Annotation of embedaddon/libnet/src/libnet_internal.c, revision 1.1.1.1
1.1 misho 1: /*
2: * $Id: libnet_internal.c,v 1.14 2004/03/16 18:40:59 mike Exp $
3: *
4: * libnet
5: * libnet_internal.c - secret routines!
6: *
7: * Copyright (c) 1998 - 2004 Mike D. Schiffman <mike@infonexus.com>
8: * All rights reserved.
9: *
10: * Redistribution and use in source and binary forms, with or without
11: * modification, are permitted provided that the following conditions
12: * are met:
13: * 1. Redistributions of source code must retain the above copyright
14: * notice, this list of conditions and the following disclaimer.
15: * 2. Redistributions in binary form must reproduce the above copyright
16: * notice, this list of conditions and the following disclaimer in the
17: * documentation and/or other materials provided with the distribution.
18: *
19: * THIS SOFTWARE IS PROVIDED BY THE AUTHOR 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 AUTHOR 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: */
32:
33: #if (HAVE_CONFIG_H)
34: #include "../include/config.h"
35: #endif
36: #if (!(_WIN32) || (__CYGWIN__))
37: #include "../include/libnet.h"
38: #else
39: #include "../include/win32/libnet.h"
40: #endif
41:
42: void
43: libnet_diag_dump_hex(u_int8_t *packet, u_int32_t len, int swap, FILE *stream)
44: {
45: int i, s_cnt;
46: u_int16_t *p;
47:
48: p = (u_int16_t *)packet;
49: s_cnt = len / sizeof(u_int16_t);
50:
51: fprintf(stream, "\t");
52: for (i = 0; --s_cnt >= 0; i++)
53: {
54: if ((!(i % 8)))
55: {
56: fprintf(stream, "\n%02x\t", (i * 2));
57: }
58: fprintf(stream, "%04x ", swap ? ntohs(*(p++)) : *(p++));
59: }
60:
61: /*
62: * Mop up an odd byte.
63: */
64: if (len & 1)
65: {
66: if ((!(i % 8)))
67: {
68: fprintf(stream, "\n%02x\t", (i * 2));
69: }
70: fprintf(stream, "%02x ", *(u_int8_t *)p);
71: }
72: fprintf(stream, "\n");
73: }
74:
75:
76: void
77: libnet_diag_dump_context(libnet_t *l)
78: {
79: if (l == NULL)
80: {
81: return;
82: }
83:
84: fprintf(stderr, "fd:\t\t%d\n", l->fd);
85:
86: switch (l->injection_type)
87: {
88: case LIBNET_LINK:
89: fprintf(stderr, "injection type:\tLIBNET_LINK\n");
90: break;
91: case LIBNET_RAW4:
92: fprintf(stderr, "injection type:\tLIBNET_RAW4\n");
93: break;
94: case LIBNET_RAW6:
95: fprintf(stderr, "injection type:\tLIBNET_RAW6\n");
96: break;
97: case LIBNET_LINK_ADV:
98: fprintf(stderr, "injection type:\tLIBNET_LINK_ADV\n");
99: break;
100: case LIBNET_RAW4_ADV:
101: fprintf(stderr, "injection type:\tLIBNET_RAW4_ADV\n");
102: break;
103: case LIBNET_RAW6_ADV:
104: fprintf(stderr, "injection type:\tLIBNET_RAW6_ADV\n");
105: break;
106: default:
107: fprintf(stderr, "injection type:\tinvalid injection type %d\n",
108: l->injection_type);
109: break;
110: }
111:
112: fprintf(stderr, "pblock start:\t%p\n", l->protocol_blocks);
113: fprintf(stderr, "pblock end:\t%p\n", l->pblock_end);
114: fprintf(stderr, "link type:\t%d\n", l->link_type);
115: fprintf(stderr, "link offset:\t%d\n", l->link_offset);
116: fprintf(stderr, "aligner:\t%d\n", l->aligner);
117: fprintf(stderr, "device:\t\t%s\n", l->device);
118: fprintf(stderr, "packets sent:\t%lld\n", l->stats.packets_sent);
119: fprintf(stderr, "packet errors:\t%lld\n", l->stats.packet_errors);
120: fprintf(stderr, "bytes written:\t%lld\n", l->stats.bytes_written);
121: fprintf(stderr, "ptag state:\t%d\n", l->ptag_state);
122: fprintf(stderr, "context label:\t%s\n", l->label);
123: fprintf(stderr, "last errbuf:\t%s\n", l->err_buf);
124: fprintf(stderr, "total size:\t%d\n", l->total_size);
125: }
126:
127: void
128: libnet_diag_dump_pblock(libnet_t *l)
129: {
130: u_int32_t n;
131: libnet_pblock_t *p;
132:
133: for (p = l->protocol_blocks; p; p = p->next)
134: {
135: fprintf(stderr, "pblock type:\t%s\n",
136: libnet_diag_dump_pblock_type(p->type));
137: fprintf(stderr, "ptag number:\t%d\n", p->ptag);
138: fprintf(stderr, "IP offset:\t%d\n", p->ip_offset);
139: fprintf(stderr, "pblock address:\t%p\n", p);
140: fprintf(stderr, "next pblock\t%p ", p->next);
141: if (p->next)
142: {
143: fprintf(stderr, "(%s)",
144: libnet_diag_dump_pblock_type(p->next->type));
145: }
146: fprintf(stderr, "\n");
147: fprintf(stderr, "prev pblock\t%p ", p->prev);
148: if (p->prev)
149: {
150: fprintf(stderr, "(%s)",
151: libnet_diag_dump_pblock_type(p->prev->type));
152: }
153: fprintf(stderr, "\n");
154: fprintf(stderr, "buf:\t\t");
155: for (n = 0; n < p->b_len; n++)
156: {
157: fprintf(stderr, "%02x", p->buf[n]);
158: }
159: fprintf(stderr, "\nbuffer length:\t%d\n", p->b_len);
160: if ((p->flags) & LIBNET_PBLOCK_DO_CHECKSUM)
161: {
162: fprintf(stderr, "checksum flag:\tYes\n");
163: fprintf(stderr, "chksum length:\t%d\n", p->h_len);
164: }
165: else
166: {
167: fprintf(stderr, "checksum flag:\tNo\n");
168: }
169: fprintf(stderr, "bytes copied:\t%d\n\n", p->copied);
170: }
171: }
172:
173: char *
174: libnet_diag_dump_pblock_type(u_int8_t type)
175: {
176: static int8_t buf[50];
177: switch (type)
178: {
179: case LIBNET_PBLOCK_ARP_H:
180: return ("arp header");
181: case LIBNET_PBLOCK_DHCPV4_H:
182: return ("dhcpv4 header");
183: case LIBNET_PBLOCK_DNSV4_H:
184: return ("dnsv4 header");
185: case LIBNET_PBLOCK_ETH_H:
186: return ("ethernet header");
187: case LIBNET_PBLOCK_ICMPV4_H:
188: return ("icmpv4 header");
189: case LIBNET_PBLOCK_ICMPV4_ECHO_H:
190: return ("icmpv4 echo header");
191: case LIBNET_PBLOCK_ICMPV4_MASK_H:
192: return ("icmpv4 mask header");
193: case LIBNET_PBLOCK_ICMPV4_UNREACH_H:
194: return ("icmpv4 unreachable header");
195: case LIBNET_PBLOCK_ICMPV4_TIMXCEED_H:
196: return ("icmpv4 time exceeded header");
197: case LIBNET_PBLOCK_ICMPV4_REDIRECT_H:
198: return ("icmpv4 redirect header");
199: case LIBNET_PBLOCK_ICMPV4_TS_H:
200: return ("icmpv4 timestamp header");
201: case LIBNET_PBLOCK_IGMP_H:
202: return ("igmp header");
203: case LIBNET_PBLOCK_IPV4_H:
204: return ("ipv4 header");
205: case LIBNET_PBLOCK_IPO_H:
206: return ("ip options header");
207: case LIBNET_PBLOCK_IPDATA:
208: return ("ip data");
209: case LIBNET_PBLOCK_OSPF_H:
210: return ("ospf header");
211: case LIBNET_PBLOCK_OSPF_HELLO_H:
212: return ("ospf hello header");
213: case LIBNET_PBLOCK_OSPF_DBD_H:
214: return ("ospf dbd header");
215: case LIBNET_PBLOCK_OSPF_LSR_H:
216: return ("ospf lsr header");
217: case LIBNET_PBLOCK_OSPF_LSU_H:
218: return ("ospf lsu header");
219: case LIBNET_PBLOCK_OSPF_LSA_H:
220: return ("ospf lsa header");
221: case LIBNET_PBLOCK_OSPF_AUTH_H:
222: return ("ospf authentication header");
223: case LIBNET_PBLOCK_OSPF_CKSUM:
224: return ("ospf checksum");
225: case LIBNET_PBLOCK_LS_RTR_H:
226: return ("ospf ls rtr header");
227: case LIBNET_PBLOCK_LS_NET_H:
228: return ("ospf ls net header");
229: case LIBNET_PBLOCK_LS_SUM_H:
230: return ("ospf ls sum header");
231: case LIBNET_PBLOCK_LS_AS_EXT_H:
232: return ("ospf ls as extension header");
233: case LIBNET_PBLOCK_NTP_H:
234: return ("ntp header");
235: case LIBNET_PBLOCK_RIP_H:
236: return ("rip header");
237: case LIBNET_PBLOCK_TCP_H:
238: return ("tcp header");
239: case LIBNET_PBLOCK_TCPO_H:
240: return ("tcp options header");
241: case LIBNET_PBLOCK_TCPDATA:
242: return ("tcp data");
243: case LIBNET_PBLOCK_UDP_H:
244: return ("udp header");
245: case LIBNET_PBLOCK_VRRP_H:
246: return ("vrrp header");
247: case LIBNET_PBLOCK_DATA_H:
248: return ("data");
249: case LIBNET_PBLOCK_CDP_H:
250: return ("cdp header");
251: case LIBNET_PBLOCK_IPSEC_ESP_HDR_H:
252: return ("ipsec esp header");
253: case LIBNET_PBLOCK_IPSEC_ESP_FTR_H:
254: return ("ipsec esp footer");
255: case LIBNET_PBLOCK_IPSEC_AH_H:
256: return ("ipsec authentication header");
257: case LIBNET_PBLOCK_802_1Q_H:
258: return ("802.1q header");
259: case LIBNET_PBLOCK_802_2_H:
260: return ("802.2 header");
261: case LIBNET_PBLOCK_802_2SNAP_H:
262: return ("802.2SNAP header");
263: case LIBNET_PBLOCK_802_3_H:
264: return ("802.3 header");
265: case LIBNET_PBLOCK_STP_CONF_H:
266: return ("stp configuration header");
267: case LIBNET_PBLOCK_STP_TCN_H:
268: return ("stp tcn header");
269: case LIBNET_PBLOCK_ISL_H:
270: return ("isl header");
271: case LIBNET_PBLOCK_IPV6_H:
272: return ("ipv6 header");
273: case LIBNET_PBLOCK_802_1X_H:
274: return ("802.1x header");
275: case LIBNET_PBLOCK_RPC_CALL_H:
276: return ("rpc call header");
277: case LIBNET_PBLOCK_MPLS_H:
278: return ("mlps header");
279: case LIBNET_PBLOCK_FDDI_H:
280: return ("fddi header");
281: case LIBNET_PBLOCK_TOKEN_RING_H:
282: return ("token ring header");
283: case LIBNET_PBLOCK_BGP4_HEADER_H:
284: return ("bgp header");
285: case LIBNET_PBLOCK_BGP4_OPEN_H:
286: return ("bgp open header");
287: case LIBNET_PBLOCK_BGP4_UPDATE_H:
288: return ("bgp update header");
289: case LIBNET_PBLOCK_BGP4_NOTIFICATION_H:
290: return ("bgp notification header");
291: case LIBNET_PBLOCK_GRE_H:
292: return ("gre header");
293: case LIBNET_PBLOCK_GRE_SRE_H:
294: return ("gre sre header");
295: case LIBNET_PBLOCK_IPV6_FRAG_H:
296: return ("ipv6 fragmentation header");
297: case LIBNET_PBLOCK_IPV6_ROUTING_H:
298: return ("ipv6 routing header");
299: case LIBNET_PBLOCK_IPV6_DESTOPTS_H:
300: return ("ipv6 destination options header");
301: case LIBNET_PBLOCK_IPV6_HBHOPTS_H:
302: return ("ipv6 hop by hop options header");
303: default:
304: snprintf(buf, sizeof(buf),
305: "%s(): unknown pblock type: %d", __func__, type);
306: return (buf);
307: }
308: return ("unreachable code");
309: }
310: /* EOF */
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