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[FreeBSD/FreeBSD.git] / contrib / ipfilter / ipsend / sdlpi.c
1 /*      $FreeBSD$       */
2
3 /*
4  * (C)opyright 1992-1998 Darren Reed. (from tcplog)
5  *
6  * See the IPFILTER.LICENCE file for details on licencing.
7  *
8  */
9
10 #include <stdio.h>
11 #include <netdb.h>
12 #include <ctype.h>
13 #include <fcntl.h>
14 #include <signal.h>
15 #include <errno.h>
16 #include <sys/types.h>
17 #include <sys/time.h>
18 #include <sys/timeb.h>
19 #include <sys/socket.h>
20 #include <sys/file.h>
21 #include <sys/ioctl.h>
22 #include <sys/stropts.h>
23
24 #ifdef sun
25 # include <sys/pfmod.h>
26 # include <sys/bufmod.h>
27 #endif
28 # include <sys/dlpi.h>
29
30 #include <net/if.h>
31 #include <netinet/in.h>
32 #include <netinet/in_systm.h>
33 #include <netinet/ip.h>
34 #include <netinet/if_ether.h>
35 #include <netinet/ip_var.h>
36 #include <netinet/udp.h>
37 #include <netinet/udp_var.h>
38 #include <netinet/tcp.h>
39
40 #include "ipsend.h"
41
42 #if !defined(lint)
43 static const char sccsid[] = "@(#)sdlpi.c       1.3 10/30/95 (C)1995 Darren Reed";
44 static const char rcsid[] = "@(#)$Id$";
45 #endif
46
47 #define CHUNKSIZE       8192
48 #define BUFSPACE        (4*CHUNKSIZE)
49
50
51 /*
52  * Be careful to only include those defined in the flags option for the
53  * interface are included in the header size.
54  */
55 int     initdevice(device, tout)
56         char    *device;
57         int     tout;
58 {
59         char    devname[16], *s, buf[256];
60         int     i, fd;
61
62         (void) strcpy(devname, "/dev/");
63         (void) strncat(devname, device, sizeof(devname) - strlen(devname));
64
65         s = devname + 5;
66         while (*s && !ISDIGIT(*s))
67                 s++;
68         if (!*s)
69             {
70                 fprintf(stderr, "bad device name %s\n", devname);
71                 exit(-1);
72             }
73         i = atoi(s);
74         *s = '\0';
75         /*
76          * For writing
77          */
78         if ((fd = open(devname, O_RDWR)) < 0)
79             {
80                 fprintf(stderr, "O_RDWR(1) ");
81                 perror(devname);
82                 exit(-1);
83             }
84
85         if (dlattachreq(fd, i) == -1)
86             {
87                 fprintf(stderr, "dlattachreq: DLPI error\n");
88                 exit(-1);
89             }
90         else if (dlokack(fd, buf) == -1)
91             {
92                 fprintf(stderr, "dlokack(attach): DLPI error\n");
93                 exit(-1);
94             }
95 #ifdef DL_HP_RAWDLS
96         if (dlpromisconreq(fd, DL_PROMISC_SAP) < 0)
97             {
98                 fprintf(stderr, "dlpromisconreq: DL_PROMISC_PHYS error\n");
99                 exit(-1);
100             }
101         else if (dlokack(fd, buf) < 0)
102             {
103                 fprintf(stderr, "dlokack(promisc): DLPI error\n");
104                 exit(-1);
105             }
106         /* 22 is INSAP as per the HP-UX DLPI Programmer's Guide */
107
108         dlbindreq(fd, 22, 1, DL_HP_RAWDLS, 0, 0);
109 #else
110         dlbindreq(fd, ETHERTYPE_IP, 0, DL_CLDLS, 0, 0);
111 #endif
112         dlbindack(fd, buf);
113         /*
114          * write full headers
115          */
116 #ifdef DLIOCRAW /* we require RAW DLPI mode, which is a Sun extension */
117         if (strioctl(fd, DLIOCRAW, -1, 0, NULL) == -1)
118             {
119                 fprintf(stderr, "DLIOCRAW error\n");
120                 exit(-1);
121             }
122 #endif
123         return fd;
124 }
125
126
127 /*
128  * output an IP packet onto a fd opened for /dev/nit
129  */
130 int     sendip(fd, pkt, len)
131         int     fd, len;
132         char    *pkt;
133 {
134         struct strbuf dbuf, *dp = &dbuf, *cp = NULL;
135         int pri = 0;
136 #ifdef DL_HP_RAWDLS
137         struct strbuf cbuf;
138         dl_hp_rawdata_req_t raw;
139
140         cp = &cbuf;
141         raw.dl_primitive = DL_HP_RAWDATA_REQ;
142         cp->len = sizeof(raw);
143         cp->buf = (char *)&raw;
144         cp->maxlen = cp->len;
145         pri = MSG_HIPRI;
146 #endif
147         /*
148          * construct NIT STREAMS messages, first control then data.
149          */
150         dp->buf = pkt;
151         dp->len = len;
152         dp->maxlen = dp->len;
153
154         if (putmsg(fd, cp, dp, pri) == -1)
155             {
156                 perror("putmsg");
157                 return -1;
158             }
159         if (ioctl(fd, I_FLUSH, FLUSHW) == -1)
160             {
161                 perror("I_FLUSHW");
162                 return -1;
163             }
164         return len;
165 }
166