FreeBSD/Linux Kernel Cross Reference
sys/netns/spp_debug.c
1 /* $NetBSD: spp_debug.c,v 1.15 2004/04/21 02:30:56 matt Exp $ */
2
3 /*
4 * Copyright (c) 1984, 1985, 1986, 1987, 1993
5 * The Regents of the University of California. All rights reserved.
6 *
7 * Redistribution and use in source and binary forms, with or without
8 * modification, are permitted provided that the following conditions
9 * are met:
10 * 1. Redistributions of source code must retain the above copyright
11 * notice, this list of conditions and the following disclaimer.
12 * 2. Redistributions in binary form must reproduce the above copyright
13 * notice, this list of conditions and the following disclaimer in the
14 * documentation and/or other materials provided with the distribution.
15 * 3. Neither the name of the University nor the names of its contributors
16 * may be used to endorse or promote products derived from this software
17 * without specific prior written permission.
18 *
19 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
20 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
21 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
22 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
23 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
24 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
25 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
26 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
27 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
28 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
29 * SUCH DAMAGE.
30 *
31 * @(#)spp_debug.c 8.1 (Berkeley) 6/10/93
32 */
33
34 #include <sys/cdefs.h>
35 __KERNEL_RCSID(0, "$NetBSD: spp_debug.c,v 1.15 2004/04/21 02:30:56 matt Exp $");
36
37 #include "opt_inet.h"
38
39 #include <sys/param.h>
40 #include <sys/systm.h>
41 #include <sys/mbuf.h>
42 #include <sys/socket.h>
43 #include <sys/socketvar.h>
44 #include <sys/protosw.h>
45 #include <sys/errno.h>
46
47 #include <net/route.h>
48 #include <net/if.h>
49 #include <netinet/tcp_fsm.h>
50
51 #include <netns/ns.h>
52 #include <netns/ns_pcb.h>
53 #include <netns/idp.h>
54 #include <netns/idp_var.h>
55 #include <netns/sp.h>
56 #include <netns/spidp.h>
57 #define SPPTIMERS
58 #include <netns/spp_timer.h>
59 #include <netns/spp_var.h>
60 #define SANAMES
61 #include <netns/spp_debug.h>
62
63 extern const char * const sanames[];
64 extern const char * const sppnames[];
65
66 int sppconsdebug = 0;
67
68 struct spp_debug spp_debug[SPP_NDEBUG];
69 int spp_debx;
70
71 /*
72 * spp debug routines
73 */
74 void
75 spp_trace(int act, u_int ostate, struct sppcb *sp, struct spidp *si, int req)
76 {
77 #ifdef INET
78 #ifdef SPPDEBUG
79 u_short seq, ack, len, alo;
80 unsigned long iptime();
81 int flags;
82 struct spp_debug *sd = &spp_debug[spp_debx++];
83
84 if (spp_debx == SPP_NDEBUG)
85 spp_debx = 0;
86 sd->sd_time = iptime();
87 sd->sd_act = (short) act;
88 sd->sd_ostate = ostate;
89 sd->sd_cb = (caddr_t)sp;
90 if (sp)
91 sd->sd_sp = *sp;
92 else
93 bzero((caddr_t)&sd->sd_sp, sizeof (*sp));
94 if (si)
95 sd->sd_si = *si;
96 else
97 bzero((caddr_t)&sd->sd_si, sizeof (*si));
98 sd->sd_req = req;
99 if (sppconsdebug == 0)
100 return;
101 if (ostate >= TCP_NSTATES) ostate = 0;
102 if (act >= SA_DROP) act = SA_DROP;
103 if (sp)
104 printf("%x %s:", sp, tcpstates[ostate]);
105 else
106 printf("???????? ");
107 printf("%s ", sanames[act]);
108 switch (act) {
109
110 case SA_RESPOND:
111 case SA_INPUT:
112 case SA_OUTPUT:
113 case SA_DROP:
114 if (si == 0)
115 break;
116 seq = si->si_seq;
117 ack = si->si_ack;
118 alo = si->si_alo;
119 len = si->si_len;
120 if (act == SA_OUTPUT) {
121 seq = ntohs(seq);
122 ack = ntohs(ack);
123 alo = ntohs(alo);
124 len = ntohs(len);
125 }
126 #ifndef lint
127 #define p1(f) { printf("%s = %x, ", "f", f); }
128 p1(seq); p1(ack); p1(alo); p1(len);
129 #endif
130 flags = si->si_cc;
131 if (flags) {
132 char *cp = "<";
133 #ifndef lint
134 #define pf(f) { if (flags&SP_/**/f) { printf("%s%s", cp, "f"); cp = ","; } }
135 pf(SP); pf(SA); pf(OB); pf(EM);
136 #else
137 cp = cp;
138 #endif
139 printf(">");
140 }
141 #ifndef lint
142 #define p2(f) { printf("%s = %x, ", "f", si->si_/**/f); }
143 p2(sid);p2(did);p2(dt);p2(pt);
144 #endif
145 ns_printhost(&si->si_sna);
146 ns_printhost(&si->si_dna);
147
148 if (act==SA_RESPOND) {
149 printf("idp_len = %x, ",
150 ((struct idp *)si)->idp_len);
151 }
152 break;
153
154 case SA_USER:
155 printf("%s", prurequests[req&0xff]);
156 if ((req & 0xff) == PRU_SLOWTIMO)
157 printf("<%s>", spptimers[req>>8]);
158 break;
159 }
160 if (sp)
161 printf(" -> %s", tcpstates[sp->s_state]);
162 /* print out internal state of sp !?! */
163 printf("\n");
164 if (sp == 0)
165 return;
166 #ifndef lint
167 #define p3(f) { printf("%s = %x, ", "f", sp->s_/**/f); }
168 printf("\t"); p3(rack);p3(ralo);p3(smax);p3(flags); printf("\n");
169 #endif
170 #endif
171 #endif
172 }
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