/*
*
* special form: file /name
* causes us to go read from this file instead.
*
*/
static void esp_print_decode_onesecret(netdissect_options *ndo, char *line,
const char *file, int lineno)
{
struct sa_list sa1;
int sa_def;
char *spikey;
char *decode;
spikey = strsep(&line, " \t");
sa_def = 0;
memset(&sa1, 0, sizeof(struct sa_list));
/* if there is only one token, then it is an algo:key token */
if (line == NULL) {
decode = spikey;
spikey = NULL;
/* memset(&sa1.daddr, 0, sizeof(sa1.daddr)); */
/* sa1.spi = 0; */
sa_def = 1;
} else
decode = line;
if (spikey && strcasecmp(spikey, "file") == 0) {
/* open file and read it */
FILE *secretfile;
char fileline[1024];
int lineno=0;
char *nl;
char *filename = line;
secretfile = fopen(filename, FOPEN_READ_TXT);
if (secretfile == NULL) {
perror(filename);
exit(3);
}
while (fgets(fileline, sizeof(fileline)-1, secretfile) != NULL) {
lineno++;
/* remove newline from the line */
nl = strchr(fileline, '\n');
if (nl)
*nl = '\0';
if (fileline[0] == '#') continue;
if (fileline[0] == '\0') continue;
esp_print_decode_onesecret(ndo, fileline, filename, lineno);
}
fclose(secretfile);
return;
}
if (spikey && strcasecmp(spikey, "ikev2") == 0) {
esp_print_decode_ikeline(ndo, line, file, lineno);
return;
}
if (spikey) {
char *spistr, *foo;
u_int32_t spino;
struct sockaddr_in *sin;
#ifdef INET6
struct sockaddr_in6 *sin6;
#endif
spistr = strsep(&spikey, "@");
spino = strtoul(spistr, &foo, 0);
if (spistr == foo || !spikey) {
(*ndo->ndo_warning)(ndo, "print_esp: failed to decode spi# %s\n", foo);
return;
}
sa1.spi = spino;
sin = (struct sockaddr_in *)&sa1.daddr;
#ifdef INET6
sin6 = (struct sockaddr_in6 *)&sa1.daddr;
if (inet_pton(AF_INET6, spikey, &sin6->sin6_addr) == 1) {
#ifdef HAVE_SOCKADDR_SA_LEN
sin6->sin6_len = sizeof(struct sockaddr_in6);
#endif
sin6->sin6_family = AF_INET6;
} else
#endif
if (inet_pton(AF_INET, spikey, &sin->sin_addr) == 1) {
#ifdef HAVE_SOCKADDR_SA_LEN
sin->sin_len = sizeof(struct sockaddr_in);
#endif
sin->sin_family = AF_INET;
} else {
(*ndo->ndo_warning)(ndo, "print_esp: can not decode IP# %s\n", spikey);
return;
}
}
if (decode) {
/* skip any blank spaces */
while (isspace((unsigned char)*decode))
decode++;
if(!espprint_decode_encalgo(ndo, decode, &sa1)) {
return;
}
}
esp_print_addsa(ndo, &sa1, sa_def);
}
/*
*
* special form: file /name
* causes us to go read from this file instead.
*
*/
static void esp_print_decode_onesecret(netdissect_options *ndo, char *line,
const char *file, int lineno)
{
struct sa_list sa1;
int sa_def;
char *spikey;
char *decode;
spikey = strsep(&line, " \t");
sa_def = 0;
memset(&sa1, 0, sizeof(struct sa_list));
/* if there is only one token, then it is an algo:key token */
if (line == NULL) {
decode = spikey;
spikey = NULL;
/* sa1.daddr.version = 0; */
/* memset(&sa1.daddr, 0, sizeof(sa1.daddr)); */
/* sa1.spi = 0; */
sa_def = 1;
} else
decode = line;
if (spikey && ascii_strcasecmp(spikey, "file") == 0) {
/* open file and read it */
FILE *secretfile;
char fileline[1024];
int subfile_lineno=0;
char *nl;
char *filename = line;
secretfile = fopen(filename, FOPEN_READ_TXT);
if (secretfile == NULL) {
perror(filename);
exit(3);
}
while (fgets(fileline, sizeof(fileline)-1, secretfile) != NULL) {
subfile_lineno++;
/* remove newline from the line */
nl = strchr(fileline, '\n');
if (nl)
*nl = '\0';
if (fileline[0] == '#') continue;
if (fileline[0] == '\0') continue;
esp_print_decode_onesecret(ndo, fileline, filename, subfile_lineno);
}
fclose(secretfile);
return;
}
if (spikey && ascii_strcasecmp(spikey, "ikev2") == 0) {
esp_print_decode_ikeline(ndo, line, file, lineno);
return;
}
if (spikey) {
char *spistr, *foo;
uint32_t spino;
spistr = strsep(&spikey, "@");
spino = strtoul(spistr, &foo, 0);
if (spistr == foo || !spikey) {
(*ndo->ndo_warning)(ndo, "print_esp: failed to decode spi# %s\n", foo);
return;
}
sa1.spi = spino;
if (strtoaddr6(spikey, &sa1.daddr.in6) == 1) {
sa1.daddr_version = 6;
} else if (strtoaddr(spikey, &sa1.daddr.in4) == 1) {
sa1.daddr_version = 4;
} else {
(*ndo->ndo_warning)(ndo, "print_esp: can not decode IP# %s\n", spikey);
return;
}
}
if (decode) {
/* skip any blank spaces */
while (isspace((unsigned char)*decode))
decode++;
if(!espprint_decode_encalgo(ndo, decode, &sa1)) {
return;
}
}
esp_print_addsa(ndo, &sa1, sa_def);
}