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-rw-r--r--radsecproxy.c251
1 files changed, 14 insertions, 237 deletions
diff --git a/radsecproxy.c b/radsecproxy.c
index 375d54d..7aaf9f3 100644
--- a/radsecproxy.c
+++ b/radsecproxy.c
@@ -70,13 +70,11 @@
#include "list.h"
#include "hash.h"
#include "util.h"
-#include "gconfig.h"
#include "radsecproxy.h"
#include "udp.h"
#include "tcp.h"
#include "tls.h"
#include "dtls.h"
-#include "tlscommon.h"
static struct options options;
static struct list *clconfs, *srvconfs;
@@ -515,7 +513,6 @@ void freeserver(struct server *server, uint8_t destroymutex) {
}
int addserver(struct clsrvconf *conf) {
- uint8_t type;
int i;
if (conf->servers) {
@@ -530,10 +527,8 @@ int addserver(struct clsrvconf *conf) {
memset(conf->servers, 0, sizeof(struct server));
conf->servers->conf = conf;
- type = conf->type;
-
-#ifdef DRADPROT_TLS
- if (type == RAD_DTLS)
+#ifdef RADPROT_DTLS
+ if (conf->type == RAD_DTLS)
conf->servers->rbios = newqueue();
#endif
conf->pdef->setsrcres();
@@ -585,194 +580,6 @@ int addserver(struct clsrvconf *conf) {
return 0;
}
-int subjectaltnameaddr(X509 *cert, int family, struct in6_addr *addr) {
- int loc, i, l, n, r = 0;
- char *v;
- X509_EXTENSION *ex;
- STACK_OF(GENERAL_NAME) *alt;
- GENERAL_NAME *gn;
-
- debug(DBG_DBG, "subjectaltnameaddr");
-
- loc = X509_get_ext_by_NID(cert, NID_subject_alt_name, -1);
- if (loc < 0)
- return r;
-
- ex = X509_get_ext(cert, loc);
- alt = X509V3_EXT_d2i(ex);
- if (!alt)
- return r;
-
- n = sk_GENERAL_NAME_num(alt);
- for (i = 0; i < n; i++) {
- gn = sk_GENERAL_NAME_value(alt, i);
- if (gn->type != GEN_IPADD)
- continue;
- r = -1;
- v = (char *)ASN1_STRING_data(gn->d.ia5);
- l = ASN1_STRING_length(gn->d.ia5);
- if (((family == AF_INET && l == sizeof(struct in_addr)) || (family == AF_INET6 && l == sizeof(struct in6_addr)))
- && !memcmp(v, &addr, l)) {
- r = 1;
- break;
- }
- }
- GENERAL_NAMES_free(alt);
- return r;
-}
-
-int cnregexp(X509 *cert, char *exact, regex_t *regex) {
- int loc, l;
- char *v, *s;
- X509_NAME *nm;
- X509_NAME_ENTRY *e;
- ASN1_STRING *t;
-
- nm = X509_get_subject_name(cert);
- loc = -1;
- for (;;) {
- loc = X509_NAME_get_index_by_NID(nm, NID_commonName, loc);
- if (loc == -1)
- break;
- e = X509_NAME_get_entry(nm, loc);
- t = X509_NAME_ENTRY_get_data(e);
- v = (char *) ASN1_STRING_data(t);
- l = ASN1_STRING_length(t);
- if (l < 0)
- continue;
- if (exact) {
- if (l == strlen(exact) && !strncasecmp(exact, v, l))
- return 1;
- } else {
- s = stringcopy((char *)v, l);
- if (!s) {
- debug(DBG_ERR, "malloc failed");
- continue;
- }
- if (regexec(regex, s, 0, NULL, 0)) {
- free(s);
- continue;
- }
- free(s);
- return 1;
- }
- }
- return 0;
-}
-
-int subjectaltnameregexp(X509 *cert, int type, char *exact, regex_t *regex) {
- int loc, i, l, n, r = 0;
- char *s, *v;
- X509_EXTENSION *ex;
- STACK_OF(GENERAL_NAME) *alt;
- GENERAL_NAME *gn;
-
- debug(DBG_DBG, "subjectaltnameregexp");
-
- loc = X509_get_ext_by_NID(cert, NID_subject_alt_name, -1);
- if (loc < 0)
- return r;
-
- ex = X509_get_ext(cert, loc);
- alt = X509V3_EXT_d2i(ex);
- if (!alt)
- return r;
-
- n = sk_GENERAL_NAME_num(alt);
- for (i = 0; i < n; i++) {
- gn = sk_GENERAL_NAME_value(alt, i);
- if (gn->type != type)
- continue;
- r = -1;
- v = (char *)ASN1_STRING_data(gn->d.ia5);
- l = ASN1_STRING_length(gn->d.ia5);
- if (l <= 0)
- continue;
-#ifdef DEBUG
- printfchars(NULL, gn->type == GEN_DNS ? "dns" : "uri", NULL, v, l);
-#endif
- if (exact) {
- if (memcmp(v, exact, l))
- continue;
- } else {
- s = stringcopy((char *)v, l);
- if (!s) {
- debug(DBG_ERR, "malloc failed");
- continue;
- }
- if (regexec(regex, s, 0, NULL, 0)) {
- free(s);
- continue;
- }
- free(s);
- }
- r = 1;
- break;
- }
- GENERAL_NAMES_free(alt);
- return r;
-}
-
-X509 *verifytlscert(SSL *ssl) {
- X509 *cert;
- unsigned long error;
-
- if (SSL_get_verify_result(ssl) != X509_V_OK) {
- debug(DBG_ERR, "verifytlscert: basic validation failed");
- while ((error = ERR_get_error()))
- debug(DBG_ERR, "verifytlscert: TLS: %s", ERR_error_string(error, NULL));
- return NULL;
- }
-
- cert = SSL_get_peer_certificate(ssl);
- if (!cert)
- debug(DBG_ERR, "verifytlscert: failed to obtain certificate");
- return cert;
-}
-
-int verifyconfcert(X509 *cert, struct clsrvconf *conf) {
- int r;
- uint8_t type = 0; /* 0 for DNS, AF_INET for IPv4, AF_INET6 for IPv6 */
- struct in6_addr addr;
-
- if (conf->certnamecheck && conf->prefixlen == 255) {
- if (inet_pton(AF_INET, conf->host, &addr))
- type = AF_INET;
- else if (inet_pton(AF_INET6, conf->host, &addr))
- type = AF_INET6;
-
- r = type ? subjectaltnameaddr(cert, type, &addr) : subjectaltnameregexp(cert, GEN_DNS, conf->host, NULL);
- if (r) {
- if (r < 0) {
- debug(DBG_WARN, "verifyconfcert: No subjectaltname matching %s %s", type ? "address" : "host", conf->host);
- return 0;
- }
- debug(DBG_DBG, "verifyconfcert: Found subjectaltname matching %s %s", type ? "address" : "host", conf->host);
- } else {
- if (!cnregexp(cert, conf->host, NULL)) {
- debug(DBG_WARN, "verifyconfcert: cn not matching host %s", conf->host);
- return 0;
- }
- debug(DBG_DBG, "verifyconfcert: Found cn matching host %s", conf->host);
- }
- }
- if (conf->certcnregex) {
- if (cnregexp(cert, NULL, conf->certcnregex) < 1) {
- debug(DBG_WARN, "verifyconfcert: CN not matching regex");
- return 0;
- }
- debug(DBG_DBG, "verifyconfcert: CN matching regex");
- }
- if (conf->certuriregex) {
- if (subjectaltnameregexp(cert, GEN_URI, NULL, conf->certuriregex) < 1) {
- debug(DBG_WARN, "verifyconfcert: subjectaltname URI not matching regex");
- return 0;
- }
- debug(DBG_DBG, "verifyconfcert: subjectaltname URI matching regex");
- }
- return 1;
-}
-
unsigned char *attrget(unsigned char *attrs, int length, uint8_t type) {
while (length > 1) {
if (ATTRTYPE(attrs) == type)
@@ -1286,7 +1093,7 @@ int msmppe(unsigned char *attrs, int length, uint8_t type, char *attrtxt, struct
return 1;
}
-int findvendorsubattr(uint32_t *attrs, uint32_t vendor, uint8_t subattr) {
+int findvendorsubattr(uint32_t *attrs, uint32_t vendor, uint32_t subattr) {
if (!attrs)
return 0;
@@ -1312,7 +1119,7 @@ int dovendorrewriterm(struct tlv *attr, uint32_t *removevendorattrs) {
if (!*removevendorattrs)
return 0;
- if (findvendorsubattr(removevendorattrs, vendor, -1))
+ if (findvendorsubattr(removevendorattrs, vendor, 256))
return 1; /* remove entire vendor attribute */
sublen = attr->l - 4;
@@ -1504,7 +1311,7 @@ void addttlattr(struct radmsg *msg, uint32_t *attrtype, uint8_t addttl) {
memset(ttl, 0, 4);
ttl[3] = addttl;
- if (attrtype[1] == -1) { /* not vendor */
+ if (attrtype[1] == 256) { /* not vendor */
attr = maketlv(attrtype[0], 4, ttl);
if (attr && !radmsg_add(msg, attr))
freetlv(attr);
@@ -1545,7 +1352,7 @@ int checkttl(struct radmsg *msg, uint32_t *attrtype) {
uint32_t vendor;
int sublen;
- if (attrtype[1] == -1) { /* not vendor */
+ if (attrtype[1] == 256) { /* not vendor */
attr = radmsg_gettype(msg, attrtype[0]);
if (attr)
return decttl(attr->l, attr->v);
@@ -2623,40 +2430,6 @@ int dynamicconfig(struct server *server) {
return 0;
}
-int addmatchcertattr(struct clsrvconf *conf) {
- char *v;
- regex_t **r;
-
- if (!strncasecmp(conf->matchcertattr, "CN:/", 4)) {
- r = &conf->certcnregex;
- v = conf->matchcertattr + 4;
- } else if (!strncasecmp(conf->matchcertattr, "SubjectAltName:URI:/", 20)) {
- r = &conf->certuriregex;
- v = conf->matchcertattr + 20;
- } else
- return 0;
- if (!*v)
- return 0;
- /* regexp, remove optional trailing / if present */
- if (v[strlen(v) - 1] == '/')
- v[strlen(v) - 1] = '\0';
- if (!*v)
- return 0;
-
- *r = malloc(sizeof(regex_t));
- if (!*r) {
- debug(DBG_ERR, "malloc failed");
- return 0;
- }
- if (regcomp(*r, v, REG_EXTENDED | REG_ICASE | REG_NOSUB)) {
- free(*r);
- *r = NULL;
- debug(DBG_ERR, "failed to compile regular expression %s", v);
- return 0;
- }
- return 1;
-}
-
/* should accept both names and numeric values, only numeric right now */
uint8_t attrname2val(char *attrname) {
int val = 0;
@@ -2672,11 +2445,11 @@ int vattrname2val(char *attrname, uint32_t *vendor, uint32_t *type) {
*vendor = atoi(attrname);
s = strchr(attrname, ':');
if (!s) {
- *type = -1;
+ *type = 256;
return 1;
}
*type = atoi(s + 1);
- return *type >= 0 && *type < 256;
+ return *type < 256;
}
/* should accept both names and numeric values, only numeric right now */
@@ -2856,7 +2629,7 @@ int setttlattr(struct options *opts, char *defaultattr) {
char *ttlattr = opts->ttlattr ? opts->ttlattr : defaultattr;
if (vattrname2val(ttlattr, opts->ttlattrtype, opts->ttlattrtype + 1) &&
- (opts->ttlattrtype[1] != -1 || opts->ttlattrtype[0] < 256))
+ (opts->ttlattrtype[1] != 256 || opts->ttlattrtype[0] < 256))
return 1;
debug(DBG_ERR, "setttlattr: invalid TTLAttribute value %s", ttlattr);
return 0;
@@ -2953,9 +2726,11 @@ int confclient_cb(struct gconffile **cf, void *arg, char *block, char *opt, char
"type", CONF_STR, &conftype,
"host", CONF_STR, &conf->host,
"secret", CONF_STR, &conf->secret,
+#if defined(RADPROT_TLS) || defined(RADPROT_DTLS)
"tls", CONF_STR, &conf->tls,
"matchcertificateattribute", CONF_STR, &conf->matchcertattr,
"CertificateNameCheck", CONF_BLN, &conf->certnamecheck,
+#endif
"DuplicateInterval", CONF_LINT, &dupinterval,
"addTTL", CONF_LINT, &addttl,
"rewrite", CONF_STR, &rewriteinalias,
@@ -3114,8 +2889,11 @@ int confserver_cb(struct gconffile **cf, void *arg, char *block, char *opt, char
"host", CONF_STR, &conf->host,
"port", CONF_STR, &conf->port,
"secret", CONF_STR, &conf->secret,
+#if defined(RADPROT_TLS) || defined(RADPROT_DTLS)
"tls", CONF_STR, &conf->tls,
"MatchCertificateAttribute", CONF_STR, &conf->matchcertattr,
+ "CertificateNameCheck", CONF_BLN, &conf->certnamecheck,
+#endif
"addTTL", CONF_LINT, &addttl,
"rewrite", CONF_STR, &rewriteinalias,
"rewriteIn", CONF_STR, &conf->confrewritein,
@@ -3123,7 +2901,6 @@ int confserver_cb(struct gconffile **cf, void *arg, char *block, char *opt, char
"StatusServer", CONF_BLN, &conf->statusserver,
"RetryInterval", CONF_LINT, &retryinterval,
"RetryCount", CONF_LINT, &retrycount,
- "CertificateNameCheck", CONF_BLN, &conf->certnamecheck,
"DynamicLookupCommand", CONF_STR, &conf->dynamiclookupcommand,
NULL
)) {
generated by cgit v1.1 at 2024-12-28 15:36:39 +0000