#include "gssapiP_eap.h"
+#include <pwd.h>
+
OM_uint32
gssEapAllocCred(OM_uint32 *minor, gss_cred_id_t *pCred)
{
return GSS_S_COMPLETE;
}
+static OM_uint32
+readDefaultIdentityAndCreds(OM_uint32 *minor,
+ gss_buffer_t defaultIdentity,
+ gss_buffer_t defaultCreds)
+{
+ OM_uint32 major, tmpMinor;
+ FILE *fp = NULL;
+ char pwbuf[BUFSIZ], buf[BUFSIZ];
+ char *ccacheName;
+ struct passwd *pw = NULL, pwd;
+
+ defaultIdentity->length = 0;
+ defaultIdentity->value = NULL;
+
+ defaultCreds->length = 0;
+ defaultCreds->value = NULL;
+
+ ccacheName = getenv("GSSEAP_IDENTITY");
+ if (ccacheName == NULL) {
+ if (getpwuid_r(getuid(), &pwd, pwbuf, sizeof(pwbuf), &pw) != 0 ||
+ pw == NULL || pw->pw_dir == NULL) {
+ major = GSS_S_CRED_UNAVAIL;
+ *minor = errno;
+ goto cleanup;
+ }
+
+ snprintf(buf, sizeof(buf), "%s/.gss_eap_id", pw->pw_dir);
+ ccacheName = buf;
+ }
+
+ fp = fopen(ccacheName, "r");
+ if (fp == NULL) {
+ major = GSS_S_CRED_UNAVAIL;
+ *minor = GSSEAP_NO_DEFAULT_CRED;
+ goto cleanup;
+ }
+
+ while (fgets(buf, sizeof(buf), fp) != NULL) {
+ gss_buffer_desc src, *dst;
+
+ src.length = strlen(buf);
+ src.value = buf;
+
+ if (src.length == 0)
+ break;
+
+ if (buf[src.length - 1] == '\n') {
+ buf[src.length - 1] = '\0';
+ if (--src.length == 0)
+ break;
+ }
+
+ if (defaultIdentity->value == NULL)
+ dst = defaultIdentity;
+ else if (defaultCreds->value == NULL)
+ dst = defaultCreds;
+ else
+ break;
+
+ major = duplicateBuffer(minor, &src, dst);
+ if (GSS_ERROR(major))
+ goto cleanup;
+ }
+
+ if (defaultIdentity->length == 0) {
+ major = GSS_S_CRED_UNAVAIL;
+ *minor = GSSEAP_NO_DEFAULT_CRED;
+ goto cleanup;
+ }
+
+ major = GSS_S_COMPLETE;
+ *minor = 0;
+
+cleanup:
+ if (fp != NULL)
+ fclose(fp);
+
+ if (GSS_ERROR(major)) {
+ gss_release_buffer(&tmpMinor, defaultIdentity);
+ gss_release_buffer(&tmpMinor, defaultCreds);
+ }
+
+ return major;
+}
+
OM_uint32
gssEapAcquireCred(OM_uint32 *minor,
const gss_name_t desiredName,
{
OM_uint32 major, tmpMinor;
gss_cred_id_t cred;
-#ifdef GSSEAP_DEBUG
- gss_buffer_desc envPassword;
-#endif
+ gss_buffer_desc defaultIdentity = GSS_C_EMPTY_BUFFER;
+ gss_name_t defaultIdentityName = GSS_C_NO_NAME;
+ gss_buffer_desc defaultCreds = GSS_C_EMPTY_BUFFER;
+ gss_OID nameMech = GSS_C_NO_OID;
/* XXX TODO validate with changed set_cred_option API */
*pCred = GSS_C_NO_CREDENTIAL;
break;
}
+ major = gssEapValidateMechs(minor, desiredMechs);
+ if (GSS_ERROR(major))
+ goto cleanup;
+
+ major = duplicateOidSet(minor, desiredMechs, &cred->mechanisms);
+ if (GSS_ERROR(major))
+ goto cleanup;
+
+ if (cred->mechanisms != GSS_C_NO_OID_SET &&
+ cred->mechanisms->count == 1)
+ nameMech = &cred->mechanisms->elements[0];
+
+ if (cred->flags & CRED_FLAG_INITIATE) {
+ major = readDefaultIdentityAndCreds(minor, &defaultIdentity, &defaultCreds);
+ if (major == GSS_S_COMPLETE) {
+ major = gssEapImportName(minor, &defaultIdentity, GSS_C_NT_USER_NAME,
+ nameMech, &defaultIdentityName);
+ if (GSS_ERROR(major))
+ goto cleanup;
+ } else if (major != GSS_S_CRED_UNAVAIL)
+ goto cleanup;
+ }
+
if (desiredName != GSS_C_NO_NAME) {
GSSEAP_MUTEX_LOCK(&desiredName->mutex);
}
GSSEAP_MUTEX_UNLOCK(&desiredName->mutex);
- } else {
- gss_buffer_desc nameBuf = GSS_C_EMPTY_BUFFER;
- gss_OID nameType = GSS_C_NO_OID;
- char loginName[256];
+ if (defaultIdentityName != GSS_C_NO_NAME) {
+ int nameEqual;
+
+ major = gssEapCompareName(minor, desiredName,
+ defaultIdentityName, &nameEqual);
+ if (GSS_ERROR(major))
+ goto cleanup;
+ else if (nameEqual)
+ cred->flags |= CRED_FLAG_DEFAULT_IDENTITY;
+ }
+ } else {
if (cred->flags & CRED_FLAG_ACCEPT) {
- char serviceName[5 + MAXHOSTNAMELEN] = "host@";
+ gss_buffer_desc nameBuf = GSS_C_EMPTY_BUFFER;
+ char serviceName[5 + MAXHOSTNAMELEN];
/* default host-based service is host@localhost */
+ memcpy(serviceName, "host@", 5);
if (gethostname(&serviceName[5], MAXHOSTNAMELEN) != 0) {
major = GSS_S_FAILURE;
*minor = GSSEAP_NO_HOSTNAME;
nameBuf.value = serviceName;
nameBuf.length = strlen((char *)nameBuf.value);
- nameType = GSS_C_NT_HOSTBASED_SERVICE;
- } else if (cred->flags & CRED_FLAG_INITIATE) {
- /* XXX FIXME temporary implementation */
- snprintf(loginName, sizeof(loginName), "%s@", getlogin());
- nameBuf.value = loginName;
- nameBuf.length = strlen(loginName);
-
- nameType = GSS_C_NT_USER_NAME;
- }
-
- if (nameBuf.length != 0) {
- gss_OID mech = GSS_C_NO_OID;
-
- if (cred->mechanisms != GSS_C_NO_OID_SET &&
- cred->mechanisms->count == 1)
- mech = &cred->mechanisms->elements[0];
-
- major = gssEapImportName(minor, &nameBuf, nameType, mech, &cred->name);
+ major = gssEapImportName(minor, &nameBuf, GSS_C_NT_HOSTBASED_SERVICE,
+ nameMech, &cred->name);
if (GSS_ERROR(major))
goto cleanup;
- }
+ } else if (cred->flags & CRED_FLAG_INITIATE) {
+ if (defaultIdentityName == GSS_C_NO_NAME) {
+ major = GSS_S_CRED_UNAVAIL;
+ *minor = GSSEAP_NO_DEFAULT_IDENTITY;
+ goto cleanup;
+ }
+ cred->name = defaultIdentityName;
+ defaultIdentityName = GSS_C_NO_NAME;
+ }
cred->flags |= CRED_FLAG_DEFAULT_IDENTITY;
}
-#ifdef GSSEAP_DEBUG
- if (password == GSS_C_NO_BUFFER &&
- (cred->flags & CRED_FLAG_DEFAULT_IDENTITY) &&
- (envPassword.value = getenv("GSSEAP_CREDS")) != NULL) {
- envPassword.length = strlen((char *)envPassword.value);
- major = duplicateBuffer(minor, &envPassword, &cred->password);
- if (GSS_ERROR(major))
- goto cleanup;
- } else
-#endif /* GSSEAP_DEBUG */
+ assert(cred->name != GSS_C_NO_NAME);
+
if (password != GSS_C_NO_BUFFER) {
major = duplicateBuffer(minor, password, &cred->password);
if (GSS_ERROR(major))
goto cleanup;
cred->flags |= CRED_FLAG_PASSWORD;
+ } else if (defaultCreds.value != NULL &&
+ (cred->flags & CRED_FLAG_DEFAULT_IDENTITY)) {
+ cred->password = defaultCreds;
+
+ defaultCreds.length = 0;
+ defaultCreds.value = NULL;
+
+ cred->flags |= CRED_FLAG_PASSWORD;
} else if (cred->flags & CRED_FLAG_INITIATE) {
/*
* OK, here we need to ask the supplicant if we have creds or it
&& !gssEapCanReauthP(cred, GSS_C_NO_NAME, timeReq)
#endif
major = GSS_S_CRED_UNAVAIL;
- *minor = GSSEAP_MISSING_PASSWORD;
+ *minor = GSSEAP_NO_DEFAULT_CRED;
goto cleanup;
}
- major = gssEapValidateMechs(minor, desiredMechs);
- if (GSS_ERROR(major))
- goto cleanup;
-
- major = duplicateOidSet(minor, desiredMechs, &cred->mechanisms);
- if (GSS_ERROR(major))
- goto cleanup;
-
if (pActualMechs != NULL) {
major = duplicateOidSet(minor, cred->mechanisms, pActualMechs);
if (GSS_ERROR(major))
cleanup:
if (GSS_ERROR(major))
gssEapReleaseCred(&tmpMinor, &cred);
+ gssEapReleaseName(&tmpMinor, &defaultIdentityName);
+ gss_release_buffer(&tmpMinor, &defaultIdentity);
+ if (defaultCreds.value != NULL) {
+ memset(defaultCreds.value, 0, defaultCreds.length);
+ gss_release_buffer(&tmpMinor, &defaultCreds);
+ }
return major;
}
projects / mech_eap.orig / blobdiff