/usr/include/ntirpc/rpc/gss_internal.h is in libntirpc-dev 1.3.1-1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 | /*
* Copyright (c) 2012 Linux Box Corporation.
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR `AS IS'' AND ANY EXPRESS OR
* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#ifndef GSS_INTERNAL_H
#define GSS_INTERNAL_H
#include <stdint.h>
#include <stdbool.h>
#include <stdlib.h>
#include <pthread.h>
#include <reentrant.h>
#include <sys/types.h>
#include <rpc/rpc.h>
#include <misc/rbtree_x.h>
#include <misc/queue.h>
#include <misc/abstract_atomic.h>
#include <intrinsic.h>
#ifdef HAVE_HEIMDAL
#include <gssapi.h>
#define gss_nt_service_name GSS_C_NT_HOSTBASED_SERVICE
#else
#include <gssapi/gssapi.h>
#include <gssapi/gssapi_generic.h>
#include <gssapi/gssapi_ext.h>
#endif
#include <rpc/auth_gss.h>
extern SVCAUTH svc_auth_none;
#define SVCAUTH_PRIVATE(auth) \
((struct svc_rpc_gss_data *)(auth)->svc_ah_private)
/*
* from mit-krb5-1.2.1 mechglue/mglueP.h:
* Array of context IDs typed by mechanism OID
*/
struct gss_union_ctx_id {
gss_OID mech_type;
gss_ctx_id_t internal_ctx_id;
};
typedef struct gss_union_ctx_id gss_union_ctx_id_desc;
typedef gss_union_ctx_id_desc *gss_union_ctx_id_t;
#define SVC_RPC_GSS_FLAG_NONE 0x0000
#define SVC_RPC_GSS_FLAG_MSPAC 0x0001
#define SVC_RPC_GSS_FLAG_LOCKED 0x0002
struct svc_rpc_gss_data {
struct opr_rbtree_node node_k;
TAILQ_ENTRY(svc_rpc_gss_data) lru_q;
mutex_t lock;
uint32_t flags;
uint32_t refcnt;
uint32_t gen;
struct {
uint32_t k;
} hk;
bool established;
gss_ctx_id_t ctx; /* context id */
struct rpc_gss_sec sec; /* security triple */
gss_buffer_desc cname; /* GSS client name */
u_int seq;
u_int win;
u_int seqlast;
uint32_t seqmask;
gss_name_t client_name;
gss_buffer_desc checksum;
struct {
/* extended krb5 ticket ("pac") data */
gss_buffer_desc ms_pac;
} pac;
SVCAUTH *auth;
uint32_t endtime;
};
bool svcauth_gss_destroy(SVCAUTH *auth);
static inline struct
svc_rpc_gss_data *alloc_svc_rpc_gss_data(void)
{
struct svc_rpc_gss_data *gd =
(struct svc_rpc_gss_data *)
mem_zalloc(sizeof(struct svc_rpc_gss_data));
mutex_init(&gd->lock, NULL);
TAILQ_INIT_ENTRY(gd, lru_q);
gd->refcnt = 1;
return (gd);
}
static inline void
unref_svc_rpc_gss_data(struct svc_rpc_gss_data *gd,
uint32_t flags)
{
u_int refcnt;
bool gd_locked = flags & SVC_RPC_GSS_FLAG_LOCKED;
refcnt = atomic_dec_uint32_t(&gd->refcnt);
/* if refcnt is 0, gd is not reachable */
if (unlikely(refcnt == 0)) {
if (!gd_locked) {
mutex_lock(&gd->lock);
gd_locked = true;
if (likely(refcnt == 0)) {
mutex_unlock(&gd->lock);
/* XXX disposes gd */
svcauth_gss_destroy(gd->auth);
return;
}
}
}
if (gd_locked)
mutex_unlock(&gd->lock);
}
void authgss_hash_init();
struct svc_rpc_gss_data *authgss_ctx_hash_get(struct rpc_gss_cred *gc);
bool authgss_ctx_hash_set(struct svc_rpc_gss_data *gd);
bool authgss_ctx_hash_del(struct svc_rpc_gss_data *gd);
bool svcauth_gss_acquire_cred(void);
bool svcauth_gss_release_cred(void);
bool svcauth_gss_import_name(char *service);
bool svcauth_gss_set_svc_name(gss_name_t name);
#endif /* GSS_INTERNAL_H */
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