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32 #include "mod_auth_gssapi.h"
35 gss_log(const char *file, int line, int level, int status,
36 const request_rec *r, const char *fmt, ...)
42 vsnprintf(errstr, sizeof(errstr), fmt, ap);
45 ap_log_rerror(file, line, level | APLOG_NOERRNO, status, r, "%s", errstr);
49 cleanup_conn_ctx(void *data)
51 gss_conn_ctx ctx = (gss_conn_ctx) data;
52 OM_uint32 minor_status;
54 if (ctx && ctx->context != GSS_C_NO_CONTEXT)
55 gss_delete_sec_context(&minor_status, &ctx->context, GSS_C_NO_BUFFER);
61 gss_get_conn_ctx(request_rec *r)
64 gss_conn_ctx ctx = NULL;
66 snprintf(key, sizeof(key), "mod_auth_gssweb:conn_ctx");
67 apr_pool_userdata_get((void **)&ctx, key, r->connection->pool);
70 ctx = (gss_conn_ctx) apr_palloc(r->connection->pool, sizeof(*ctx));
73 ctx->context = GSS_C_NO_CONTEXT;
74 ctx->state = GSS_CTX_EMPTY;
76 apr_pool_userdata_set(ctx, key, cleanup_conn_ctx, r->connection->pool);
82 gss_config_dir_create(apr_pool_t *p, char *d)
84 gss_auth_config *conf;
86 conf = (gss_auth_config *) apr_pcalloc(p, sizeof(*conf));
92 get_gss_error(request_rec *r, OM_uint32 err_maj, OM_uint32 err_min, char *prefix)
94 OM_uint32 maj_stat, min_stat;
95 OM_uint32 msg_ctx = 0;
96 gss_buffer_desc status_string;
100 gss_log(APLOG_MARK, APLOG_DEBUG, 0, r,
101 "GSS-API major_status:%8.8x, minor_status:%8.8x",
104 err_msg = apr_pstrdup(r->pool, prefix);
106 maj_stat = gss_display_status (&min_stat,
112 if (!GSS_ERROR(maj_stat)) {
113 err_msg = apr_pstrcat(r->pool, err_msg,
114 ": ", (char*) status_string.value, NULL);
115 gss_release_buffer(&min_stat, &status_string);
118 } while (!GSS_ERROR(maj_stat) && msg_ctx != 0);
121 err_msg = apr_pstrcat(r->pool, err_msg, " (", NULL);
124 maj_stat = gss_display_status (&min_stat,
130 if (!GSS_ERROR(maj_stat)) {
131 err_msg = apr_pstrcat(r->pool, err_msg,
132 (first_pass) ? "" : ", ",
133 (char *) status_string.value,
135 gss_release_buffer(&min_stat, &status_string);
138 } while (!GSS_ERROR(maj_stat) && msg_ctx != 0);
139 err_msg = apr_pstrcat(r->pool, err_msg, ")", NULL);
145 get_gss_creds(request_rec *r,
146 gss_auth_config *conf,
147 gss_cred_id_t *server_creds)
149 gss_buffer_desc token = GSS_C_EMPTY_BUFFER;
150 OM_uint32 major_status, minor_status, minor_status2;
151 gss_name_t server_name = GSS_C_NO_NAME;
153 int have_server_princ;
155 if (conf->service_name && strcmp(conf->service_name, "Any") == 0) {
156 *server_creds = GSS_C_NO_CREDENTIAL;
160 have_server_princ = conf->service_name && strchr(conf->service_name, '/') != NULL;
161 if (have_server_princ)
162 strncpy(buf, conf->service_name, sizeof(buf));
164 snprintf(buf, sizeof(buf), "%s@%s",
165 (conf->service_name) ? conf->service_name : SERVICE_NAME,
166 ap_get_server_name(r));
169 token.length = strlen(buf) + 1;
171 major_status = gss_import_name(&minor_status, &token,
172 (have_server_princ) ? (gss_OID) GSS_KRB5_NT_PRINCIPAL_NAME : (gss_OID) GSS_C_NT_HOSTBASED_SERVICE,
174 memset(&token, 0, sizeof(token));
175 if (GSS_ERROR(major_status)) {
176 gss_log(APLOG_MARK, APLOG_ERR, 0, r,
177 "%s", get_gss_error(r, major_status, minor_status,
178 "gss_import_name() failed"));
179 return HTTP_INTERNAL_SERVER_ERROR;
182 major_status = gss_display_name(&minor_status, server_name, &token, NULL);
183 if (GSS_ERROR(major_status)) {
184 /* Perhaps we could just ignore this error but it's safer to give up now,
186 gss_log(APLOG_MARK, APLOG_ERR, 0, r,
187 "%s", get_gss_error(r, major_status, minor_status,
188 "gss_display_name() failed"));
189 return HTTP_INTERNAL_SERVER_ERROR;
192 gss_log(APLOG_MARK, APLOG_DEBUG, 0, r, "Acquiring creds for %s", token.value);
193 gss_release_buffer(&minor_status, &token);
195 major_status = gss_acquire_cred(&minor_status, server_name, GSS_C_INDEFINITE,
196 GSS_C_NO_OID_SET, GSS_C_ACCEPT,
197 server_creds, NULL, NULL);
198 gss_release_name(&minor_status2, &server_name);
199 if (GSS_ERROR(major_status)) {
200 gss_log(APLOG_MARK, APLOG_ERR, 0, r,
201 "%s", get_gss_error(r, major_status, minor_status,
202 "Failed to load GSS-API credentials"));
203 return HTTP_INTERNAL_SERVER_ERROR;
210 cmp_gss_type(gss_buffer_t token, gss_OID oid)
215 if (token->length == 0)
216 return GSS_S_DEFECTIVE_TOKEN;
220 return GSS_S_DEFECTIVE_TOKEN;
223 if ((len & 0x7f) > 4)
224 return GSS_S_DEFECTIVE_TOKEN;
228 return GSS_S_DEFECTIVE_TOKEN;
230 if (((OM_uint32) *p++) != oid->length)
231 return GSS_S_DEFECTIVE_TOKEN;
233 return memcmp(p, oid->elements, oid->length);