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Cache supported OIDS for GSSAPI kex (#1395288)

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This commit is contained in:
Jakub Jelen 2017-01-02 14:42:38 +01:00
parent dd8e5419eb
commit 4189cebf7a
2 changed files with 21 additions and 12 deletions
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13
openssh-7.0p1-gssKexAlgorithms.patch
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@ -82,12 +82,13 @@ diff -up openssh-7.0p1/gss-genr.c.gsskexalg openssh-7.0p1/gss-genr.c
diff -up openssh-7.0p1/gss-serv.c.gsskexalg openssh-7.0p1/gss-serv.c
--- openssh-7.0p1/gss-serv.c.gsskexalg 2015-08-19 12:28:38.024518959 +0200
+++ openssh-7.0p1/gss-serv.c 2015-08-19 12:28:38.078518839 +0200
@@ -150,7 +150,7 @@ ssh_gssapi_server_mechanisms() {
ssh_gssapi_supported_oids(&supported);
return (ssh_gssapi_kex_mechs(supported, &ssh_gssapi_server_check_mech,
- NULL, NULL));
+ NULL, NULL, options.gss_kex_algorithms));
@@ -149,7 +149,8 @@ ssh_gssapi_server_mechanisms() {
if (supported_oids == NULL)
ssh_gssapi_prepare_supported_oids();
return (ssh_gssapi_kex_mechs(supported_oids,
- &ssh_gssapi_server_check_mech, NULL, NULL));
+ &ssh_gssapi_server_check_mech, NULL, NULL,
+ options.gss_kex_algorithms));
}
/* Unprivileged */

20
openssh-7.2p1-gsskex.patch
View File

@ -546,17 +546,16 @@ diff -up openssh-7.2p1/gss-serv.c.gsskex openssh-7.2p1/gss-serv.c
#ifdef KRB5
extern ssh_gssapi_mech gssapi_kerberos_mech;
@@ -142,6 +144,29 @@ ssh_gssapi_server_ctx(Gssctxt **ctx, gss
@@ -142,6 +144,28 @@ ssh_gssapi_server_ctx(Gssctxt **ctx, gss
}
/* Unprivileged */
+char *
+ssh_gssapi_server_mechanisms() {
+ gss_OID_set supported;
+
+ ssh_gssapi_supported_oids(&supported);
+ return (ssh_gssapi_kex_mechs(supported, &ssh_gssapi_server_check_mech,
+ NULL, NULL));
+ if (supported_oids == NULL)
+ ssh_gssapi_prepare_supported_oids();
+ return (ssh_gssapi_kex_mechs(supported_oids,
+ &ssh_gssapi_server_check_mech, NULL, NULL));
+}
+
+/* Unprivileged */
@ -2489,6 +2488,15 @@ diff -up openssh-7.2p1/sshconnect2.c.gsskex openssh-7.2p1/sshconnect2.c
diff -up openssh-7.2p1/sshd.c.gsskex openssh-7.2p1/sshd.c
--- openssh-7.2p1/sshd.c.gsskex 2016-02-19 10:01:04.860969328 +0100
+++ openssh-7.2p1/sshd.c 2016-02-19 10:01:04.872969321 +0100
@@ -547,7 +547,7 @@ privsep_preauth_child(void)
#ifdef GSSAPI
/* Cache supported mechanism OIDs for later use */
- if (options.gss_authentication)
+ if (options.gss_authentication || options.gss_keyex)
ssh_gssapi_prepare_supported_oids();
#endif
@@ -974,8 +974,9 @@ notify_hostkeys(struct ssh *ssh)
}
debug3("%s: sent %d hostkeys", __func__, nkeys);