125 lines
4.6 KiB
Diff
125 lines
4.6 KiB
Diff
diff -up openssh-6.8p1/pam_ssh_agent_auth-0.9.3/iterate_ssh_agent_keys.c.psaa-agent openssh-6.8p1/pam_ssh_agent_auth-0.9.3/iterate_ssh_agent_keys.c
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--- openssh-6.8p1/pam_ssh_agent_auth-0.9.3/iterate_ssh_agent_keys.c.psaa-agent 2015-06-02 16:43:09.231902255 +0200
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+++ openssh-6.8p1/pam_ssh_agent_auth-0.9.3/iterate_ssh_agent_keys.c 2015-06-02 16:43:09.235902253 +0200
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@@ -37,6 +37,7 @@
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#include "buffer.h"
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#include "key.h"
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#include "authfd.h"
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+#include "ssherr.h"
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#include "ssh.h"
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#include <stdio.h>
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#include <sys/types.h>
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@@ -177,34 +178,40 @@ int
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find_authorized_keys(uid_t uid)
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{
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Identity *id;
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- Key *key;
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AuthenticationConnection *ac;
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- char *comment;
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uint8_t retval = 0;
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+ struct ssh_identitylist *idlist;
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+ int r, i;
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OpenSSL_add_all_digests();
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session_id2 = session_id2_gen();
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if ((ac = ssh_get_authentication_connection_for_uid(uid))) {
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verbose("Contacted ssh-agent of user %s (%u)", getpwuid(uid)->pw_name, uid);
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- for (key = ssh_get_first_identity(ac, &comment, 2); key != NULL; key = ssh_get_next_identity(ac, &comment, 2))
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+ if ((r = ssh_fetch_identitylist(ac->fd, 2,
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+ &idlist)) != 0) {
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+ if (r != SSH_ERR_AGENT_NO_IDENTITIES)
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+ fprintf(stderr, "error fetching identities for "
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+ "protocol %d: %s\n", 2, ssh_err(r));
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+ } else
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+ for (i = 0; i < idlist->nkeys; i++)
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{
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- if(key != NULL) {
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+ if(idlist->keys[i] != NULL) {
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id = xcalloc(1, sizeof(*id));
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- id->key = key;
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- id->filename = comment;
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+ id->key = idlist->keys[i];
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+ id->filename = idlist->comments[i];
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id->ac = ac;
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if(userauth_pubkey_from_id(id)) {
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retval = 1;
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}
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- free(id->filename);
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- key_free(id->key);
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free(id);
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if(retval == 1)
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break;
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}
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}
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- ssh_close_authentication_connection(ac);
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+ ssh_free_identitylist(idlist);
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+ ssh_close_authentication_socket(ac->fd);
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+ free(ac);
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}
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else {
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verbose("No ssh-agent could be contacted");
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diff -up openssh-6.8p1/pam_ssh_agent_auth-0.9.3/identity.h.psaa-agent openssh-6.8p1/pam_ssh_agent_auth-0.9.3/identity.h
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--- openssh-6.8p1/pam_ssh_agent_auth-0.9.3/identity.h.psaa-agent 2009-08-09 02:54:21.000000000 +0200
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+++ openssh-6.8p1/pam_ssh_agent_auth-0.9.3/identity.h 2015-06-02 16:43:09.235902253 +0200
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@@ -14,6 +14,12 @@
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typedef struct identity Identity;
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typedef struct idlist Idlist;
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+typedef struct {
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+ int fd;
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+ Buffer identities;
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+ int howmany;
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+} AuthenticationConnection;
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+
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struct identity {
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TAILQ_ENTRY(identity) next;
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AuthenticationConnection *ac; /* set if agent supports key */
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diff -up openssh-6.8p1/pam_ssh_agent_auth-0.9.3/userauth_pubkey_from_id.c.psaa-agent openssh-6.8p1/pam_ssh_agent_auth-0.9.3/userauth_pubkey_from_id.c
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--- openssh-6.8p1/pam_ssh_agent_auth-0.9.3/userauth_pubkey_from_id.c.psaa-agent 2015-06-02 16:43:09.232902254 +0200
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+++ openssh-6.8p1/pam_ssh_agent_auth-0.9.3/userauth_pubkey_from_id.c 2015-06-02 16:45:07.699822094 +0200
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@@ -54,10 +54,11 @@ extern uint8_t session_id_len;
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int
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userauth_pubkey_from_id(Identity * id)
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{
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- Buffer b = { 0 };
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+ Buffer b;
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char *pkalg = NULL;
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u_char *pkblob = NULL, *sig = NULL;
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- u_int blen = 0, slen = 0;
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+ u_int blen = 0;
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+ size_t slen = 0;
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int authenticated = 0;
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pkalg = (char *) key_ssh_name(id->key);
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@@ -65,10 +65,10 @@ userauth_pubkey_from_id(Identity * id)
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/* first test if this key is even allowed */
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if(! pam_user_key_allowed(id->key))
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- goto user_auth_clean_exit;
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+ goto user_auth_clean_exit_without_buffer;
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if(key_to_blob(id->key, &pkblob, &blen) == 0)
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- goto user_auth_clean_exit;
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+ goto user_auth_clean_exit_without_buffer;
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/* construct packet to sign and test */
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buffer_init(&b);
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@@ -70,7 +70,7 @@ userauth_pubkey_from_id(Identity * id)
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buffer_put_cstring(&b, pkalg);
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buffer_put_string(&b, pkblob, blen);
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- if(ssh_agent_sign(id->ac, id->key, &sig, &slen, buffer_ptr(&b), buffer_len(&b)) != 0)
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+ if(ssh_agent_sign(id->ac->fd, id->key, &sig, &slen, buffer_ptr(&b), buffer_len(&b), 1) != 0)
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goto user_auth_clean_exit;
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/* test for correct signature */
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@@ -92,6 +92,7 @@ userauth_pubkey_from_id(Identity * id)
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user_auth_clean_exit:
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if(&b != NULL)
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buffer_free(&b);
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+ user_auth_clean_exit_without_buffer:
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if(sig != NULL)
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free(sig);
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if(pkblob != NULL)
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