#if HAVE_KRB5 && HAVE_GSSAPI
#ifdef __cplusplus
-extern "C"
-{
+extern "C" {
#endif
#if HAVE_PROFILE_H
#elif !HAVE_ERROR_MESSAGE && HAVE_KRB5_GET_ERROR_MESSAGE
#define error_message(code) krb5_get_error_message(kparam.context,code)
#elif !HAVE_ERROR_MESSAGE
-static char err_code[17];
-const char *KRB5_CALLCONV
-error_message(long code)
-{
- snprintf(err_code,16,"%ld",code);
- return err_code;
-}
+ static char err_code[17];
+ const char *KRB5_CALLCONV
+ error_message(long code) {
+ snprintf(err_code,16,"%ld",code);
+ return err_code;
+ }
#endif
#ifndef gss_mech_spnego
static gss_OID_desc _gss_mech_spnego =
- { 6, (void *) "\x2b\x06\x01\x05\x05\x02" };
+ { 6, (void *) "\x2b\x06\x01\x05\x05\x02" };
gss_OID gss_mech_spnego = &_gss_mech_spnego;
#endif
#if HAVE_NAS_KERBEROS
#include <ibm_svc/krb5_svc.h>
- const char *KRB5_CALLCONV error_message(long code)
- {
- char *msg = NULL;
- krb5_svc_get_msg(code, &msg);
- return msg;
+ const char *KRB5_CALLCONV error_message(long code) {
+ char *msg = NULL;
+ krb5_svc_get_msg(code, &msg);
+ return msg;
}
#endif
-/*
- * Kerberos context and cache structure
- * Caches authentication details to reduce
- * number of authentication requests to kdc
- */
- static struct kstruct
- {
- krb5_context context;
- krb5_ccache cc;
+ /*
+ * Kerberos context and cache structure
+ * Caches authentication details to reduce
+ * number of authentication requests to kdc
+ */
+ static struct kstruct {
+ krb5_context context;
+ krb5_ccache cc;
} kparam = {
- NULL, NULL};
-
-/*
- * krb5_create_cache creates a Kerberos file credential cache or a memory
- * credential cache if supported. The initial key for the principal
- * principal_name is extracted from the keytab keytab_filename.
- *
- * If keytab_filename is NULL the default will be used.
- * If principal_name is NULL the first working entry of the keytab will be used.
- */
+ NULL, NULL};
+
+ /*
+ * krb5_create_cache creates a Kerberos file credential cache or a memory
+ * credential cache if supported. The initial key for the principal
+ * principal_name is extracted from the keytab keytab_filename.
+ *
+ * If keytab_filename is NULL the default will be used.
+ * If principal_name is NULL the first working entry of the keytab will be used.
+ */
int krb5_create_cache(char *keytab_filename, char *principal_name);
-/*
- * krb5_cleanup clears used Keberos memory
- */
+ /*
+ * krb5_cleanup clears used Keberos memory
+ */
void krb5_cleanup(void);
-/*
- * check_gss_err checks for gssapi error codes, extracts the error message
- * and prints it.
- */
+ /*
+ * check_gss_err checks for gssapi error codes, extracts the error message
+ * and prints it.
+ */
int check_gss_err(OM_uint32 major_status, OM_uint32 minor_status,
- const char *function);
+ const char *function);
int check_gss_err(OM_uint32 major_status, OM_uint32 minor_status,
- const char *function)
- {
- if (GSS_ERROR(major_status)) {
- OM_uint32 maj_stat, min_stat;
- OM_uint32 msg_ctx = 0;
- gss_buffer_desc status_string;
- char buf[1024];
- size_t len;
-
- len = 0;
- msg_ctx = 0;
- while (!msg_ctx) {
- /* convert major status code (GSS-API error) to text */
- maj_stat = gss_display_status(&min_stat, major_status,
- GSS_C_GSS_CODE, GSS_C_NULL_OID, &msg_ctx, &status_string);
- if (maj_stat == GSS_S_COMPLETE) {
- if (sizeof(buf) > len + status_string.length + 1) {
- memcpy(buf + len, status_string.value,
- status_string.length);
- len += status_string.length;
- }
- gss_release_buffer(&min_stat, &status_string);
- break;
- }
- gss_release_buffer(&min_stat, &status_string);
- }
- if (sizeof(buf) > len + 2) {
- strcpy(buf + len, ". ");
- len += 2;
- }
- msg_ctx = 0;
- while (!msg_ctx) {
- /* convert minor status code (underlying routine error) to text */
- maj_stat = gss_display_status(&min_stat, minor_status,
- GSS_C_MECH_CODE, GSS_C_NULL_OID, &msg_ctx, &status_string);
- if (maj_stat == GSS_S_COMPLETE) {
- if (sizeof(buf) > len + status_string.length) {
- memcpy(buf + len, status_string.value,
- status_string.length);
- len += status_string.length;
- }
- gss_release_buffer(&min_stat, &status_string);
- break;
- }
- gss_release_buffer(&min_stat, &status_string);
- }
- debugs(11, 5, HERE << function << "failed: " << buf);
- return (1);
- }
- return (0);
+ const char *function) {
+ if (GSS_ERROR(major_status)) {
+ OM_uint32 maj_stat, min_stat;
+ OM_uint32 msg_ctx = 0;
+ gss_buffer_desc status_string;
+ char buf[1024];
+ size_t len;
+
+ len = 0;
+ msg_ctx = 0;
+ while (!msg_ctx) {
+ /* convert major status code (GSS-API error) to text */
+ maj_stat = gss_display_status(&min_stat, major_status,
+ GSS_C_GSS_CODE, GSS_C_NULL_OID, &msg_ctx, &status_string);
+ if (maj_stat == GSS_S_COMPLETE) {
+ if (sizeof(buf) > len + status_string.length + 1) {
+ memcpy(buf + len, status_string.value,
+ status_string.length);
+ len += status_string.length;
+ }
+ gss_release_buffer(&min_stat, &status_string);
+ break;
+ }
+ gss_release_buffer(&min_stat, &status_string);
+ }
+ if (sizeof(buf) > len + 2) {
+ strcpy(buf + len, ". ");
+ len += 2;
+ }
+ msg_ctx = 0;
+ while (!msg_ctx) {
+ /* convert minor status code (underlying routine error) to text */
+ maj_stat = gss_display_status(&min_stat, minor_status,
+ GSS_C_MECH_CODE, GSS_C_NULL_OID, &msg_ctx, &status_string);
+ if (maj_stat == GSS_S_COMPLETE) {
+ if (sizeof(buf) > len + status_string.length) {
+ memcpy(buf + len, status_string.value,
+ status_string.length);
+ len += status_string.length;
+ }
+ gss_release_buffer(&min_stat, &status_string);
+ break;
+ }
+ gss_release_buffer(&min_stat, &status_string);
+ }
+ debugs(11, 5, HERE << function << "failed: " << buf);
+ return (1);
+ }
+ return (0);
}
- void krb5_cleanup()
- {
- debugs(11, 5, HERE << "Cleanup kerberos context");
- if (kparam.context) {
- if (kparam.cc)
- krb5_cc_destroy(kparam.context, kparam.cc);
- kparam.cc = NULL;
- krb5_free_context(kparam.context);
- kparam.context = NULL;
- }
+ void krb5_cleanup() {
+ debugs(11, 5, HERE << "Cleanup kerberos context");
+ if (kparam.context) {
+ if (kparam.cc)
+ krb5_cc_destroy(kparam.context, kparam.cc);
+ kparam.cc = NULL;
+ krb5_free_context(kparam.context);
+ kparam.context = NULL;
+ }
}
- int krb5_create_cache(char *kf, char *pn)
- {
+ int krb5_create_cache(char *kf, char *pn) {
#define KT_PATH_MAX 256
#define MAX_RENEW_TIME "365d"
#define DEFAULT_SKEW (krb5_deltat) 600
- static char *keytab_filename = NULL, *principal_name = NULL;
- static krb5_keytab keytab = 0;
- static krb5_keytab_entry entry;
- static krb5_kt_cursor cursor;
- static krb5_creds *creds = NULL;
+ static char *keytab_filename = NULL, *principal_name = NULL;
+ static krb5_keytab keytab = 0;
+ static krb5_keytab_entry entry;
+ static krb5_kt_cursor cursor;
+ static krb5_creds *creds = NULL;
#if HAVE_HEIMDAL_KERBEROS
- static krb5_creds creds2;
+ static krb5_creds creds2;
#endif
- static krb5_principal principal = NULL;
- static krb5_deltat skew;
-
- krb5_get_init_creds_opt options;
- krb5_error_code code = 0;
- krb5_deltat rlife;
-#if HAVE_PROFILE_H && HAVE_KRB5_GET_PROFILE && HAVE_PROFILE_GET_INTEGER && HAVE_PROFILE_RELEASE
- profile_t profile;
+ static krb5_principal principal = NULL;
+ static krb5_deltat skew;
+
+ krb5_get_init_creds_opt options;
+ krb5_error_code code = 0;
+ krb5_deltat rlife;
+#if HAVE_PROFILE_H && HAVE_KRB5_GET_PROFILE && HAVE_PROFILE_GET_INTEGER && HAVE_PROFILE_RELEASE
+ profile_t profile;
#endif
#if HAVE_HEIMDAL_KERBEROS
- krb5_kdc_flags flags;
- krb5_realm *client_realm;
+ krb5_kdc_flags flags;
+ krb5_realm *client_realm;
#endif
- char *mem_cache;
-
- restart:
-/*
- * Check if credentials need to be renewed
- */
- if (creds &&
- (creds->times.endtime - time(0) > skew) &&
- (creds->times.renew_till - time(0) > 2 * skew)) {
- if (creds->times.endtime - time(0) < 2 * skew) {
+ char *mem_cache;
+
+restart:
+ /*
+ * Check if credentials need to be renewed
+ */
+ if (creds &&
+ (creds->times.endtime - time(0) > skew) &&
+ (creds->times.renew_till - time(0) > 2 * skew)) {
+ if (creds->times.endtime - time(0) < 2 * skew) {
#if !HAVE_HEIMDAL_KERBEROS
- /* renew ticket */
- code =
- krb5_get_renewed_creds(kparam.context, creds, principal,
- kparam.cc, NULL);
+ /* renew ticket */
+ code =
+ krb5_get_renewed_creds(kparam.context, creds, principal,
+ kparam.cc, NULL);
#else
- /* renew ticket */
- flags.i = 0;
- flags.b.renewable = flags.b.renew = 1;
-
- code =
- krb5_cc_get_principal(kparam.context, kparam.cc,
- &creds2.client);
- if (code) {
- debugs(11, 5,
- HERE <<
- "Error while getting principal from credential cache : "
- << error_message(code));
- return (1);
- }
- client_realm = krb5_princ_realm(kparam.context, creds2.client);
- code =
- krb5_make_principal(kparam.context, &creds2.server,
- *client_realm, KRB5_TGS_NAME, *client_realm, NULL);
- if (code) {
- debugs(11, 5,
- HERE << "Error while getting krbtgt principal : " <<
- error_message(code));
- return (1);
- }
- code =
- krb5_get_kdc_cred(kparam.context, kparam.cc, flags, NULL,
- NULL, &creds2, &creds);
- krb5_free_creds(kparam.context, &creds2);
+ /* renew ticket */
+ flags.i = 0;
+ flags.b.renewable = flags.b.renew = 1;
+
+ code =
+ krb5_cc_get_principal(kparam.context, kparam.cc,
+ &creds2.client);
+ if (code) {
+ debugs(11, 5,
+ HERE <<
+ "Error while getting principal from credential cache : "
+ << error_message(code));
+ return (1);
+ }
+ client_realm = krb5_princ_realm(kparam.context, creds2.client);
+ code =
+ krb5_make_principal(kparam.context, &creds2.server,
+ *client_realm, KRB5_TGS_NAME, *client_realm, NULL);
+ if (code) {
+ debugs(11, 5,
+ HERE << "Error while getting krbtgt principal : " <<
+ error_message(code));
+ return (1);
+ }
+ code =
+ krb5_get_kdc_cred(kparam.context, kparam.cc, flags, NULL,
+ NULL, &creds2, &creds);
+ krb5_free_creds(kparam.context, &creds2);
#endif
- if (code) {
- if (code == KRB5KRB_AP_ERR_TKT_EXPIRED) {
- krb5_free_creds(kparam.context, creds);
- creds = NULL;
- /* this can happen because of clock skew */
- goto restart;
- }
- debugs(11, 5,
- HERE << "Error while get credentials : " <<
- error_message(code));
- return (1);
- }
- }
- } else {
- /* reinit */
- if (!kparam.context) {
- code = krb5_init_context(&kparam.context);
- if (code) {
- debugs(11, 5,
- HERE << "Error while initialising Kerberos library : "
- << error_message(code));
- return (1);
- }
- }
-#if HAVE_PROFILE_H && HAVE_KRB5_GET_PROFILE && HAVE_PROFILE_GET_INTEGER && HAVE_PROFILE_RELEASE
- code = krb5_get_profile(kparam.context, &profile);
- if (code) {
- if (profile)
- profile_release(profile);
- debugs(11, 5,
- HERE << "Error while getting profile : " <<
- error_message(code));
- return (1);
- }
- code =
- profile_get_integer(profile, "libdefaults", "clockskew", 0,
- 5 * 60, &skew);
- if (profile)
- profile_release(profile);
- if (code) {
- debugs(11, 5,
- HERE << "Error while getting clockskew : " <<
- error_message(code));
- return (1);
- }
+ if (code) {
+ if (code == KRB5KRB_AP_ERR_TKT_EXPIRED) {
+ krb5_free_creds(kparam.context, creds);
+ creds = NULL;
+ /* this can happen because of clock skew */
+ goto restart;
+ }
+ debugs(11, 5,
+ HERE << "Error while get credentials : " <<
+ error_message(code));
+ return (1);
+ }
+ }
+ } else {
+ /* reinit */
+ if (!kparam.context) {
+ code = krb5_init_context(&kparam.context);
+ if (code) {
+ debugs(11, 5,
+ HERE << "Error while initialising Kerberos library : "
+ << error_message(code));
+ return (1);
+ }
+ }
+#if HAVE_PROFILE_H && HAVE_KRB5_GET_PROFILE && HAVE_PROFILE_GET_INTEGER && HAVE_PROFILE_RELEASE
+ code = krb5_get_profile(kparam.context, &profile);
+ if (code) {
+ if (profile)
+ profile_release(profile);
+ debugs(11, 5,
+ HERE << "Error while getting profile : " <<
+ error_message(code));
+ return (1);
+ }
+ code =
+ profile_get_integer(profile, "libdefaults", "clockskew", 0,
+ 5 * 60, &skew);
+ if (profile)
+ profile_release(profile);
+ if (code) {
+ debugs(11, 5,
+ HERE << "Error while getting clockskew : " <<
+ error_message(code));
+ return (1);
+ }
#elif HAVE_KRB5_GET_MAX_TIME_SKEW && HAVE_HEIMDAL_KERBEROS
- skew = krb5_get_max_time_skew(kparam.context);
+ skew = krb5_get_max_time_skew(kparam.context);
#elif HAVE_MAX_SKEW_IN_KRB5_CONTEXT && HAVE_HEIMDAL_KERBEROS
- skew = kparam.context->max_skew;
+ skew = kparam.context->max_skew;
#else
- skew = DEFAULT_SKEW;
+ skew = DEFAULT_SKEW;
#endif
- if (!kf) {
- char buf[KT_PATH_MAX], *p;
-
- krb5_kt_default_name(kparam.context, buf, KT_PATH_MAX);
- p = strchr(buf, ':');
- if (p)
- p++;
- if (keytab_filename)
- xfree(keytab_filename);
- keytab_filename = xstrdup(p ? p : buf);
- } else {
- keytab_filename = xstrdup(kf);
- }
-
- code = krb5_kt_resolve(kparam.context, keytab_filename, &keytab);
- if (code) {
- debugs(11, 5,
- HERE << "Error while resolving keytab filename " <<
- keytab_filename << " : " << error_message(code));
- return (1);
- }
-
- if (!pn) {
- code = krb5_kt_start_seq_get(kparam.context, keytab, &cursor);
- if (code) {
- debugs(11, 5,
- HERE << "Error while starting keytab scan : " <<
- error_message(code));
- return (1);
- }
- code =
- krb5_kt_next_entry(kparam.context, keytab, &entry, &cursor);
- krb5_copy_principal(kparam.context, entry.principal,
- &principal);
- if (code && code != KRB5_KT_END) {
- debugs(11, 5,
- HERE << "Error while scanning keytab : " <<
- error_message(code));
- return (1);
- }
-
- code = krb5_kt_end_seq_get(kparam.context, keytab, &cursor);
- if (code) {
- debugs(11, 5,
- HERE << "Error while ending keytab scan : " <<
- error_message(code));
- return (1);
- }
+ if (!kf) {
+ char buf[KT_PATH_MAX], *p;
+
+ krb5_kt_default_name(kparam.context, buf, KT_PATH_MAX);
+ p = strchr(buf, ':');
+ if (p)
+ p++;
+ if (keytab_filename)
+ xfree(keytab_filename);
+ keytab_filename = xstrdup(p ? p : buf);
+ } else {
+ keytab_filename = xstrdup(kf);
+ }
+
+ code = krb5_kt_resolve(kparam.context, keytab_filename, &keytab);
+ if (code) {
+ debugs(11, 5,
+ HERE << "Error while resolving keytab filename " <<
+ keytab_filename << " : " << error_message(code));
+ return (1);
+ }
+
+ if (!pn) {
+ code = krb5_kt_start_seq_get(kparam.context, keytab, &cursor);
+ if (code) {
+ debugs(11, 5,
+ HERE << "Error while starting keytab scan : " <<
+ error_message(code));
+ return (1);
+ }
+ code =
+ krb5_kt_next_entry(kparam.context, keytab, &entry, &cursor);
+ krb5_copy_principal(kparam.context, entry.principal,
+ &principal);
+ if (code && code != KRB5_KT_END) {
+ debugs(11, 5,
+ HERE << "Error while scanning keytab : " <<
+ error_message(code));
+ return (1);
+ }
+
+ code = krb5_kt_end_seq_get(kparam.context, keytab, &cursor);
+ if (code) {
+ debugs(11, 5,
+ HERE << "Error while ending keytab scan : " <<
+ error_message(code));
+ return (1);
+ }
#if HAVE_HEIMDAL_KERBEROS || ( HAVE_KRB5_KT_FREE_ENTRY && HAVE_DECL_KRB5_KT_FREE_ENTRY)
- code = krb5_kt_free_entry(kparam.context, &entry);
+ code = krb5_kt_free_entry(kparam.context, &entry);
#else
- code = krb5_free_keytab_entry_contents(kparam.context, &entry);
+ code = krb5_free_keytab_entry_contents(kparam.context, &entry);
#endif
- if (code) {
- debugs(11, 5,
- HERE << "Error while freeing keytab entry : " <<
- error_message(code));
- return (1);
- }
-
- } else {
- principal_name = xstrdup(pn);
- }
-
- if (!principal) {
- code =
- krb5_parse_name(kparam.context, principal_name, &principal);
- if (code) {
- debugs(11, 5,
- HERE << "Error while parsing principal name " <<
- principal_name << " : " << error_message(code));
- return (1);
- }
- }
-
- creds = (krb5_creds *) xmalloc(sizeof(*creds));
- memset(creds, 0, sizeof(*creds));
- krb5_get_init_creds_opt_init(&options);
- code = krb5_string_to_deltat((char *) MAX_RENEW_TIME, &rlife);
- if (code != 0 || rlife == 0) {
- debugs(11, 5,
- HERE << "Error bad lifetime value " << MAX_RENEW_TIME <<
- " : " << error_message(code));
- return (1);
- }
- krb5_get_init_creds_opt_set_renew_life(&options, rlife);
-
- code =
- krb5_get_init_creds_keytab(kparam.context, creds, principal,
- keytab, 0, NULL, &options);
- if (code) {
- debugs(11, 5,
- HERE <<
- "Error while initializing credentials from keytab : " <<
- error_message(code));
- return (1);
- }
+ if (code) {
+ debugs(11, 5,
+ HERE << "Error while freeing keytab entry : " <<
+ error_message(code));
+ return (1);
+ }
+
+ } else {
+ principal_name = xstrdup(pn);
+ }
+
+ if (!principal) {
+ code =
+ krb5_parse_name(kparam.context, principal_name, &principal);
+ if (code) {
+ debugs(11, 5,
+ HERE << "Error while parsing principal name " <<
+ principal_name << " : " << error_message(code));
+ return (1);
+ }
+ }
+
+ creds = (krb5_creds *) xmalloc(sizeof(*creds));
+ memset(creds, 0, sizeof(*creds));
+ krb5_get_init_creds_opt_init(&options);
+ code = krb5_string_to_deltat((char *) MAX_RENEW_TIME, &rlife);
+ if (code != 0 || rlife == 0) {
+ debugs(11, 5,
+ HERE << "Error bad lifetime value " << MAX_RENEW_TIME <<
+ " : " << error_message(code));
+ return (1);
+ }
+ krb5_get_init_creds_opt_set_renew_life(&options, rlife);
+
+ code =
+ krb5_get_init_creds_keytab(kparam.context, creds, principal,
+ keytab, 0, NULL, &options);
+ if (code) {
+ debugs(11, 5,
+ HERE <<
+ "Error while initializing credentials from keytab : " <<
+ error_message(code));
+ return (1);
+ }
#if !HAVE_KRB5_MEMORY_CACHE
- mem_cache =
- (char *) xmalloc(strlen("FILE:/tmp/peer_proxy_negotiate_auth_")
- + 16);
- snprintf(mem_cache,
- strlen("FILE:/tmp/peer_proxy_negotiate_auth_") + 16,
- "FILE:/tmp/peer_proxy_negotiate_auth_%d", (int) getpid());
+ mem_cache =
+ (char *) xmalloc(strlen("FILE:/tmp/peer_proxy_negotiate_auth_")
+ + 16);
+ snprintf(mem_cache,
+ strlen("FILE:/tmp/peer_proxy_negotiate_auth_") + 16,
+ "FILE:/tmp/peer_proxy_negotiate_auth_%d", (int) getpid());
#else
- mem_cache =
- (char *) xmalloc(strlen("MEMORY:peer_proxy_negotiate_auth_") +
- 16);
- snprintf(mem_cache,
- strlen("MEMORY:peer_proxy_negotiate_auth_") + 16,
- "MEMORY:peer_proxy_negotiate_auth_%d", (int) getpid());
+ mem_cache =
+ (char *) xmalloc(strlen("MEMORY:peer_proxy_negotiate_auth_") +
+ 16);
+ snprintf(mem_cache,
+ strlen("MEMORY:peer_proxy_negotiate_auth_") + 16,
+ "MEMORY:peer_proxy_negotiate_auth_%d", (int) getpid());
#endif
- setenv("KRB5CCNAME", mem_cache, 1);
- code = krb5_cc_resolve(kparam.context, mem_cache, &kparam.cc);
- if (mem_cache)
- xfree(mem_cache);
- if (code) {
- debugs(11, 5,
- HERE << "Error while resolving memory credential cache : "
- << error_message(code));
- return (1);
- }
- code = krb5_cc_initialize(kparam.context, kparam.cc, principal);
- if (code) {
- debugs(11, 5,
- HERE <<
- "Error while initializing memory credential cache : " <<
- error_message(code));
- return (1);
- }
- code = krb5_cc_store_cred(kparam.context, kparam.cc, creds);
- if (code) {
- debugs(11, 5,
- HERE << "Error while storing credentials : " <<
- error_message(code));
- return (1);
- }
-
- if (!creds->times.starttime)
- creds->times.starttime = creds->times.authtime;
- }
- return (0);
+ setenv("KRB5CCNAME", mem_cache, 1);
+ code = krb5_cc_resolve(kparam.context, mem_cache, &kparam.cc);
+ if (mem_cache)
+ xfree(mem_cache);
+ if (code) {
+ debugs(11, 5,
+ HERE << "Error while resolving memory credential cache : "
+ << error_message(code));
+ return (1);
+ }
+ code = krb5_cc_initialize(kparam.context, kparam.cc, principal);
+ if (code) {
+ debugs(11, 5,
+ HERE <<
+ "Error while initializing memory credential cache : " <<
+ error_message(code));
+ return (1);
+ }
+ code = krb5_cc_store_cred(kparam.context, kparam.cc, creds);
+ if (code) {
+ debugs(11, 5,
+ HERE << "Error while storing credentials : " <<
+ error_message(code));
+ return (1);
+ }
+
+ if (!creds->times.starttime)
+ creds->times.starttime = creds->times.authtime;
+ }
+ return (0);
}
-/*
- * peer_proxy_negotiate_auth gets a GSSAPI token for principal_name
- * and base64 encodes it.
- */
- char *peer_proxy_negotiate_auth(char *principal_name, char *proxy)
- {
- int rc = 0;
- OM_uint32 major_status, minor_status;
- gss_ctx_id_t gss_context = GSS_C_NO_CONTEXT;
- gss_name_t server_name = GSS_C_NO_NAME;
- gss_buffer_desc service = GSS_C_EMPTY_BUFFER;
- gss_buffer_desc input_token = GSS_C_EMPTY_BUFFER;
- gss_buffer_desc output_token = GSS_C_EMPTY_BUFFER;
- char *token = NULL;
-
- setbuf(stdout, NULL);
- setbuf(stdin, NULL);
-
- if (!proxy) {
- debugs(11, 5, HERE << "Error : No proxy server name");
- return NULL;
- }
-
- if (principal_name)
- debugs(11, 5,
- HERE << "Creating credential cache for " << principal_name);
- else
- debugs(11, 5, HERE << "Creating credential cache");
- rc = krb5_create_cache(NULL, principal_name);
- if (rc) {
- debugs(11, 5, HERE << "Error : Failed to create Kerberos cache");
- krb5_cleanup();
- return NULL;
- }
-
- service.value = (void *) xmalloc(strlen("HTTP") + strlen(proxy) + 2);
- snprintf((char *) service.value, strlen("HTTP") + strlen(proxy) + 2,
- "%s@%s", "HTTP", proxy);
- service.length = strlen((char *) service.value);
-
- debugs(11, 5, HERE << "Import gss name");
- major_status = gss_import_name(&minor_status, &service,
- gss_nt_service_name, &server_name);
-
- if (check_gss_err(major_status, minor_status, "gss_import_name()"))
- goto cleanup;
-
- debugs(11, 5, HERE << "Initialize gss security context");
- major_status = gss_init_sec_context(&minor_status,
- GSS_C_NO_CREDENTIAL,
- &gss_context,
- server_name,
- gss_mech_spnego,
- 0,
- 0,
- GSS_C_NO_CHANNEL_BINDINGS,
- &input_token, NULL, &output_token, NULL, NULL);
-
- if (check_gss_err(major_status, minor_status, "gss_init_sec_context()"))
- goto cleanup;
-
- debugs(11, 5, HERE << "Got token with length " << output_token.length);
- if (output_token.length) {
-
- token =
- (char *) base64_encode_bin((const char *) output_token.value,
- output_token.length);
- }
-
-
- cleanup:
- gss_delete_sec_context(&minor_status, &gss_context, NULL);
- gss_release_buffer(&minor_status, &service);
- gss_release_buffer(&minor_status, &input_token);
- gss_release_buffer(&minor_status, &output_token);
- gss_release_name(&minor_status, &server_name);
-
- return token;
+ /*
+ * peer_proxy_negotiate_auth gets a GSSAPI token for principal_name
+ * and base64 encodes it.
+ */
+ char *peer_proxy_negotiate_auth(char *principal_name, char *proxy) {
+ int rc = 0;
+ OM_uint32 major_status, minor_status;
+ gss_ctx_id_t gss_context = GSS_C_NO_CONTEXT;
+ gss_name_t server_name = GSS_C_NO_NAME;
+ gss_buffer_desc service = GSS_C_EMPTY_BUFFER;
+ gss_buffer_desc input_token = GSS_C_EMPTY_BUFFER;
+ gss_buffer_desc output_token = GSS_C_EMPTY_BUFFER;
+ char *token = NULL;
+
+ setbuf(stdout, NULL);
+ setbuf(stdin, NULL);
+
+ if (!proxy) {
+ debugs(11, 5, HERE << "Error : No proxy server name");
+ return NULL;
+ }
+
+ if (principal_name)
+ debugs(11, 5,
+ HERE << "Creating credential cache for " << principal_name);
+ else
+ debugs(11, 5, HERE << "Creating credential cache");
+ rc = krb5_create_cache(NULL, principal_name);
+ if (rc) {
+ debugs(11, 5, HERE << "Error : Failed to create Kerberos cache");
+ krb5_cleanup();
+ return NULL;
+ }
+
+ service.value = (void *) xmalloc(strlen("HTTP") + strlen(proxy) + 2);
+ snprintf((char *) service.value, strlen("HTTP") + strlen(proxy) + 2,
+ "%s@%s", "HTTP", proxy);
+ service.length = strlen((char *) service.value);
+
+ debugs(11, 5, HERE << "Import gss name");
+ major_status = gss_import_name(&minor_status, &service,
+ gss_nt_service_name, &server_name);
+
+ if (check_gss_err(major_status, minor_status, "gss_import_name()"))
+ goto cleanup;
+
+ debugs(11, 5, HERE << "Initialize gss security context");
+ major_status = gss_init_sec_context(&minor_status,
+ GSS_C_NO_CREDENTIAL,
+ &gss_context,
+ server_name,
+ gss_mech_spnego,
+ 0,
+ 0,
+ GSS_C_NO_CHANNEL_BINDINGS,
+ &input_token, NULL, &output_token, NULL, NULL);
+
+ if (check_gss_err(major_status, minor_status, "gss_init_sec_context()"))
+ goto cleanup;
+
+ debugs(11, 5, HERE << "Got token with length " << output_token.length);
+ if (output_token.length) {
+
+ token =
+ (char *) base64_encode_bin((const char *) output_token.value,
+ output_token.length);
+ }
+
+
+cleanup:
+ gss_delete_sec_context(&minor_status, &gss_context, NULL);
+ gss_release_buffer(&minor_status, &service);
+ gss_release_buffer(&minor_status, &input_token);
+ gss_release_buffer(&minor_status, &output_token);
+ gss_release_name(&minor_status, &server_name);
+
+ return token;
}
#ifdef __cplusplus
projects / thirdparty / squid.git / commitdiff
