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From 70f30d61e7f5da178e47dcfc8feb083a17be74ff Mon Sep 17 00:00:00 2001
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From: Simo Sorce <simo@redhat.com>
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Date: Thu, 27 Aug 2020 12:32:06 -0400
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Subject: [PATCH] Initialize interposed mech list without allocation
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While we had already fixed the leak here in main, the code performed
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unnecessary extra work, so just replacethe whole lot with a function
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that does not do any extra allocation or copy.
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Signed-off-by: Simo Sorce <simo@redhat.com>
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[rharwood@redhat.com: commit message]
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Reviewed-by: Robbie Harwood <rharwood@redhat.com>
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(cherry picked from commit 447d5352c2a81e219ccf04348a87b2ff25b7de15)
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(cherry picked from commit 4abda7e47551f39adfc074fc017f6006a4b91a19)
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---
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src/mechglue/gss_plugin.c | 31 ++++++++++++++++++++++++++-----
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1 file changed, 26 insertions(+), 5 deletions(-)
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diff --git a/src/mechglue/gss_plugin.c b/src/mechglue/gss_plugin.c
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index b9813dc..79e04d0 100644
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--- a/src/mechglue/gss_plugin.c
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+++ b/src/mechglue/gss_plugin.c
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@@ -65,6 +65,8 @@ enum gpp_behavior gpp_get_behavior(void)
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return behavior;
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}
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+static void gpp_init_special_available_mechs(const gss_OID_set mechs);
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+
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/* 2.16.840.1.113730.3.8.15.1 */
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const gss_OID_desc gssproxy_mech_interposer = {
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.length = 11,
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@@ -76,7 +78,6 @@ gss_OID_set gss_mech_interposer(gss_OID mech_type)
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gss_OID_set interposed_mechs;
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OM_uint32 maj, min;
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char *envval;
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- gss_OID_set special_mechs;
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/* avoid looping in the gssproxy daemon by avoiding to interpose
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* any mechanism */
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@@ -119,8 +120,7 @@ gss_OID_set gss_mech_interposer(gss_OID mech_type)
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}
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/* while there also initiaize special_mechs */
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- special_mechs = gpp_special_available_mechs(interposed_mechs);
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- (void)gss_release_oid_set(&min, &special_mechs);
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+ gpp_init_special_available_mechs(interposed_mechs);
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done:
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if (maj != 0) {
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@@ -307,13 +307,13 @@ gss_OID_set gpp_special_available_mechs(const gss_OID_set mechs)
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gss_OID n;
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uint32_t maj, min;
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- item = gpp_get_special_oids();
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-
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maj = gss_create_empty_oid_set(&min, &amechs);
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if (maj) {
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return GSS_C_NO_OID_SET;
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}
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for (size_t i = 0; i < mechs->count; i++) {
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+ item = gpp_get_special_oids();
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+
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while (item) {
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if (gpp_is_special_oid(&mechs->elements[i])) {
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maj = gss_add_oid_set_member(&min,
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@@ -354,6 +354,27 @@ done:
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return amechs;
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}
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+static void gpp_init_special_available_mechs(const gss_OID_set mechs)
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+{
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+ struct gpp_special_oid_list *item;
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+
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+ for (size_t i = 0; i < mechs->count; i++) {
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+ item = gpp_get_special_oids();
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+
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+ while (item) {
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+ if (gpp_is_special_oid(&mechs->elements[i]) ||
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+ gpp_special_equal(&item->special_oid, &mechs->elements[i])) {
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+ break;
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+ }
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+ item = gpp_next_special_oids(item);
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+ }
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+ if (item == NULL) {
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+ /* not found, add to static list */
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+ (void)gpp_new_special_mech(&mechs->elements[i]);
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+ }
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+ }
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+}
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+
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OM_uint32 gssi_internal_release_oid(OM_uint32 *minor_status, gss_OID *oid)
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{
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struct gpp_special_oid_list *item = NULL;
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