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344 lines
12 KiB
344 lines
12 KiB
diff --git a/src/kadmin/server/kadm_rpc_svc.c b/src/kadmin/server/kadm_rpc_svc.c
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index 3837931..f4d2a7c 100644
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--- a/src/kadmin/server/kadm_rpc_svc.c
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+++ b/src/kadmin/server/kadm_rpc_svc.c
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@@ -4,7 +4,7 @@
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*
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*/
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-#include <k5-platform.h>
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+#include <k5-int.h>
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#include <gssrpc/rpc.h>
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#include <gssapi/gssapi_krb5.h> /* for gss_nt_krb5_name */
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#include <syslog.h>
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@@ -296,14 +296,8 @@ check_rpcsec_auth(struct svc_req *rqstp)
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c1 = krb5_princ_component(kctx, princ, 0);
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c2 = krb5_princ_component(kctx, princ, 1);
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realm = krb5_princ_realm(kctx, princ);
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- if (strncmp(handle->params.realm, realm->data, realm->length) == 0
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- && strncmp("kadmin", c1->data, c1->length) == 0) {
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-
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- if (strncmp("history", c2->data, c2->length) == 0)
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- goto fail_princ;
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- else
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- success = 1;
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- }
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+ success = data_eq_string(*realm, handle->params.realm) &&
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+ data_eq_string(*c1, "kadmin") && !data_eq_string(*c2, "history");
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fail_princ:
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if (!success) {
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diff --git a/src/lib/gssapi/krb5/context_time.c b/src/lib/gssapi/krb5/context_time.c
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index b3d1db0..a18cfb0 100644
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--- a/src/lib/gssapi/krb5/context_time.c
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+++ b/src/lib/gssapi/krb5/context_time.c
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@@ -40,7 +40,7 @@ krb5_gss_context_time(minor_status, context_handle, time_rec)
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ctx = (krb5_gss_ctx_id_rec *) context_handle;
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- if (! ctx->established) {
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+ if (ctx->terminated || !ctx->established) {
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*minor_status = KG_CTX_INCOMPLETE;
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return(GSS_S_NO_CONTEXT);
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}
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diff --git a/src/lib/gssapi/krb5/export_sec_context.c b/src/lib/gssapi/krb5/export_sec_context.c
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index 18a3a34..1b3de68 100644
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--- a/src/lib/gssapi/krb5/export_sec_context.c
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+++ b/src/lib/gssapi/krb5/export_sec_context.c
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@@ -45,6 +45,11 @@ krb5_gss_export_sec_context(minor_status, context_handle, interprocess_token)
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*minor_status = 0;
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ctx = (krb5_gss_ctx_id_t) *context_handle;
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+ if (ctx->terminated) {
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+ *minor_status = KG_CTX_INCOMPLETE;
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+ return (GSS_S_NO_CONTEXT);
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+ }
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+
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context = ctx->k5_context;
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kret = krb5_gss_ser_init(context);
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if (kret)
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diff --git a/src/lib/gssapi/krb5/gssapiP_krb5.h b/src/lib/gssapi/krb5/gssapiP_krb5.h
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index 7e807cc..a0e8625 100644
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--- a/src/lib/gssapi/krb5/gssapiP_krb5.h
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+++ b/src/lib/gssapi/krb5/gssapiP_krb5.h
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@@ -206,6 +206,7 @@ typedef struct _krb5_gss_ctx_id_rec {
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unsigned int established : 1;
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unsigned int have_acceptor_subkey : 1;
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unsigned int seed_init : 1; /* XXX tested but never actually set */
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+ unsigned int terminated : 1;
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OM_uint32 gss_flags;
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unsigned char seed[16];
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krb5_gss_name_t here;
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diff --git a/src/lib/gssapi/krb5/gssapi_krb5.c b/src/lib/gssapi/krb5/gssapi_krb5.c
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index 6456b23..77b7fff 100644
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--- a/src/lib/gssapi/krb5/gssapi_krb5.c
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+++ b/src/lib/gssapi/krb5/gssapi_krb5.c
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@@ -369,7 +369,7 @@ krb5_gss_inquire_sec_context_by_oid (OM_uint32 *minor_status,
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ctx = (krb5_gss_ctx_id_rec *) context_handle;
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- if (!ctx->established)
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+ if (ctx->terminated || !ctx->established)
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return GSS_S_NO_CONTEXT;
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for (i = 0; i < sizeof(krb5_gss_inquire_sec_context_by_oid_ops)/
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diff --git a/src/lib/gssapi/krb5/inq_context.c b/src/lib/gssapi/krb5/inq_context.c
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index eacb0fd..096df2a 100644
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--- a/src/lib/gssapi/krb5/inq_context.c
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+++ b/src/lib/gssapi/krb5/inq_context.c
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@@ -105,7 +105,7 @@ krb5_gss_inquire_context(minor_status, context_handle, initiator_name,
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ctx = (krb5_gss_ctx_id_rec *) context_handle;
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- if (! ctx->established) {
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+ if (ctx->terminated || !ctx->established) {
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*minor_status = KG_CTX_INCOMPLETE;
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return(GSS_S_NO_CONTEXT);
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}
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diff --git a/src/lib/gssapi/krb5/k5seal.c b/src/lib/gssapi/krb5/k5seal.c
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index 7665cba..f1c74dd 100644
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--- a/src/lib/gssapi/krb5/k5seal.c
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+++ b/src/lib/gssapi/krb5/k5seal.c
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@@ -342,7 +342,7 @@ kg_seal(minor_status, context_handle, conf_req_flag, qop_req,
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ctx = (krb5_gss_ctx_id_rec *) context_handle;
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- if (! ctx->established) {
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+ if (ctx->terminated || !ctx->established) {
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*minor_status = KG_CTX_INCOMPLETE;
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return(GSS_S_NO_CONTEXT);
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}
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diff --git a/src/lib/gssapi/krb5/k5sealiov.c b/src/lib/gssapi/krb5/k5sealiov.c
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index a129670..b53e348 100644
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--- a/src/lib/gssapi/krb5/k5sealiov.c
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+++ b/src/lib/gssapi/krb5/k5sealiov.c
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@@ -281,7 +281,7 @@ kg_seal_iov(OM_uint32 *minor_status,
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}
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ctx = (krb5_gss_ctx_id_rec *)context_handle;
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- if (!ctx->established) {
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+ if (ctx->terminated || !ctx->established) {
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*minor_status = KG_CTX_INCOMPLETE;
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return GSS_S_NO_CONTEXT;
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}
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diff --git a/src/lib/gssapi/krb5/k5unseal.c b/src/lib/gssapi/krb5/k5unseal.c
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index 0573958..673c883 100644
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--- a/src/lib/gssapi/krb5/k5unseal.c
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+++ b/src/lib/gssapi/krb5/k5unseal.c
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@@ -492,7 +492,7 @@ kg_unseal(minor_status, context_handle, input_token_buffer,
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ctx = (krb5_gss_ctx_id_rec *) context_handle;
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- if (! ctx->established) {
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+ if (ctx->terminated || !ctx->established) {
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*minor_status = KG_CTX_INCOMPLETE;
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return(GSS_S_NO_CONTEXT);
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}
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diff --git a/src/lib/gssapi/krb5/k5unsealiov.c b/src/lib/gssapi/krb5/k5unsealiov.c
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index f34d802..8b67042 100644
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--- a/src/lib/gssapi/krb5/k5unsealiov.c
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+++ b/src/lib/gssapi/krb5/k5unsealiov.c
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@@ -625,7 +625,7 @@ kg_unseal_iov(OM_uint32 *minor_status,
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OM_uint32 code;
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ctx = (krb5_gss_ctx_id_rec *)context_handle;
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- if (!ctx->established) {
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+ if (ctx->terminated || !ctx->established) {
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*minor_status = KG_CTX_INCOMPLETE;
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return GSS_S_NO_CONTEXT;
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}
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diff --git a/src/lib/gssapi/krb5/lucid_context.c b/src/lib/gssapi/krb5/lucid_context.c
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index 85df7fd..449e71f 100644
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--- a/src/lib/gssapi/krb5/lucid_context.c
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+++ b/src/lib/gssapi/krb5/lucid_context.c
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@@ -75,6 +75,11 @@ gss_krb5int_export_lucid_sec_context(
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*minor_status = 0;
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*data_set = GSS_C_NO_BUFFER_SET;
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+ if (ctx->terminated || !ctx->established) {
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+ *minor_status = KG_CTX_INCOMPLETE;
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+ return GSS_S_NO_CONTEXT;
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+ }
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+
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retval = generic_gss_oid_decompose(minor_status,
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GSS_KRB5_EXPORT_LUCID_SEC_CONTEXT_OID,
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GSS_KRB5_EXPORT_LUCID_SEC_CONTEXT_OID_LENGTH,
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diff --git a/src/lib/gssapi/krb5/prf.c b/src/lib/gssapi/krb5/prf.c
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index e19291f..e897074 100644
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--- a/src/lib/gssapi/krb5/prf.c
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+++ b/src/lib/gssapi/krb5/prf.c
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@@ -58,6 +58,10 @@ krb5_gss_pseudo_random(OM_uint32 *minor_status,
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ns.data = NULL;
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ctx = (krb5_gss_ctx_id_t)context;
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+ if (ctx->terminated || !ctx->established) {
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+ *minor_status = KG_CTX_INCOMPLETE;
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+ return GSS_S_NO_CONTEXT;
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+ }
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switch (prf_key) {
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case GSS_C_PRF_KEY_FULL:
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diff --git a/src/lib/gssapi/krb5/process_context_token.c b/src/lib/gssapi/krb5/process_context_token.c
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index ae33180..a672f48 100644
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--- a/src/lib/gssapi/krb5/process_context_token.c
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+++ b/src/lib/gssapi/krb5/process_context_token.c
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@@ -39,11 +39,18 @@ krb5_gss_process_context_token(minor_status, context_handle,
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ctx = (krb5_gss_ctx_id_t) context_handle;
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- if (! ctx->established) {
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+ if (ctx->terminated || !ctx->established) {
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*minor_status = KG_CTX_INCOMPLETE;
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return(GSS_S_NO_CONTEXT);
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}
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+ /* We only support context deletion tokens for now, and RFC 4121 does not
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+ * define a context deletion token. */
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+ if (ctx->proto) {
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+ *minor_status = 0;
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+ return(GSS_S_DEFECTIVE_TOKEN);
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+ }
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+
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/* "unseal" the token */
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if (GSS_ERROR(majerr = kg_unseal(minor_status, context_handle,
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@@ -52,8 +59,8 @@ krb5_gss_process_context_token(minor_status, context_handle,
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KG_TOK_DEL_CTX)))
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return(majerr);
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- /* that's it. delete the context */
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-
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- return(krb5_gss_delete_sec_context(minor_status, &context_handle,
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- GSS_C_NO_BUFFER));
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+ /* Mark the context as terminated, but do not delete it (as that would
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+ * leave the caller with a dangling context handle). */
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+ ctx->terminated = 1;
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+ return(GSS_S_COMPLETE);
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}
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diff --git a/src/lib/gssapi/krb5/wrap_size_limit.c b/src/lib/gssapi/krb5/wrap_size_limit.c
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index 7bc4221..ed5c599 100644
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--- a/src/lib/gssapi/krb5/wrap_size_limit.c
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+++ b/src/lib/gssapi/krb5/wrap_size_limit.c
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@@ -95,7 +95,7 @@ krb5_gss_wrap_size_limit(minor_status, context_handle, conf_req_flag,
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}
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ctx = (krb5_gss_ctx_id_rec *) context_handle;
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- if (! ctx->established) {
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+ if (ctx->terminated || !ctx->established) {
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*minor_status = KG_CTX_INCOMPLETE;
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return(GSS_S_NO_CONTEXT);
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}
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diff --git a/src/lib/gssapi/mechglue/mglueP.h b/src/lib/gssapi/mechglue/mglueP.h
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index e56b9c1..2b5145e 100644
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--- a/src/lib/gssapi/mechglue/mglueP.h
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+++ b/src/lib/gssapi/mechglue/mglueP.h
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@@ -25,7 +25,6 @@ do { \
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*/
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typedef struct gss_union_ctx_id_struct {
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struct gss_union_ctx_id_struct *loopback;
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- struct gss_union_ctx_id_struct *interposer;
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gss_OID mech_type;
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gss_ctx_id_t internal_ctx_id;
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} gss_union_ctx_id_desc, *gss_union_ctx_id_t;
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diff --git a/src/lib/kadm5/kadm_rpc_xdr.c b/src/lib/kadm5/kadm_rpc_xdr.c
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index 42ac783..975f94c 100644
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--- a/src/lib/kadm5/kadm_rpc_xdr.c
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+++ b/src/lib/kadm5/kadm_rpc_xdr.c
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@@ -320,6 +320,7 @@ bool_t xdr_krb5_tl_data(XDR *xdrs, krb5_tl_data **tl_data_head)
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free(tl);
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tl = tl2;
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}
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+ *tl_data_head = NULL;
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break;
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case XDR_ENCODE:
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@@ -1096,6 +1097,7 @@ xdr_krb5_principal(XDR *xdrs, krb5_principal *objp)
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case XDR_FREE:
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if(*objp != NULL)
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krb5_free_principal(context, *objp);
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+ *objp = NULL;
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break;
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}
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return TRUE;
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diff --git a/src/lib/rpc/auth_gssapi_misc.c b/src/lib/rpc/auth_gssapi_misc.c
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index 53bdb98..a05ea19 100644
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--- a/src/lib/rpc/auth_gssapi_misc.c
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+++ b/src/lib/rpc/auth_gssapi_misc.c
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@@ -322,7 +322,6 @@ bool_t auth_gssapi_unwrap_data(
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if (! (*xdr_func)(&temp_xdrs, xdr_ptr)) {
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PRINTF(("gssapi_unwrap_data: deserializing arguments failed\n"));
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gss_release_buffer(minor, &out_buf);
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- xdr_free(xdr_func, xdr_ptr);
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XDR_DESTROY(&temp_xdrs);
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return FALSE;
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}
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diff --git a/src/lib/rpc/svc_auth_gss.c b/src/lib/rpc/svc_auth_gss.c
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index 09a3534..b81c4a3 100644
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--- a/src/lib/rpc/svc_auth_gss.c
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+++ b/src/lib/rpc/svc_auth_gss.c
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@@ -65,16 +65,6 @@ extern const gss_OID_desc * const gss_mech_spkm3;
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extern SVCAUTH svc_auth_none;
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-/*
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- * from mit-krb5-1.2.1 mechglue/mglueP.h:
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- * Array of context IDs typed by mechanism OID
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- */
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-typedef struct gss_union_ctx_id_t {
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- gss_OID mech_type;
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- gss_ctx_id_t internal_ctx_id;
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-} gss_union_ctx_id_desc, *gss_union_ctx_id_t;
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-
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-
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static auth_gssapi_log_badauth_func log_badauth = NULL;
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static caddr_t log_badauth_data = NULL;
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static auth_gssapi_log_badauth2_func log_badauth2 = NULL;
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@@ -239,16 +229,8 @@ svcauth_gss_accept_sec_context(struct svc_req *rqst,
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gd->ctx = GSS_C_NO_CONTEXT;
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goto errout;
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}
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- /*
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- * ANDROS: krb5 mechglue returns ctx of size 8 - two pointers,
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- * one to the mechanism oid, one to the internal_ctx_id
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- */
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- if ((gr->gr_ctx.value = mem_alloc(sizeof(gss_union_ctx_id_desc))) == NULL) {
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- fprintf(stderr, "svcauth_gss_accept_context: out of memory\n");
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- goto errout;
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- }
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- memcpy(gr->gr_ctx.value, gd->ctx, sizeof(gss_union_ctx_id_desc));
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- gr->gr_ctx.length = sizeof(gss_union_ctx_id_desc);
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+ gr->gr_ctx.value = "xxxx";
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+ gr->gr_ctx.length = 4;
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/* gr->gr_win = 0x00000005; ANDROS: for debugging linux kernel version... */
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gr->gr_win = sizeof(gd->seqmask) * 8;
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@@ -520,8 +502,6 @@ gssrpc__svcauth_gss(struct svc_req *rqst, struct rpc_msg *msg,
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if (!svcauth_gss_nextverf(rqst, htonl(gr.gr_win))) {
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gss_release_buffer(&min_stat, &gr.gr_token);
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- mem_free(gr.gr_ctx.value,
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- sizeof(gss_union_ctx_id_desc));
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ret_freegc (AUTH_FAILED);
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}
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*no_dispatch = TRUE;
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@@ -531,7 +511,6 @@ gssrpc__svcauth_gss(struct svc_req *rqst, struct rpc_msg *msg,
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gss_release_buffer(&min_stat, &gr.gr_token);
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gss_release_buffer(&min_stat, &gd->checksum);
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- mem_free(gr.gr_ctx.value, sizeof(gss_union_ctx_id_desc));
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if (!call_stat)
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ret_freegc (AUTH_FAILED);
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diff --git a/src/tests/gssapi/t_prf.c b/src/tests/gssapi/t_prf.c
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index 254f8fb..7f04899 100644
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--- a/src/tests/gssapi/t_prf.c
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+++ b/src/tests/gssapi/t_prf.c
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@@ -127,6 +127,7 @@ main(int argc, char *argv[])
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uctx.mech_type = &mech_krb5;
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uctx.internal_ctx_id = (gss_ctx_id_t)&kgctx;
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kgctx.k5_context = NULL;
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+ kgctx.established = 1;
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kgctx.have_acceptor_subkey = 1;
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kb1.contents = k1buf;
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kb2.contents = k2buf;
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