, "Bytes In", s->bcounters[0][0], "IPv4");
277: ADD_LINE_VD(s->ifname, "Bytes In", s->bcounters[1][0], "IPv6");
278: ADD_LINE_VD(s->ifname, "Bytes Out", s->bcounters[0][1], "IPv4");
279: ADD_LINE_VD(s->ifname, "Bytes Out", s->bcounters[1][1], "IPv6");
280: ADD_LINE_VD(s->ifname, "Packets In", s->pcounters[0][0][PF_PASS], "IPv4, Passed");
281: ADD_LINE_VD(s->ifname, "Packets In", s->pcounters[1][0][PF_PASS], "IPv6, Passed");
282: ADD_LINE_VD(s->ifname, "Packets In", s->pcounters[0][0][PF_DROP], "IPv4, Blocked");
283: ADD_LINE_VD(s->ifname, "Packets In", s->pcounters[1][0][PF_DROP], "IPv6, Blocked");
284: ADD_LINE_VD(s->ifname, "Packets Out", s->pcounters[0][1][PF_PASS], "IPv4, Passed");
285: ADD_LINE_VD(s->ifname, "Packets Out", s->pcounters[1][1][PF_PASS], "IPv6, Passed");
286: ADD_LINE_VD(s->ifname, "Packets Out", s->pcounters[0][1][PF_DROP], "IPv4, Blocked");
287: ADD_LINE_VD(s->ifname, "Packets Out", s->pcounters[1][1][PF_DROP], "IPv6, Blocked");
288: }
289:
290:
291: ADD_EMPTY_LINE;
292: ADD_LINE_V("state", "Count", s->states);
293:
294: for (i = 0; i < FCNT_MAX; i++) {
295: if (tm > 0)
296: ADD_LINE_VR("state", pf_fcounters[i], s->fcounters[i],
297: (double)s->fcounters[i] / (double)tm);
298: else
299: ADD_LINE_V("state", pf_fcounters[i], s->fcounters[i]);
300: }
301:
302:
303: ADD_EMPTY_LINE;
304: ADD_LINE_V("src track", "Count", s->src_nodes);
305:
306: for (i = 0; i < SCNT_MAX; i++) {
307: if (tm > 0)
308: ADD_LINE_VR("src track", pf_scounters[i], s->scounters[i],
309: (double)s->scounters[i] / (double)tm);
310: else
311: ADD_LINE_V("src track", pf_scounters[i], s->scounters[i]);
312: }
313:
314: ADD_EMPTY_LINE;
315: for (i = 0; i < PFRES_MAX; i++) {
316: if (tm > 0)
317: ADD_LINE_VR("counter", pf_reasons[i], s->counters[i],
318: (double)s->counters[i] / (double)tm);
319: else
320: ADD_LINE_V("counter", pf_reasons[i], s->counters[i]);
321: }
322:
323: ADD_EMPTY_LINE;
324: for (i = 0; i < LCNT_MAX; i++) {
325: if (tm > 0)
326: ADD_LINE_VR("limit counter", pf_lcounters[i], s->lcounters[i],
327: (double)s->lcounters[i] / (double)tm);
328: else
329: ADD_LINE_V("limit counter", pf_lcounters[i], s->lcounters[i]);
330: }
331: }