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hwaddr.c (3229) hwaddr.c (13572)
1/*
2 * hwaddr.c - routines that deal with hardware addresses.
3 * (i.e. Ethernet)
4 */
5
6#include <sys/types.h>
7#include <sys/param.h>
8#include <sys/socket.h>
9#include <sys/ioctl.h>
10
11#if defined(SUNOS) || defined(SVR4)
12#include <sys/sockio.h>
13#endif
14#ifdef SVR4
15#include <sys/stream.h>
16#include <stropts.h>
17#include <fcntl.h>
18#endif
19
1/*
2 * hwaddr.c - routines that deal with hardware addresses.
3 * (i.e. Ethernet)
4 */
5
6#include <sys/types.h>
7#include <sys/param.h>
8#include <sys/socket.h>
9#include <sys/ioctl.h>
10
11#if defined(SUNOS) || defined(SVR4)
12#include <sys/sockio.h>
13#endif
14#ifdef SVR4
15#include <sys/stream.h>
16#include <stropts.h>
17#include <fcntl.h>
18#endif
19
20#ifdef _AIX32
21#include <sys/time.h> /* for struct timeval in net/if.h */
22#include <net/if.h> /* for struct ifnet in net/if_arp.h */
23#endif
24
20#include <net/if_arp.h>
21#include <netinet/in.h>
25#include <net/if_arp.h>
26#include <netinet/in.h>
27
28#ifdef WIN_TCP
29#include <netinet/if_ether.h>
30#include <sys/dlpi.h>
31#endif
32
22#include <stdio.h>
23#ifndef NO_UNISTD
24#include <unistd.h>
25#endif
26#include <syslog.h>
27
28#ifndef USE_BFUNCS
29/* Yes, memcpy is OK here (no overlapped copies). */
30#include <memory.h>
31#define bcopy(a,b,c) memcpy(b,a,c)
32#define bzero(p,l) memset(p,0,l)
33#define bcmp(a,b,c) memcmp(a,b,c)
34#endif
35
33#include <stdio.h>
34#ifndef NO_UNISTD
35#include <unistd.h>
36#endif
37#include <syslog.h>
38
39#ifndef USE_BFUNCS
40/* Yes, memcpy is OK here (no overlapped copies). */
41#include <memory.h>
42#define bcopy(a,b,c) memcpy(b,a,c)
43#define bzero(p,l) memset(p,0,l)
44#define bcmp(a,b,c) memcmp(a,b,c)
45#endif
46
36/* For BSD 4.4, set arp entry by writing to routing socket */
37#if defined(BSD)
38#if BSD >= 199306
39extern int bsd_arp_set __P((struct in_addr *, char *, int));
47#ifndef ATF_INUSE /* Not defined on some systems (i.e. Linux) */
48#define ATF_INUSE 0
40#endif
49#endif
41#endif
42
43#include "bptypes.h"
44#include "hwaddr.h"
45#include "report.h"
46
47extern int debug;
48
49/*

--- 17 unchanged lines hidden (view full) ---

67int hwinfocnt = sizeof(hwinfolist) / sizeof(hwinfolist[0]);
68
69
70/*
71 * Setup the arp cache so that IP address 'ia' will be temporarily
72 * bound to hardware address 'ha' of length 'len'.
73 */
74void
50
51#include "bptypes.h"
52#include "hwaddr.h"
53#include "report.h"
54
55extern int debug;
56
57/*

--- 17 unchanged lines hidden (view full) ---

75int hwinfocnt = sizeof(hwinfolist) / sizeof(hwinfolist[0]);
76
77
78/*
79 * Setup the arp cache so that IP address 'ia' will be temporarily
80 * bound to hardware address 'ha' of length 'len'.
81 */
82void
75setarp(s, ia, ha, len)
83setarp(s, ia, hafamily, haddr, halen)
76 int s; /* socket fd */
84 int s; /* socket fd */
77 struct in_addr *ia;
78 u_char *ha;
79 int len;
85 struct in_addr *ia; /* protocol address */
86 int hafamily; /* HW address family */
87 u_char *haddr; /* HW address data */
88 int halen;
80{
81#ifdef SIOCSARP
89{
90#ifdef SIOCSARP
91#ifdef WIN_TCP
92 /* This is an SVR4 with different networking code from
93 * Wollongong WIN-TCP. Not quite like the Lachman code.
94 * Code from: drew@drewsun.FEITH.COM (Andrew B. Sudell)
95 */
96#undef SIOCSARP
97#define SIOCSARP ARP_ADD
98 struct arptab arpreq; /* Arp table entry */
99
100 bzero((caddr_t) &arpreq, sizeof(arpreq));
101 arpreq.at_flags = ATF_COM;
102
103 /* Set up IP address */
104 arpreq.at_in = ia->s_addr;
105
106 /* Set up Hardware Address */
107 bcopy(haddr, arpreq.at_enaddr, halen);
108
109 /* Set the Date Link type. */
110 /* XXX - Translate (hafamily) to dltype somehow? */
111 arpreq.at_dltype = DL_ETHER;
112
113#else /* WIN_TCP */
114 /* Good old Berkeley way. */
82 struct arpreq arpreq; /* Arp request ioctl block */
83 struct sockaddr_in *si;
115 struct arpreq arpreq; /* Arp request ioctl block */
116 struct sockaddr_in *si;
84#ifdef SVR4
85 int fd;
86 struct strioctl iocb;
87#endif /* SVR4 */
117 char *p;
88
118
89 bzero((caddr_t) & arpreq, sizeof(arpreq));
119 bzero((caddr_t) &arpreq, sizeof(arpreq));
90 arpreq.arp_flags = ATF_INUSE | ATF_COM;
91
92 /* Set up the protocol address. */
93 arpreq.arp_pa.sa_family = AF_INET;
94 si = (struct sockaddr_in *) &arpreq.arp_pa;
95 si->sin_addr = *ia;
96
97 /* Set up the hardware address. */
120 arpreq.arp_flags = ATF_INUSE | ATF_COM;
121
122 /* Set up the protocol address. */
123 arpreq.arp_pa.sa_family = AF_INET;
124 si = (struct sockaddr_in *) &arpreq.arp_pa;
125 si->sin_addr = *ia;
126
127 /* Set up the hardware address. */
98 bcopy(ha, arpreq.arp_ha.sa_data, len);
128#ifdef __linux__ /* XXX - Do others need this? -gwr */
129 /*
130 * Linux requires the sa_family field set.
131 * longyear@netcom.com (Al Longyear)
132 */
133 arpreq.arp_ha.sa_family = hafamily;
134#endif /* linux */
99
135
136 /* This variable is just to help catch type mismatches. */
137 p = arpreq.arp_ha.sa_data;
138 bcopy(haddr, p, halen);
139#endif /* WIN_TCP */
140
100#ifdef SVR4
101 /*
102 * And now the stuff for System V Rel 4.x which does not
103 * appear to allow SIOCxxx ioctls on a socket descriptor.
104 * Thanks to several people: (all sent the same fix)
105 * Barney Wolff <barney@databus.com>,
106 * bear@upsys.se (Bj|rn Sj|holm),
107 * Michael Kuschke <Michael.Kuschke@Materna.DE>,
108 */
141#ifdef SVR4
142 /*
143 * And now the stuff for System V Rel 4.x which does not
144 * appear to allow SIOCxxx ioctls on a socket descriptor.
145 * Thanks to several people: (all sent the same fix)
146 * Barney Wolff <barney@databus.com>,
147 * bear@upsys.se (Bj|rn Sj|holm),
148 * Michael Kuschke <Michael.Kuschke@Materna.DE>,
149 */
109 if ((fd=open("/dev/arp", O_RDWR)) < 0) {
110 report(LOG_ERR, "open /dev/arp: %s\n", get_errmsg());
111 }
112 iocb.ic_cmd = SIOCSARP;
113 iocb.ic_timout = 0;
114 iocb.ic_dp = (char *)&arpreq;
115 iocb.ic_len = sizeof(arpreq);
116 if (ioctl(fd, I_STR, (caddr_t)&iocb) < 0) {
117 report(LOG_ERR, "ioctl I_STR: %s\n", get_errmsg());
118 }
119 close (fd);
150 {
151 int fd;
152 struct strioctl iocb;
120
153
154 if ((fd=open("/dev/arp", O_RDWR)) < 0) {
155 report(LOG_ERR, "open /dev/arp: %s\n", get_errmsg());
156 }
157 iocb.ic_cmd = SIOCSARP;
158 iocb.ic_timout = 0;
159 iocb.ic_dp = (char *)&arpreq;
160 iocb.ic_len = sizeof(arpreq);
161 if (ioctl(fd, I_STR, (caddr_t)&iocb) < 0) {
162 report(LOG_ERR, "ioctl I_STR: %s\n", get_errmsg());
163 }
164 close (fd);
165 }
121#else /* SVR4 */
122 /*
123 * On SunOS, the ioctl sometimes returns ENXIO, and it
124 * appears to happen when the ARP cache entry you tried
125 * to add is already in the cache. (Sigh...)
126 * XXX - Should this error simply be ignored? -gwr
127 */
166#else /* SVR4 */
167 /*
168 * On SunOS, the ioctl sometimes returns ENXIO, and it
169 * appears to happen when the ARP cache entry you tried
170 * to add is already in the cache. (Sigh...)
171 * XXX - Should this error simply be ignored? -gwr
172 */
128 if (ioctl(s, SIOCSARP, (caddr_t) & arpreq) < 0) {
173 if (ioctl(s, SIOCSARP, (caddr_t) &arpreq) < 0) {
129 report(LOG_ERR, "ioctl SIOCSARP: %s", get_errmsg());
130 }
131#endif /* SVR4 */
132#else /* SIOCSARP */
174 report(LOG_ERR, "ioctl SIOCSARP: %s", get_errmsg());
175 }
176#endif /* SVR4 */
177#else /* SIOCSARP */
133#if defined(BSD) && (BSD >= 199306)
134 bsd_arp_set(ia, ha, len);
135#else /* Not BSD 4.4, and SIOCSARP not defined */
136 /*
137 * Oh well, SIOCSARP is not defined. Just run arp(8).
178 /*
179 * Oh well, SIOCSARP is not defined. Just run arp(8).
180 * Need to delete partial entry first on some systems.
138 * XXX - Gag!
139 */
181 * XXX - Gag!
182 */
140 char buf[256];
141 int status;
183 int status;
184 char buf[256];
185 char *a;
186 extern char *inet_ntoa();
142
187
143 sprintf(buf, "arp -s %s %s temp",
144 inet_ntoa(*ia), haddrtoa(ha, len));
188 a = inet_ntoa(*ia);
189 sprintf(buf, "arp -d %s; arp -s %s %s temp",
190 a, a, haddrtoa(haddr, halen));
145 if (debug > 2)
146 report(LOG_INFO, buf);
147 status = system(buf);
148 if (status)
149 report(LOG_ERR, "arp failed, exit code=0x%x", status);
150 return;
191 if (debug > 2)
192 report(LOG_INFO, buf);
193 status = system(buf);
194 if (status)
195 report(LOG_ERR, "arp failed, exit code=0x%x", status);
196 return;
151#endif /* ! 4.4 BSD */
152#endif /* SIOCSARP */
153}
154
155
156/*
157 * Convert a hardware address to an ASCII string.
158 */
159char *

--- 135 unchanged lines hidden --- 		197#endif /* SIOCSARP */
198}
199
200
201/*
202 * Convert a hardware address to an ASCII string.
203 */
204char *

--- 135 unchanged lines hidden ---