- struct esp_algorithm *xf;
- 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 = 0;
- 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];
- char *nl;
-
- secretfile = fopen(line, FOPEN_READ_TXT);
- if(secretfile == NULL) {
- perror(line);
- exit(3);
- }
-
- while(fgets(fileline, sizeof(fileline)-1, secretfile) != NULL) {
-
- /* 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(fileline);
- }
- fclose(secretfile);
-
- return;
- }
-
- if(spikey) {
- char *spistr, *foo;
- u_int32_t spino;
- struct in_addr ina;
-
- spistr = strsep(&spikey, "@");
-
- spino = strtoul(spistr, &foo, 0);
- if(spistr == foo) {
- printf("print_esp: failed to decode spi# %s\n", foo);
- return;
- }
-
- if(inet_pton(AF_INET, spikey, &ina) <= 0) {
- printf("print_esp: can not decode IP# %s\n", spikey);
- return;
- }
-
- sa1.daddr = ina.s_addr;
- sa1.spi = spino;
- }
-
- if(decode) {
- char *colon;
- char espsecret_key[256];
- unsigned int len, i;
-
- /* skip any blank spaces */
- while(isspace(*decode)) decode++;
-
- colon = strchr(decode, ':');
- if(colon == NULL) {
- printf("failed to decode espsecret: %s\n", decode);
- return;
- }
-
- len = colon - decode;
- xf = esp_xforms;
- while(xf->name && strncasecmp(decode, xf->name, len)!=0) {
- xf++;
- }
- if(xf->name == NULL) {
- printf("failed to find cipher algo %s\n", decode);
- /* set to NULL transform */
- return;
- }
- sa1.xform = xf;
-
- colon++;
- if(colon[0]=='0' && colon[1]=='x') {
- /* decode some hex! */
- colon+=2;
- len = strlen(colon) / 2;
-
- if(len > 256) {
- printf("secret is too big: %d\n", len);
- return;
- }
-
- i = 0;
- while(colon[0] != '\0' && colon[1]!='\0') {
- espsecret_key[i]=hex2byte(colon);
- colon+=2;
- i++;
- }
- memcpy(sa1.secret, espsecret_key, i);
- sa1.secretlen=i;
- } else {
- i = strlen(colon);
- if(i < sizeof(sa1.secret)) {
- memcpy(sa1.secret, espsecret_key, i);
- sa1.secretlen = i;
- } else {
- memcpy(sa1.secret, espsecret_key, sizeof(sa1.secret));
- sa1.secretlen = sizeof(sa1.secret);
- }
- }
-
- }
-
- esp_print_addsa(&sa1, sa_def);
+ 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];
+ char *nl;
+
+ secretfile = fopen(line, FOPEN_READ_TXT);
+ if (secretfile == NULL) {
+ perror(line);
+ exit(3);
+ }
+
+ while (fgets(fileline, sizeof(fileline)-1, secretfile) != NULL) {
+ /* 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);
+ }
+ fclose(secretfile);
+
+ 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) {
+ char *colon, *p;
+ char espsecret_key[256];
+ int len;
+ size_t i;
+ const EVP_CIPHER *evp;
+ int authlen = 0;
+
+ /* skip any blank spaces */
+ while (isspace((unsigned char)*decode))
+ decode++;
+
+ colon = strchr(decode, ':');
+ if (colon == NULL) {
+ (*ndo->ndo_warning)(ndo, "failed to decode espsecret: %s\n", decode);
+ return;
+ }
+ *colon = '\0';
+
+ len = colon - decode;
+ if (strlen(decode) > strlen("-hmac96") &&
+ !strcmp(decode + strlen(decode) - strlen("-hmac96"),
+ "-hmac96")) {
+ p = strstr(decode, "-hmac96");
+ *p = '\0';
+ authlen = 12;
+ }
+ if (strlen(decode) > strlen("-cbc") &&
+ !strcmp(decode + strlen(decode) - strlen("-cbc"), "-cbc")) {
+ p = strstr(decode, "-cbc");
+ *p = '\0';
+ }
+ evp = EVP_get_cipherbyname(decode);
+ if (!evp) {
+ (*ndo->ndo_warning)(ndo, "failed to find cipher algo %s\n", decode);
+ sa1.evp = NULL;
+ sa1.authlen = 0;
+ sa1.ivlen = 0;
+ return;
+ }
+
+ sa1.evp = evp;
+ sa1.authlen = authlen;
+ sa1.ivlen = EVP_CIPHER_iv_length(evp);
+
+ colon++;
+ if (colon[0] == '0' && colon[1] == 'x') {
+ /* decode some hex! */
+ colon += 2;
+ len = strlen(colon) / 2;
+
+ if (len > 256) {
+ (*ndo->ndo_warning)(ndo, "secret is too big: %d\n", len);
+ return;
+ }
+
+ i = 0;
+ while (colon[0] != '\0' && colon[1]!='\0') {
+ espsecret_key[i] = hex2byte(ndo, colon);
+ colon += 2;
+ i++;
+ }
+
+ memcpy(sa1.secret, espsecret_key, i);
+ sa1.secretlen = i;
+ } else {
+ i = strlen(colon);
+
+ if (i < sizeof(sa1.secret)) {
+ memcpy(sa1.secret, colon, i);
+ sa1.secretlen = i;
+ } else {
+ memcpy(sa1.secret, colon, sizeof(sa1.secret));
+ sa1.secretlen = sizeof(sa1.secret);
+ }
+ }
+ }
+
+ esp_print_addsa(ndo, &sa1, sa_def);
projects / tcpdump / blobdiff