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--- tunip.c.orig 1999-09-21 22:20:40 UTC
+++ tunip.c
@@ -35,6 +35,8 @@
#include <unistd.h>
#include <fcntl.h>
#include <stdio.h>
+#include <sys/ioctl.h>
+#include <net/if_tun.h>
#include <netinet/in_systm.h>
#include <netinet/in.h>
#include <netinet/ip.h>
@@ -54,12 +56,14 @@
#include <blowfish.h>
#include <cast.h>
#include <des.h>
+#ifndef NO_IDEA
#include <idea.h>
+#endif
#include "defs.h"
-#define _PATH_CONF "/etc/ipsec/pipsecd.conf"
-#define _PATH_STARTUP "/etc/ipsec/startup"
+#define _PATH_CONF FILE_PREFIX "/etc/ipsec/pipsecd.conf"
+#define _PATH_STARTUP FILE_PREFIX "/etc/ipsec/startup"
#define _PATH_DEV_RANDOM "/dev/random"
#ifdef USE_ETHERTAP
@@ -100,6 +104,7 @@ struct ethtap_header ethtap;
#endif
unsigned char buf[MAX_HEADER+MAX_PACKET];
+char *cmd;
typedef union {
MD5_CTX md5;
@@ -124,14 +129,16 @@ typedef struct hash_method {
typedef union {
BF_KEY bf;
- des_key_schedule des;
+ DES_key_schedule des;
struct {
- des_key_schedule k1;
- des_key_schedule k2;
- des_key_schedule k3;
+ DES_key_schedule k1;
+ DES_key_schedule k2;
+ DES_key_schedule k3;
} des3;
CAST_KEY cast;
+#ifndef NO_IDEA
IDEA_KEY_SCHEDULE idea;
+#endif
} crypt_key;
typedef struct crypt_method {
@@ -304,12 +311,14 @@ void cast_cbc_encrypt(unsigned char *iv,
void cast_cbc_decrypt(unsigned char *iv, crypt_key *dk,
unsigned char *ct, unsigned int len);
int cast_setkey(unsigned char *b, unsigned int len, crypt_key *k);
+#ifndef NO_IDEA
void my_idea_cbc_encrypt(unsigned char *iv, crypt_key *ek,
unsigned char *t, unsigned int len);
void my_idea_cbc_decrypt(unsigned char *iv, crypt_key *dk,
unsigned char *ct, unsigned int len);
int my_idea_set_encrypt_key(unsigned char *b, unsigned int len, crypt_key *k);
int my_idea_set_decrypt_key(unsigned char *b, unsigned int len, crypt_key *k);
+#endif
void my_des_cbc_encrypt(unsigned char *iv, crypt_key *ek,
unsigned char *t, unsigned int len);
void my_des_cbc_decrypt(unsigned char *iv, crypt_key *dk,
@@ -379,14 +388,20 @@ hash_method_t hash_ripemd160 = {
hash_method_t *hash_list = &hash_ripemd160;
+#ifndef NO_IDEA
crypt_method_t crypt_idea = {
NULL,
"idea_cbc", 8, 8,
my_idea_cbc_encrypt, my_idea_cbc_decrypt,
my_idea_set_encrypt_key, my_idea_set_decrypt_key
};
+#endif
crypt_method_t crypt_cast = {
+#ifndef NO_IDEA
&crypt_idea,
+#else
+ NULL,
+#endif
"cast_cbc", 8, 8,
cast_cbc_encrypt, cast_cbc_decrypt,
cast_setkey, cast_setkey
@@ -704,13 +719,22 @@ void tun_new(struct tun_method *this,
*/
int tun_send_ip(struct tun_method *this, struct encap_method *encap, int fd)
{
- int sent;
+ int sent, i;
if (this->link_header_size) {
encap->buflen += this->link_header_size;
encap->buf -= this->link_header_size;
memcpy(encap->buf, this->link_header, this->link_header_size);
}
+#if 0
+ printf ("Packet sent to tun dev:");
+ for (i = 0; i < encap->buflen; i++) {
+ if (!(i % 16))
+ printf ("\n ");
+ printf (" %02x", encap->buf[i]);
+ }
+ printf ("\n\n");
+#endif
sent = write(fd, encap->buf, encap->buflen);
if (sent != encap->buflen)
syslog(LOG_ERR, "truncated in: %d -> %d\n", encap->buflen, sent);
@@ -1120,6 +1144,7 @@ void config_read(FILE *cf)
}
} else if (strcmp(arg, "if") == 0) {
int fd;
+ int i = 0;
struct sa_desc *local_sa, *remote_sa;
struct peer_desc *peer;
@@ -1128,6 +1153,7 @@ void config_read(FILE *cf)
perror(arg);
continue;
}
+ ioctl (fd, TUNSIFHEAD, &i);
local_sa = NULL;
remote_sa = NULL;
@@ -1974,6 +2000,7 @@ int cast_setkey(unsigned char *b, unsign
return 0;
}
+#ifndef NO_IDEA
void my_idea_cbc_encrypt(unsigned char *iv, crypt_key *ek,
unsigned char *t, unsigned int len)
{
@@ -2002,11 +2029,12 @@ int my_idea_set_decrypt_key(unsigned cha
idea_set_decrypt_key(&k->idea, &k->idea);
return 0;
}
+#endif
void my_des_cbc_encrypt(unsigned char *iv, crypt_key *ek,
unsigned char *t, unsigned int len)
{
- des_cbc_encrypt(t, t, len, ek->des, iv, DES_ENCRYPT);
+ DES_cbc_encrypt(t, t, len, &ek->des, iv, DES_ENCRYPT);
}
void my_des_cbc_decrypt(unsigned char *iv, crypt_key *dk,
@@ -2018,7 +2046,7 @@ void my_des_cbc_decrypt(unsigned char *i
for (i = 0; i < len; i++) printf(" %02x", ct[i]);
printf("\n");
#endif
- des_cbc_encrypt(ct, ct, len, dk->des, iv, DES_DECRYPT);
+ DES_cbc_encrypt(ct, ct, len, &dk->des, iv, DES_DECRYPT);
#if 0
printf("%d bytes after decrypt\n", len);
for (i = 0; i < len; i++) printf(" %02x", ct[i]);
@@ -2029,23 +2057,23 @@ void my_des_cbc_decrypt(unsigned char *i
int my_des_setkey(unsigned char *b, unsigned int len, crypt_key *k)
{
if (len == 8)
- return des_set_key(b, k->des);
+ return DES_set_key(b, &k->des);
return -1;
}
void my_des3_cbc_encrypt(unsigned char *iv, crypt_key *ek,
unsigned char *t, unsigned int len)
{
- des_ede3_cbc_encrypt(t, t, len,
- ek->des3.k1, ek->des3.k2, ek->des3.k3,
+ DES_ede3_cbc_encrypt(t, t, len,
+ &ek->des3.k1, &ek->des3.k2, &ek->des3.k3,
iv, DES_ENCRYPT);
}
void my_des3_cbc_decrypt(unsigned char *iv, crypt_key *dk,
unsigned char *ct, unsigned int len)
{
- des_ede3_cbc_encrypt(ct, ct, len,
- dk->des3.k1, dk->des3.k2, dk->des3.k3,
+ DES_ede3_cbc_encrypt(ct, ct, len,
+ &dk->des3.k1, &dk->des3.k2, &dk->des3.k3,
iv, DES_DECRYPT);
}
@@ -2054,11 +2082,11 @@ int my_des3_setkey(unsigned char *b, uns
if (len != 24)
return -1;
- if (des_set_key(b, k->des3.k1) != 0)
+ if (DES_set_key(b, &k->des3.k1) != 0)
return -1;
- if (des_set_key(b+8, k->des3.k2) != 0)
+ if (DES_set_key(b+8, &k->des3.k2) != 0)
return -1;
- if (des_set_key(b+16, k->des3.k3) != 0)
+ if (DES_set_key(b+16, &k->des3.k3) != 0)
return -1;
return 0;
@@ -2081,6 +2109,11 @@ int null_setkey(unsigned char *b, unsign
return 0;
}
+void usage()
+{
+ fprintf(stderr, "%s: usage: [ -c CONFIG ] [ -s SCRIPT ]\n", cmd);
+ exit(1);
+}
int main(int argc, char **argv)
{
time_t t;
@@ -2088,9 +2121,14 @@ int main(int argc, char **argv)
int pack, i;
struct sockaddr_in from;
struct stat sb;
+ int ch;
+ char *path_conf = _PATH_CONF;
+ char *path_startup = _PATH_STARTUP;
FILE *f;
+ cmd=argv[0];
+
openlog ("pipsecd", LOG_PID, LOG_DAEMON);
syslog (LOG_NOTICE, "pipsecd starting");
@@ -2113,7 +2151,21 @@ int main(int argc, char **argv)
if (encap_icmp_new(&encap_meth[ENCAP_ICMP], IPPROTO_ICMP) == -1)
exit(1);
- f = fopen(_PATH_CONF, "r");
+ while ((ch = getopt(argc, argv, "c:s:")) != -1) {
+ switch (ch) {
+ case 'c':
+ path_conf = optarg;
+ break;
+ case 's':
+ path_startup = optarg;
+ break;
+ case '?':
+ default:
+ usage();
+ }
+ }
+
+ f = fopen(path_conf, "r");
if (f == NULL) {
perror("configuration file");
exit(1);
@@ -2123,8 +2175,8 @@ int main(int argc, char **argv)
fclose(f);
/* Execute startup script, if any */
- if (stat(_PATH_STARTUP, &sb) == 0 && (sb.st_mode & 0400))
- system(_PATH_STARTUP);
+ if (stat(path_startup, &sb) == 0 && (sb.st_mode & 0400))
+ system(path_startup);
/* Send a probe to every peer on startup */
for (i = 0; i < peer_num; i++)
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