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DEFINITIONS
This source file includes following definitions.
- destroy_context
- _gss_mechglue_thread
- _gss_mg_get_error
- _gss_mg_error
- gss_mg_collect_error
1 #include "mech/mech_locl.h"
2 #include "heim_threads.h"
3
4 RCSID("$Id$");
5
6 struct mg_thread_ctx {
7 gss_OID mech;
8 OM_uint32 maj_stat;
9 OM_uint32 min_stat;
10 gss_buffer_desc maj_error;
11 gss_buffer_desc min_error;
12 };
13
14 static HEIMDAL_MUTEX context_mutex = HEIMDAL_MUTEX_INITIALIZER;
15 static int created_key;
16 static HEIMDAL_thread_key context_key;
17
18
19 static void
20 destroy_context(void *ptr)
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21 {
22 struct mg_thread_ctx *mg = ptr;
23 OM_uint32 junk;
24
25 if (mg == NULL)
26 return;
27
28 gss_release_buffer(&junk, &mg->maj_error);
29 gss_release_buffer(&junk, &mg->min_error);
30 free(mg);
31 }
32
33
34 static struct mg_thread_ctx *
35 _gss_mechglue_thread(void)
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36 {
37 struct mg_thread_ctx *ctx;
38 int ret = 0;
39
40 HEIMDAL_MUTEX_lock(&context_mutex);
41
42 if (!created_key) {
43 HEIMDAL_key_create(&context_key, destroy_context, ret);
44 if (ret) {
45 HEIMDAL_MUTEX_unlock(&context_mutex);
46 return NULL;
47 }
48 created_key = 1;
49 }
50 HEIMDAL_MUTEX_unlock(&context_mutex);
51
52 ctx = HEIMDAL_getspecific(context_key);
53 if (ctx == NULL) {
54
55 ctx = calloc(1, sizeof(*ctx));
56 if (ctx == NULL)
57 return NULL;
58 HEIMDAL_setspecific(context_key, ctx, ret);
59 if (ret) {
60 free(ctx);
61 return NULL;
62 }
63 }
64 return ctx;
65 }
66
67 OM_uint32
68 _gss_mg_get_error(const gss_OID mech, OM_uint32 type,
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69 OM_uint32 value, gss_buffer_t string)
70 {
71 struct mg_thread_ctx *mg;
72
73 mg = _gss_mechglue_thread();
74 if (mg == NULL)
75 return GSS_S_BAD_STATUS;
76
77 #if 0
78 /*
79 * We cant check the mech here since a pseudo-mech might have
80 * called an lower layer and then the mech info is all broken
81 */
82 if (mech != NULL && gss_oid_equal(mg->mech, mech) == 0)
83 return GSS_S_BAD_STATUS;
84 #endif
85
86 switch (type) {
87 case GSS_C_GSS_CODE: {
88 if (value != mg->maj_stat || mg->maj_error.length == 0)
89 break;
90 string->value = malloc(mg->maj_error.length);
91 string->length = mg->maj_error.length;
92 memcpy(string->value, mg->maj_error.value, mg->maj_error.length);
93 return GSS_S_COMPLETE;
94 }
95 case GSS_C_MECH_CODE: {
96 if (value != mg->min_stat || mg->min_error.length == 0)
97 break;
98 string->value = malloc(mg->min_error.length);
99 string->length = mg->min_error.length;
100 memcpy(string->value, mg->min_error.value, mg->min_error.length);
101 return GSS_S_COMPLETE;
102 }
103 }
104 string->value = NULL;
105 string->length = 0;
106 return GSS_S_BAD_STATUS;
107 }
108
109 void
110 _gss_mg_error(gssapi_mech_interface m, OM_uint32 maj, OM_uint32 min)
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111 {
112 OM_uint32 major_status, minor_status;
113 OM_uint32 message_content;
114 struct mg_thread_ctx *mg;
115
116 /*
117 * Mechs without gss_display_status() does
118 * gss_mg_collect_error() by themself.
119 */
120 if (m->gm_display_status == NULL)
121 return ;
122
123 mg = _gss_mechglue_thread();
124 if (mg == NULL)
125 return;
126
127 gss_release_buffer(&minor_status, &mg->maj_error);
128 gss_release_buffer(&minor_status, &mg->min_error);
129
130 mg->mech = &m->gm_mech_oid;
131 mg->maj_stat = maj;
132 mg->min_stat = min;
133
134 major_status = m->gm_display_status(&minor_status,
135 maj,
136 GSS_C_GSS_CODE,
137 &m->gm_mech_oid,
138 &message_content,
139 &mg->maj_error);
140 if (GSS_ERROR(major_status)) {
141 mg->maj_error.value = NULL;
142 mg->maj_error.length = 0;
143 }
144 major_status = m->gm_display_status(&minor_status,
145 min,
146 GSS_C_MECH_CODE,
147 &m->gm_mech_oid,
148 &message_content,
149 &mg->min_error);
150 if (GSS_ERROR(major_status)) {
151 mg->min_error.value = NULL;
152 mg->min_error.length = 0;
153 }
154 }
155
156 void
157 gss_mg_collect_error(gss_OID mech, OM_uint32 maj, OM_uint32 min)
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158 {
159 gssapi_mech_interface m = __gss_get_mechanism(mech);
160 if (m == NULL)
161 return;
162 _gss_mg_error(m, maj, min);
163 }