1: /*
2: * $Id: libnet_internal.c,v 1.1.1.3 2023/09/27 11:11:38 misho 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: #include "common.h"
34:
35: void
36: libnet_diag_dump_hex(const uint8_t *packet, uint32_t len, int swap, FILE *stream)
37: {
38: int i, s_cnt;
39: uint16_t *p;
40:
41: p = (uint16_t *)packet;
42: s_cnt = len / sizeof(uint16_t);
43:
44: fprintf(stream, "\t");
45: for (i = 0; --s_cnt >= 0; i++)
46: {
47: if ((!(i % 8)))
48: {
49: fprintf(stream, "\n%02x\t", (i * 2));
50: }
51: fprintf(stream, "%04x ", swap ? ntohs(*(p++)) : *(p++));
52: }
53:
54: /*
55: * Mop up an odd byte.
56: */
57: if (len & 1)
58: {
59: if ((!(i % 8)))
60: {
61: fprintf(stream, "\n%02x\t", (i * 2));
62: }
63: fprintf(stream, "%02x ", *(uint8_t *)p);
64: }
65: fprintf(stream, "\n");
66: }
67:
68:
69: void
70: libnet_diag_dump_context(libnet_t *l)
71: {
72: if (l == NULL)
73: {
74: return;
75: }
76:
77: fprintf(stderr, "fd:\t\t%d\n", l->fd);
78:
79: switch (l->injection_type)
80: {
81: case LIBNET_LINK:
82: fprintf(stderr, "injection type:\tLIBNET_LINK\n");
83: break;
84: case LIBNET_RAW4:
85: fprintf(stderr, "injection type:\tLIBNET_RAW4\n");
86: break;
87: case LIBNET_RAW6:
88: fprintf(stderr, "injection type:\tLIBNET_RAW6\n");
89: break;
90: case LIBNET_LINK_ADV:
91: fprintf(stderr, "injection type:\tLIBNET_LINK_ADV\n");
92: break;
93: case LIBNET_RAW4_ADV:
94: fprintf(stderr, "injection type:\tLIBNET_RAW4_ADV\n");
95: break;
96: case LIBNET_RAW6_ADV:
97: fprintf(stderr, "injection type:\tLIBNET_RAW6_ADV\n");
98: break;
99: default:
100: fprintf(stderr, "injection type:\tinvalid injection type %d\n",
101: l->injection_type);
102: break;
103: }
104:
105: fprintf(stderr, "pblock start:\t%p\n", l->protocol_blocks);
106: fprintf(stderr, "pblock end:\t%p\n", l->pblock_end);
107: fprintf(stderr, "link type:\t%d\n", l->link_type);
108: fprintf(stderr, "link offset:\t%d\n", l->link_offset);
109: fprintf(stderr, "aligner:\t%d\n", l->aligner);
110: fprintf(stderr, "device:\t\t%s\n", l->device);
111: fprintf(stderr, "packets sent:\t%lld\n", (long long int)l->stats.packets_sent);
112: fprintf(stderr, "packet errors:\t%lld\n", (long long int)l->stats.packet_errors);
113: fprintf(stderr, "bytes written:\t%lld\n", (long long int)l->stats.bytes_written);
114: fprintf(stderr, "ptag state:\t%d\n", l->ptag_state);
115: fprintf(stderr, "context label:\t%s\n", l->label);
116: fprintf(stderr, "last errbuf:\t%s\n", l->err_buf);
117: fprintf(stderr, "total size:\t%d\n", l->total_size);
118: }
119:
120: void
121: libnet_diag_dump_pblock(libnet_t *l)
122: {
123: uint32_t n;
124: libnet_pblock_t *p;
125:
126: for (p = l->protocol_blocks; p; p = p->next)
127: {
128: fprintf(stderr, "pblock type:\t%s\n",
129: libnet_diag_dump_pblock_type(p->type));
130: fprintf(stderr, "ptag number:\t%d\n", p->ptag);
131: fprintf(stderr, "pblock address:\t%p\n", p);
132: fprintf(stderr, "next pblock\t%p ", p->next);
133: if (p->next)
134: {
135: fprintf(stderr, "(%s)",
136: libnet_diag_dump_pblock_type(p->next->type));
137: }
138: fprintf(stderr, "\n");
139: fprintf(stderr, "prev pblock\t%p ", p->prev);
140: if (p->prev)
141: {
142: fprintf(stderr, "(%s)",
143: libnet_diag_dump_pblock_type(p->prev->type));
144: }
145: fprintf(stderr, "\n");
146: fprintf(stderr, "buf:\t\t");
147: for (n = 0; n < p->b_len; n++)
148: {
149: fprintf(stderr, "%02x", p->buf[n]);
150: }
151: fprintf(stderr, "\nbuffer length:\t%d\n", p->b_len);
152: if ((p->flags) & LIBNET_PBLOCK_DO_CHECKSUM)
153: {
154: fprintf(stderr, "checksum flag:\tYes\n");
155: fprintf(stderr, "chksum length:\t%d\n", p->h_len);
156: }
157: else
158: {
159: fprintf(stderr, "checksum flag:\tNo\n");
160: }
161: fprintf(stderr, "bytes copied:\t%d\n\n", p->copied);
162: }
163: }
164:
165: char *
166: libnet_diag_dump_pblock_type(uint8_t type)
167: {
168: switch (type)
169: {
170: /* below text can be regenerated using ./map-pblock-types */
171: case LIBNET_PBLOCK_ARP_H:
172: return ("arp");
173: case LIBNET_PBLOCK_DHCPV4_H:
174: return ("dhcpv4");
175: case LIBNET_PBLOCK_DNSV4_H:
176: return ("dnsv4");
177: case LIBNET_PBLOCK_ETH_H:
178: return ("eth");
179: case LIBNET_PBLOCK_ICMPV4_H:
180: return ("icmpv4");
181: case LIBNET_PBLOCK_ICMPV4_ECHO_H:
182: return ("icmpv4_echo");
183: case LIBNET_PBLOCK_ICMPV4_MASK_H:
184: return ("icmpv4_mask");
185: case LIBNET_PBLOCK_ICMPV4_UNREACH_H:
186: return ("icmpv4_unreach");
187: case LIBNET_PBLOCK_ICMPV4_TIMXCEED_H:
188: return ("icmpv4_timxceed");
189: case LIBNET_PBLOCK_ICMPV4_REDIRECT_H:
190: return ("icmpv4_redirect");
191: case LIBNET_PBLOCK_ICMPV4_TS_H:
192: return ("icmpv4_ts");
193: case LIBNET_PBLOCK_IGMP_H:
194: return ("igmp");
195: case LIBNET_PBLOCK_IPV4_H:
196: return ("ipv4");
197: case LIBNET_PBLOCK_IPO_H:
198: return ("ipo");
199: case LIBNET_PBLOCK_IPDATA:
200: return ("ipdata");
201: case LIBNET_PBLOCK_OSPF_H:
202: return ("ospf");
203: case LIBNET_PBLOCK_OSPF_HELLO_H:
204: return ("ospf_hello");
205: case LIBNET_PBLOCK_OSPF_DBD_H:
206: return ("ospf_dbd");
207: case LIBNET_PBLOCK_OSPF_LSR_H:
208: return ("ospf_lsr");
209: case LIBNET_PBLOCK_OSPF_LSU_H:
210: return ("ospf_lsu");
211: case LIBNET_PBLOCK_OSPF_LSA_H:
212: return ("ospf_lsa");
213: case LIBNET_PBLOCK_OSPF_AUTH_H:
214: return ("ospf_auth");
215: case LIBNET_PBLOCK_OSPF_CKSUM:
216: return ("ospf_cksum");
217: case LIBNET_PBLOCK_LS_RTR_H:
218: return ("ls_rtr");
219: case LIBNET_PBLOCK_LS_NET_H:
220: return ("ls_net");
221: case LIBNET_PBLOCK_LS_SUM_H:
222: return ("ls_sum");
223: case LIBNET_PBLOCK_LS_AS_EXT_H:
224: return ("ls_as_ext");
225: case LIBNET_PBLOCK_NTP_H:
226: return ("ntp");
227: case LIBNET_PBLOCK_RIP_H:
228: return ("rip");
229: case LIBNET_PBLOCK_TCP_H:
230: return ("tcp");
231: case LIBNET_PBLOCK_TCPO_H:
232: return ("tcpo");
233: case LIBNET_PBLOCK_TCPDATA:
234: return ("tcpdata");
235: case LIBNET_PBLOCK_UDP_H:
236: return ("udp");
237: case LIBNET_PBLOCK_VRRP_H:
238: return ("vrrp");
239: case LIBNET_PBLOCK_DATA_H:
240: return ("data");
241: case LIBNET_PBLOCK_CDP_H:
242: return ("cdp");
243: case LIBNET_PBLOCK_IPSEC_ESP_HDR_H:
244: return ("ipsec_esp_hdr");
245: case LIBNET_PBLOCK_IPSEC_ESP_FTR_H:
246: return ("ipsec_esp_ftr");
247: case LIBNET_PBLOCK_IPSEC_AH_H:
248: return ("ipsec_ah");
249: case LIBNET_PBLOCK_802_1Q_H:
250: return ("802_1q");
251: case LIBNET_PBLOCK_802_2_H:
252: return ("802_2");
253: case LIBNET_PBLOCK_802_2SNAP_H:
254: return ("802_2snap");
255: case LIBNET_PBLOCK_802_3_H:
256: return ("802_3");
257: case LIBNET_PBLOCK_STP_CONF_H:
258: return ("stp_conf");
259: case LIBNET_PBLOCK_STP_TCN_H:
260: return ("stp_tcn");
261: case LIBNET_PBLOCK_ISL_H:
262: return ("isl");
263: case LIBNET_PBLOCK_IPV6_H:
264: return ("ipv6");
265: case LIBNET_PBLOCK_802_1X_H:
266: return ("802_1x");
267: case LIBNET_PBLOCK_RPC_CALL_H:
268: return ("rpc_call");
269: case LIBNET_PBLOCK_MPLS_H:
270: return ("mpls");
271: case LIBNET_PBLOCK_FDDI_H:
272: return ("fddi");
273: case LIBNET_PBLOCK_TOKEN_RING_H:
274: return ("token_ring");
275: case LIBNET_PBLOCK_BGP4_HEADER_H:
276: return ("bgp4_header");
277: case LIBNET_PBLOCK_BGP4_OPEN_H:
278: return ("bgp4_open");
279: case LIBNET_PBLOCK_BGP4_UPDATE_H:
280: return ("bgp4_update");
281: case LIBNET_PBLOCK_BGP4_NOTIFICATION_H:
282: return ("bgp4_notification");
283: case LIBNET_PBLOCK_GRE_H:
284: return ("gre");
285: case LIBNET_PBLOCK_GRE_SRE_H:
286: return ("gre_sre");
287: case LIBNET_PBLOCK_IPV6_FRAG_H:
288: return ("ipv6_frag");
289: case LIBNET_PBLOCK_IPV6_ROUTING_H:
290: return ("ipv6_routing");
291: case LIBNET_PBLOCK_IPV6_DESTOPTS_H:
292: return ("ipv6_destopts");
293: case LIBNET_PBLOCK_IPV6_HBHOPTS_H:
294: return ("ipv6_hbhopts");
295: case LIBNET_PBLOCK_SEBEK_H:
296: return ("sebek");
297: case LIBNET_PBLOCK_HSRP_H:
298: return ("hsrp");
299: case LIBNET_PBLOCK_ICMPV6_H:
300: return ("icmpv6");
301: case LIBNET_PBLOCK_ICMPV6_ECHO_H:
302: return ("icmpv6_echo");
303: case LIBNET_PBLOCK_ICMPV6_UNREACH_H:
304: return ("icmpv6_unreach");
305: case LIBNET_PBLOCK_ICMPV6_NDP_NSOL_H:
306: return ("icmpv6_ndp_nsol");
307: case LIBNET_PBLOCK_ICMPV6_NDP_NADV_H:
308: return ("icmpv6_ndp_nadv");
309: case LIBNET_PBLOCK_ICMPV6_NDP_OPT_H:
310: return ("icmpv6_ndp_opt");
311: }
312: return ("unrecognized pblock");
313: }
314:
315: /**
316: * Local Variables:
317: * indent-tabs-mode: nil
318: * c-file-style: "stroustrup"
319: * End:
320: */
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