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The C and C++ Include Header Files

/usr/include/ntirpc/rpc/gss_internal.h


$ cat -n /usr/include/ntirpc/rpc/gss_internal.h

     1	/*
     2	 * Copyright (c) 2012 Linux Box Corporation.
     3	 * All rights reserved.
     4	 *
     5	 * Redistribution and use in source and binary forms, with or without
     6	 * modification, are permitted provided that the following conditions
     7	 * are met:
     8	 * 1. Redistributions of source code must retain the above copyright
     9	 *    notice, this list of conditions and the following disclaimer.
    10	 * 2. Redistributions in binary form must reproduce the above copyright
    11	 *    notice, this list of conditions and the following disclaimer in the
    12	 *    documentation and/or other materials provided with the distribution.
    13	 *
    14	 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR `AS IS'' AND ANY EXPRESS OR
    15	 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
    16	 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
    17	 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
    18	 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
    19	 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
    20	 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
    21	 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
    22	 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
    23	 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
    24	 */
    25	
    26	#ifndef GSS_INTERNAL_H
    27	#define GSS_INTERNAL_H
    28	
    29	#include <stdint.h>
    30	#include <stdbool.h>
    31	#include <stdlib.h>
    32	#include <pthread.h>
    33	#include <reentrant.h>
    34	#include <sys/types.h>
    35	#include <rpc/rpc.h>
    36	#include <misc/rbtree_x.h>
    37	#include <misc/queue.h>
    38	#include <misc/abstract_atomic.h>
    39	#include <intrinsic.h>
    40	
    41	#ifdef HAVE_HEIMDAL
    42	#include <gssapi.h>
    43	#define gss_nt_service_name GSS_C_NT_HOSTBASED_SERVICE
    44	#else
    45	#include <gssapi/gssapi.h>
    46	#include <gssapi/gssapi_generic.h>
    47	#include <gssapi/gssapi_ext.h>
    48	#endif
    49	#include <rpc/auth_gss.h>
    50	
    51	extern SVCAUTH svc_auth_none;
    52	
    53	#define SVCAUTH_PRIVATE(auth) \
    54		((struct svc_rpc_gss_data *)(auth)->svc_ah_private)
    55	
    56	/*
    57	 * from mit-krb5-1.2.1 mechglue/mglueP.h:
    58	 * Array of context IDs typed by mechanism OID
    59	 */
    60	struct gss_union_ctx_id {
    61		gss_OID mech_type;
    62		gss_ctx_id_t internal_ctx_id;
    63	};
    64	
    65	typedef struct gss_union_ctx_id gss_union_ctx_id_desc;
    66	typedef gss_union_ctx_id_desc *gss_union_ctx_id_t;
    67	
    68	#define SVC_RPC_GSS_FLAG_NONE    0x0000
    69	#define SVC_RPC_GSS_FLAG_MSPAC   0x0001
    70	
    71	struct svc_rpc_gss_data {
    72		struct opr_rbtree_node node_k;
    73		TAILQ_ENTRY(svc_rpc_gss_data) lru_q;
    74		mutex_t lock;
    75		uint32_t flags;
    76		uint32_t refcnt;
    77		uint32_t gen;
    78		struct {
    79			uint32_t k;
    80		} hk;
    81		bool established;
    82		gss_ctx_id_t ctx;	/* context id */
    83		struct rpc_gss_sec sec;	/* security triple */
    84		gss_buffer_desc cname;	/* GSS client name */
    85		u_int seq;
    86		u_int win;
    87		u_int seqlast;
    88		uint32_t seqmask;
    89		gss_name_t client_name;
    90		gss_buffer_desc checksum;
    91		struct {
    92			/* extended krb5 ticket ("pac") data */
    93			gss_buffer_desc ms_pac;
    94		} pac;
    95		SVCAUTH *auth;
    96		uint32_t endtime;
    97	};
    98	
    99	bool svcauth_gss_destroy(SVCAUTH *auth);
   100	
   101	static inline struct
   102	svc_rpc_gss_data *alloc_svc_rpc_gss_data(void)
   103	{
   104		struct svc_rpc_gss_data *gd =
   105			(struct svc_rpc_gss_data *)
   106			mem_zalloc(sizeof(struct svc_rpc_gss_data));
   107	
   108		mutex_init(&gd->lock, NULL);
   109		TAILQ_INIT_ENTRY(gd, lru_q);
   110		gd->refcnt = 1;
   111		return (gd);
   112	}
   113	
   114	static inline void
   115	unref_svc_rpc_gss_data(struct svc_rpc_gss_data *gd)
   116	{
   117		mutex_lock(&gd->lock);
   118	
   119		/* if refcnt is 0, gd is not reachable */
   120		if (unlikely(atomic_dec_uint32_t(&gd->refcnt) == 0)) {
   121			svcauth_gss_destroy(gd->auth);
   122			/* gd was unlocked and freed. */
   123			return;
   124		}
   125	
   126		mutex_unlock(&gd->lock);
   127	}
   128	
   129	struct svc_rpc_gss_data *authgss_ctx_hash_get(struct rpc_gss_cred *gc);
   130	bool authgss_ctx_hash_set(struct svc_rpc_gss_data *gd);
   131	bool authgss_ctx_hash_del(struct svc_rpc_gss_data *gd);
   132	
   133	bool svcauth_gss_acquire_cred(void);
   134	bool svcauth_gss_release_cred(void);
   135	bool svcauth_gss_import_name(char *service);
   136	bool svcauth_gss_set_svc_name(gss_name_t name);
   137	
   138	#endif				/* GSS_INTERNAL_H */