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diff -up openssh-7.4p1/pam_ssh_agent_auth-0.10.3/get_command_line.c.psaa-agent openssh-7.4p1/pam_ssh_agent_auth-0.10.3/get_command_line.c
--- openssh-7.4p1/pam_ssh_agent_auth-0.10.3/get_command_line.c.psaa-agent 2017-02-14 10:19:16.466070259 +0100
+++ openssh-7.4p1/pam_ssh_agent_auth-0.10.3/get_command_line.c 2017-02-14 10:26:10.062866980 +0100
@@ -65,8 +65,8 @@ proc_pid_cmdline(char *** inargv)
case EOF:
case '\0':
if (len > 0) {
- argv = pamsshagentauth_xrealloc(argv, count + 1, sizeof(*argv));
- argv[count] = pamsshagentauth_xcalloc(len + 1, sizeof(*argv[count]));
+ argv = xrealloc(argv, count + 1, sizeof(*argv));
+ argv[count] = xcalloc(len + 1, sizeof(*argv[count]));
strncpy(argv[count++], argbuf, len);
memset(argbuf, '\0', MAX_LEN_PER_CMDLINE_ARG + 1);
len = 0;
diff -up openssh-7.4p1/pam_ssh_agent_auth-0.10.3/identity.h.psaa-agent openssh-7.4p1/pam_ssh_agent_auth-0.10.3/identity.h
--- openssh-7.4p1/pam_ssh_agent_auth-0.10.3/identity.h.psaa-agent 2016-11-13 04:24:32.000000000 +0100
+++ openssh-7.4p1/pam_ssh_agent_auth-0.10.3/identity.h 2017-02-14 10:19:12.225071868 +0100
@@ -38,6 +38,12 @@
typedef struct identity Identity;
typedef struct idlist Idlist;
+typedef struct {
+ int fd;
+ Buffer identities;
+ int howmany;
+} AuthenticationConnection;
+
struct identity {
TAILQ_ENTRY(identity) next;
AuthenticationConnection *ac; /* set if agent supports key */
diff -up openssh-7.4p1/pam_ssh_agent_auth-0.10.3/iterate_ssh_agent_keys.c.psaa-agent openssh-7.4p1/pam_ssh_agent_auth-0.10.3/iterate_ssh_agent_keys.c
--- openssh-7.4p1/pam_ssh_agent_auth-0.10.3/iterate_ssh_agent_keys.c.psaa-agent 2017-02-14 10:19:12.224071868 +0100
+++ openssh-7.4p1/pam_ssh_agent_auth-0.10.3/iterate_ssh_agent_keys.c 2017-02-14 10:19:12.226071867 +0100
@@ -52,12 +52,15 @@
#include <openssl/evp.h>
#include "ssh2.h"
#include "misc.h"
+#include "ssherr.h"
#include "userauth_pubkey_from_id.h"
#include "identity.h"
#include "get_command_line.h"
extern char **environ;
+#define PAM_SSH_AGENT_AUTH_REQUESTv1 101
+
static char *
log_action(char ** action, size_t count)
{
@@ -67,7 +70,7 @@ log_action(char ** action, size_t count)
if (count == 0)
return NULL;
- buf = pamsshagentauth_xcalloc((count * MAX_LEN_PER_CMDLINE_ARG) + (count * 3), sizeof(*buf));
+ buf = xcalloc((count * MAX_LEN_PER_CMDLINE_ARG) + (count * 3), sizeof(*buf));
for (i = 0; i < count; i++) {
strcat(buf, (i > 0) ? " '" : "'");
strncat(buf, action[i], MAX_LEN_PER_CMDLINE_ARG);
@@ -80,12 +83,12 @@ void
agent_action(Buffer *buf, char ** action, size_t count)
{
size_t i;
- pamsshagentauth_buffer_init(buf);
+ buffer_init(buf);
- pamsshagentauth_buffer_put_int(buf, count);
+ buffer_put_int(buf, count);
for (i = 0; i < count; i++) {
- pamsshagentauth_buffer_put_cstring(buf, action[i]);
+ buffer_put_cstring(buf, action[i]);
}
}
@@ -109,17 +112,17 @@ pamsshagentauth_session_id2_gen(Buffer *
char * retc;
int32_t reti;
- rnd = pamsshagentauth_arc4random();
+ rnd = arc4random();
cookie_len = ((uint8_t) rnd);
while (cookie_len < 16) {
cookie_len += 16; /* Add 16 bytes to the size to ensure that while the length is random, the length is always reasonable; ticket #18 */
}
- cookie = pamsshagentauth_xcalloc(1,cookie_len);
+ cookie = xcalloc(1,cookie_len);
for (i = 0; i < cookie_len; i++) {
if (i % 4 == 0) {
- rnd = pamsshagentauth_arc4random();
+ rnd = arc4random();
}
cookie[i] = (char) rnd;
rnd >>= 8;
@@ -134,7 +137,7 @@ pamsshagentauth_session_id2_gen(Buffer *
}
else {
action_logbuf = "unknown on this platform";
- pamsshagentauth_buffer_init(&action_agentbuf); /* stays empty, means unavailable */
+ buffer_init(&action_agentbuf); /* stays empty, means unavailable */
}
/*
@@ -151,35 +154,35 @@ pamsshagentauth_session_id2_gen(Buffer *
retc = getcwd(pwd, sizeof(pwd) - 1);
time(&ts);
- pamsshagentauth_buffer_init(session_id2);
+ buffer_init(session_id2);
- pamsshagentauth_buffer_put_int(session_id2, PAM_SSH_AGENT_AUTH_REQUESTv1);
- /* pamsshagentauth_debug3("cookie: %s", pamsshagentauth_tohex(cookie, cookie_len)); */
- pamsshagentauth_buffer_put_string(session_id2, cookie, cookie_len);
- /* pamsshagentauth_debug3("user: %s", user); */
- pamsshagentauth_buffer_put_cstring(session_id2, user);
- /* pamsshagentauth_debug3("ruser: %s", ruser); */
- pamsshagentauth_buffer_put_cstring(session_id2, ruser);
- /* pamsshagentauth_debug3("servicename: %s", servicename); */
- pamsshagentauth_buffer_put_cstring(session_id2, servicename);
- /* pamsshagentauth_debug3("pwd: %s", pwd); */
+ buffer_put_int(session_id2, PAM_SSH_AGENT_AUTH_REQUESTv1);
+ /* debug3("cookie: %s", tohex(cookie, cookie_len)); */
+ buffer_put_string(session_id2, cookie, cookie_len);
+ /* debug3("user: %s", user); */
+ buffer_put_cstring(session_id2, user);
+ /* debug3("ruser: %s", ruser); */
+ buffer_put_cstring(session_id2, ruser);
+ /* debug3("servicename: %s", servicename); */
+ buffer_put_cstring(session_id2, servicename);
+ /* debug3("pwd: %s", pwd); */
if(retc)
- pamsshagentauth_buffer_put_cstring(session_id2, pwd);
+ buffer_put_cstring(session_id2, pwd);
else
- pamsshagentauth_buffer_put_cstring(session_id2, "");
- /* pamsshagentauth_debug3("action: %s", action_logbuf); */
- pamsshagentauth_buffer_put_string(session_id2, action_agentbuf.buf + action_agentbuf.offset, action_agentbuf.end - action_agentbuf.offset);
+ buffer_put_cstring(session_id2, "");
+ /* debug3("action: %s", action_logbuf); */
+ buffer_put_string(session_id2, sshbuf_ptr(&action_agentbuf), sshbuf_len(&action_agentbuf));
if (free_logbuf) {
free(action_logbuf);
- pamsshagentauth_buffer_free(&action_agentbuf);
+ buffer_free(&action_agentbuf);
}
- /* pamsshagentauth_debug3("hostname: %s", hostname); */
+ /* debug3("hostname: %s", hostname); */
if(reti >= 0)
- pamsshagentauth_buffer_put_cstring(session_id2, hostname);
+ buffer_put_cstring(session_id2, hostname);
else
- pamsshagentauth_buffer_put_cstring(session_id2, "");
- /* pamsshagentauth_debug3("ts: %ld", ts); */
- pamsshagentauth_buffer_put_int64(session_id2, (uint64_t) ts);
+ buffer_put_cstring(session_id2, "");
+ /* debug3("ts: %ld", ts); */
+ buffer_put_int64(session_id2, (uint64_t) ts);
free(cookie);
return;
@@ -288,39 +291,47 @@ pamsshagentauth_find_authorized_keys(con
{
Buffer session_id2 = { 0 };
Identity *id;
- Key *key;
AuthenticationConnection *ac;
- char *comment;
uint8_t retval = 0;
uid_t uid = getpwnam(ruser)->pw_uid;
+ struct ssh_identitylist *idlist;
+ int r;
+ unsigned int i;
OpenSSL_add_all_digests();
pamsshagentauth_session_id2_gen(&session_id2, user, ruser, servicename);
if ((ac = ssh_get_authentication_connection_for_uid(uid))) {
- pamsshagentauth_verbose("Contacted ssh-agent of user %s (%u)", ruser, uid);
- for (key = ssh_get_first_identity(ac, &comment, 2); key != NULL; key = ssh_get_next_identity(ac, &comment, 2))
+ verbose("Contacted ssh-agent of user %s (%u)", ruser, uid);
+ if ((r = ssh_fetch_identitylist(ac->fd, 2,
+ &idlist)) != 0) {
+ if (r != SSH_ERR_AGENT_NO_IDENTITIES)
+ fprintf(stderr, "error fetching identities for "
+ "protocol %d: %s\n", 2, ssh_err(r));
+ } else {
+ for (i = 0; i < idlist->nkeys; i++)
{
- if(key != NULL) {
- id = pamsshagentauth_xcalloc(1, sizeof(*id));
- id->key = key;
- id->filename = comment;
+ if(idlist->keys[i] != NULL) {
+ id = xcalloc(1, sizeof(*id));
+ id->key = idlist->keys[i];
+ id->filename = idlist->comments[i];
id->ac = ac;
if(userauth_pubkey_from_id(ruser, id, &session_id2)) {
retval = 1;
}
- free(id->filename);
- pamsshagentauth_key_free(id->key);
free(id);
if(retval == 1)
break;
}
}
- pamsshagentauth_buffer_free(&session_id2);
- ssh_close_authentication_connection(ac);
+ buffer_free(&session_id2);
+ ssh_free_identitylist(idlist);
+ ssh_close_authentication_socket(ac->fd);
+ free(ac);
+ }
}
else {
- pamsshagentauth_verbose("No ssh-agent could be contacted");
+ verbose("No ssh-agent could be contacted");
}
/* pamsshagentauth_xfree(session_id2); */
EVP_cleanup();
diff -up openssh-7.4p1/pam_ssh_agent_auth-0.10.3/pam_ssh_agent_auth.c.psaa-agent openssh-7.4p1/pam_ssh_agent_auth-0.10.3/pam_ssh_agent_auth.c
--- openssh-7.4p1/pam_ssh_agent_auth-0.10.3/pam_ssh_agent_auth.c.psaa-agent 2017-02-14 10:19:12.223071868 +0100
+++ openssh-7.4p1/pam_ssh_agent_auth-0.10.3/pam_ssh_agent_auth.c 2017-02-14 10:19:12.226071867 +0100
@@ -104,7 +104,7 @@ pam_sm_authenticate(pam_handle_t * pamh,
* a patch 8-)
*/
#if ! HAVE___PROGNAME || HAVE_BUNDLE
- __progname = pamsshagentauth_xstrdup(servicename);
+ __progname = xstrdup(servicename);
#endif
for(i = argc, argv_ptr = (char **) argv; i > 0; ++argv_ptr, i--) {
@@ -130,11 +130,11 @@ pam_sm_authenticate(pam_handle_t * pamh,
#endif
}
- pamsshagentauth_log_init(__progname, log_lvl, facility, getenv("PAM_SSH_AGENT_AUTH_DEBUG") ? 1 : 0);
+ log_init(__progname, log_lvl, facility, getenv("PAM_SSH_AGENT_AUTH_DEBUG") ? 1 : 0);
pam_get_item(pamh, PAM_USER, (void *) &user);
pam_get_item(pamh, PAM_RUSER, (void *) &ruser_ptr);
- pamsshagentauth_verbose("Beginning pam_ssh_agent_auth for user %s", user);
+ verbose("Beginning pam_ssh_agent_auth for user %s", user);
if(ruser_ptr) {
strncpy(ruser, ruser_ptr, sizeof(ruser) - 1);
@@ -149,12 +149,12 @@ pam_sm_authenticate(pam_handle_t * pamh,
#ifdef ENABLE_SUDO_HACK
if( (strlen(sudo_service_name) > 0) && strncasecmp(servicename, sudo_service_name, sizeof(sudo_service_name) - 1) == 0 && getenv("SUDO_USER") ) {
strncpy(ruser, getenv("SUDO_USER"), sizeof(ruser) - 1 );
- pamsshagentauth_verbose( "Using environment variable SUDO_USER (%s)", ruser );
+ verbose( "Using environment variable SUDO_USER (%s)", ruser );
} else
#endif
{
if( ! getpwuid(getuid()) ) {
- pamsshagentauth_verbose("Unable to getpwuid(getuid())");
+ verbose("Unable to getpwuid(getuid())");
goto cleanexit;
}
strncpy(ruser, getpwuid(getuid())->pw_name, sizeof(ruser) - 1);
@@ -163,11 +163,11 @@ pam_sm_authenticate(pam_handle_t * pamh,
/* Might as well explicitely confirm the user exists here */
if(! getpwnam(ruser) ) {
- pamsshagentauth_verbose("getpwnam(%s) failed, bailing out", ruser);
+ verbose("getpwnam(%s) failed, bailing out", ruser);
goto cleanexit;
}
if( ! getpwnam(user) ) {
- pamsshagentauth_verbose("getpwnam(%s) failed, bailing out", user);
+ verbose("getpwnam(%s) failed, bailing out", user);
goto cleanexit;
}
@@ -177,8 +177,8 @@ pam_sm_authenticate(pam_handle_t * pamh,
*/
parse_authorized_key_file(user, authorized_keys_file_input);
} else {
- pamsshagentauth_verbose("Using default file=/etc/security/authorized_keys");
- authorized_keys_file = pamsshagentauth_xstrdup("/etc/security/authorized_keys");
+ verbose("Using default file=/etc/security/authorized_keys");
+ authorized_keys_file = xstrdup("/etc/security/authorized_keys");
}
/*
@@ -187,19 +187,19 @@ pam_sm_authenticate(pam_handle_t * pamh,
*/
if(user && strlen(ruser) > 0) {
- pamsshagentauth_verbose("Attempting authentication: `%s' as `%s' using %s", ruser, user, authorized_keys_file);
+ verbose("Attempting authentication: `%s' as `%s' using %s", ruser, user, authorized_keys_file);
/*
* this pw_uid is used to validate the SSH_AUTH_SOCK, and so must be the uid of the ruser invoking the program, not the target-user
*/
if(pamsshagentauth_find_authorized_keys(user, ruser, servicename)) { /* getpwnam(ruser)->pw_uid)) { */
- pamsshagentauth_logit("Authenticated: `%s' as `%s' using %s", ruser, user, authorized_keys_file);
+ logit("Authenticated: `%s' as `%s' using %s", ruser, user, authorized_keys_file);
retval = PAM_SUCCESS;
} else {
- pamsshagentauth_logit("Failed Authentication: `%s' as `%s' using %s", ruser, user, authorized_keys_file);
+ logit("Failed Authentication: `%s' as `%s' using %s", ruser, user, authorized_keys_file);
}
} else {
- pamsshagentauth_logit("No %s specified, cannot continue with this form of authentication", (user) ? "ruser" : "user" );
+ logit("No %s specified, cannot continue with this form of authentication", (user) ? "ruser" : "user" );
}
cleanexit:
diff -up openssh-7.4p1/pam_ssh_agent_auth-0.10.3/pam_user_authorized_keys.c.psaa-agent openssh-7.4p1/pam_ssh_agent_auth-0.10.3/pam_user_authorized_keys.c
--- openssh-7.4p1/pam_ssh_agent_auth-0.10.3/pam_user_authorized_keys.c.psaa-agent 2016-11-13 04:24:32.000000000 +0100
+++ openssh-7.4p1/pam_ssh_agent_auth-0.10.3/pam_user_authorized_keys.c 2017-02-14 10:19:12.226071867 +0100
@@ -117,12 +117,12 @@ parse_authorized_key_file(const char *us
} else {
slash_ptr = strchr(auth_keys_file_buf, '/');
if(!slash_ptr)
- pamsshagentauth_fatal
+ fatal
("cannot expand tilde in path without a `/'");
owner_uname_len = slash_ptr - auth_keys_file_buf - 1;
if(owner_uname_len > (sizeof(owner_uname) - 1))
- pamsshagentauth_fatal("Username too long");
+ fatal("Username too long");
strncat(owner_uname, auth_keys_file_buf + 1, owner_uname_len);
if(!authorized_keys_file_allowed_owner_uid)
@@ -130,11 +130,11 @@ parse_authorized_key_file(const char *us
getpwnam(owner_uname)->pw_uid;
}
authorized_keys_file =
- pamsshagentauth_tilde_expand_filename(auth_keys_file_buf,
+ tilde_expand_filename(auth_keys_file_buf,
authorized_keys_file_allowed_owner_uid);
strncpy(auth_keys_file_buf, authorized_keys_file,
sizeof(auth_keys_file_buf) - 1);
- pamsshagentauth_xfree(authorized_keys_file) /* when we
+ free(authorized_keys_file) /* when we
percent_expand
later, we'd step
on this, so free
@@ -150,7 +150,7 @@ parse_authorized_key_file(const char *us
strncat(hostname, fqdn, strcspn(fqdn, "."));
#endif
authorized_keys_file =
- pamsshagentauth_percent_expand(auth_keys_file_buf, "h",
+ percent_expand(auth_keys_file_buf, "h",
getpwnam(user)->pw_dir, "H", hostname,
"f", fqdn, "u", user, NULL);
}
diff -up openssh-7.4p1/pam_ssh_agent_auth-0.10.3/pam_user_key_allowed2.c.psaa-agent openssh-7.4p1/pam_ssh_agent_auth-0.10.3/pam_user_key_allowed2.c
--- openssh-7.4p1/pam_ssh_agent_auth-0.10.3/pam_user_key_allowed2.c.psaa-agent 2017-02-14 10:19:12.224071868 +0100
+++ openssh-7.4p1/pam_ssh_agent_auth-0.10.3/pam_user_key_allowed2.c 2017-02-14 10:19:12.226071867 +0100
@@ -35,6 +35,7 @@
#include <sys/stat.h>
#include <sys/wait.h>
#include <fcntl.h>
+#include <unistd.h>
#include <pwd.h>
#include <stdio.h>
@@ -53,6 +54,7 @@
#include "misc.h"
#include "secure_filename.h"
#include "uidswap.h"
+#include "digest.h"
#include "identity.h"
@@ -68,7 +70,7 @@ pamsshagentauth_check_authkeys_file(FILE
char *fp;
found_key = 0;
- found = pamsshagentauth_key_new(key->type);
+ found = key_new(key->type);
while(read_keyfile_line(f, file, line, sizeof(line), &linenum) != -1) {
char *cp = NULL; /* *key_options = NULL; */
@@ -78,11 +80,11 @@ pamsshagentauth_check_authkeys_file(FILE
if(!*cp || *cp == '\n' || *cp == '#')
continue;
- if(pamsshagentauth_key_read(found, &cp) != 1) {
+ if(key_read(found, &cp) != 1) {
/* no key? check if there are options for this key */
int quoted = 0;
- pamsshagentauth_verbose("user_key_allowed: check options: '%s'", cp);
+ verbose("user_key_allowed: check options: '%s'", cp);
/* key_options = cp; */
for(; *cp && (quoted || (*cp != ' ' && *cp != '\t')); cp++) {
if(*cp == '\\' && cp[1] == '"')
@@ -92,26 +94,26 @@ pamsshagentauth_check_authkeys_file(FILE
}
/* Skip remaining whitespace. */
for(; *cp == ' ' || *cp == '\t'; cp++);
- if(pamsshagentauth_key_read(found, &cp) != 1) {
- pamsshagentauth_verbose("user_key_allowed: advance: '%s'", cp);
+ if(key_read(found, &cp) != 1) {
+ verbose("user_key_allowed: advance: '%s'", cp);
/* still no key? advance to next line */
continue;
}
}
- if(pamsshagentauth_key_equal(found, key)) {
+ if(key_equal(found, key)) {
found_key = 1;
- pamsshagentauth_logit("matching key found: file/command %s, line %lu", file,
+ logit("matching key found: file/command %s, line %lu", file,
linenum);
- fp = pamsshagentauth_key_fingerprint(found, SSH_FP_MD5, SSH_FP_HEX);
- pamsshagentauth_logit("Found matching %s key: %s",
- pamsshagentauth_key_type(found), fp);
+ fp = key_fingerprint(found, SSH_FP_MD5, SSH_FP_HEX);
+ logit("Found matching %s key: %s",
+ key_type(found), fp);
free(fp);
break;
}
}
- pamsshagentauth_key_free(found);
+ key_free(found);
if(!found_key)
- pamsshagentauth_verbose("key not found");
+ verbose("key not found");
return found_key;
}
@@ -128,11 +130,11 @@ pamsshagentauth_user_key_allowed2(struct
char buf[SSH_MAX_PUBKEY_BYTES];
/* Temporarily use the user's uid. */
- pamsshagentauth_verbose("trying public key file %s", file);
+ verbose("trying public key file %s", file);
/* Fail not so quietly if file does not exist */
if(stat(file, &st) < 0) {
- pamsshagentauth_verbose("File not found: %s", file);
+ verbose("File not found: %s", file);
return 0;
}
@@ -144,7 +146,7 @@ pamsshagentauth_user_key_allowed2(struct
if(pamsshagentauth_secure_filename(f, file, pw, buf, sizeof(buf)) != 0) {
fclose(f);
- pamsshagentauth_logit("Authentication refused: %s", buf);
+ logit("Authentication refused: %s", buf);
return 0;
}
@@ -187,44 +189,44 @@ pamsshagentauth_user_key_command_allowed
else {
pw = getpwnam(authorized_keys_command_user);
if(pw == NULL) {
- pamsshagentauth_logerror("authorized_keys_command_user \"%s\" not found: %s",
+ error("authorized_keys_command_user \"%s\" not found: %s",
authorized_keys_command_user, strerror(errno));
return 0;
}
}
- pamsshagentauth_temporarily_use_uid(pw);
+ temporarily_use_uid(pw);
if(stat(authorized_keys_command, &st) < 0) {
- pamsshagentauth_logerror
+ error
("Could not stat AuthorizedKeysCommand \"%s\": %s",
authorized_keys_command, strerror(errno));
goto out;
}
if(pamsshagentauth_auth_secure_path
(authorized_keys_command, &st, NULL, 0, errmsg, sizeof(errmsg)) != 0) {
- pamsshagentauth_logerror("Unsafe AuthorizedKeysCommand: %s", errmsg);
+ error("Unsafe AuthorizedKeysCommand: %s", errmsg);
goto out;
}
/* open the pipe and read the keys */
if(pipe(p) != 0) {
- pamsshagentauth_logerror("%s: pipe: %s", __func__, strerror(errno));
+ error("%s: pipe: %s", __func__, strerror(errno));
goto out;
}
- pamsshagentauth_debug("Running AuthorizedKeysCommand: \"%s\" as \"%s\" with argument: \"%s\"",
+ debug("Running AuthorizedKeysCommand: \"%s\" as \"%s\" with argument: \"%s\"",
authorized_keys_command, pw->pw_name, username);
/*
* Don't want to call this in the child, where it can fatal() and
* run cleanup_exit() code.
*/
- pamsshagentauth_restore_uid();
+ restore_uid();
switch ((pid = fork())) {
case -1: /* error */
- pamsshagentauth_logerror("%s: fork: %s", __func__, strerror(errno));
+ error("%s: fork: %s", __func__, strerror(errno));
close(p[0]);
close(p[1]);
return 0;
@@ -234,13 +236,13 @@ pamsshagentauth_user_key_command_allowed
/* do this before the setresuid so thta they can be logged */
if((devnull = open(_PATH_DEVNULL, O_RDWR)) == -1) {
- pamsshagentauth_logerror("%s: open %s: %s", __func__, _PATH_DEVNULL,
+ error("%s: open %s: %s", __func__, _PATH_DEVNULL,
strerror(errno));
_exit(1);
}
if(dup2(devnull, STDIN_FILENO) == -1 || dup2(p[1], STDOUT_FILENO) == -1
|| dup2(devnull, STDERR_FILENO) == -1) {
- pamsshagentauth_logerror("%s: dup2: %s", __func__, strerror(errno));
+ error("%s: dup2: %s", __func__, strerror(errno));
_exit(1);
}
#if defined(HAVE_SETRESGID) && !defined(BROKEN_SETRESGID)
@@ -248,7 +250,7 @@ pamsshagentauth_user_key_command_allowed
#else
if (setgid(pw->pw_gid) != 0 || setegid(pw->pw_gid) != 0) {
#endif
- pamsshagentauth_logerror("setresgid %u: %s", (u_int) pw->pw_gid,
+ error("setresgid %u: %s", (u_int) pw->pw_gid,
strerror(errno));
_exit(1);
}
@@ -258,7 +260,7 @@ pamsshagentauth_user_key_command_allowed
#else
if (setuid(pw->pw_uid) != 0 || seteuid(pw->pw_uid) != 0) {
#endif
- pamsshagentauth_logerror("setresuid %u: %s", (u_int) pw->pw_uid,
+ error("setresuid %u: %s", (u_int) pw->pw_uid,
strerror(errno));
_exit(1);
}
@@ -270,18 +272,18 @@ pamsshagentauth_user_key_command_allowed
/* pretty sure this will barf because we are now suid, but since we
should't reach this anyway, I'll leave it here */
- pamsshagentauth_logerror("AuthorizedKeysCommand %s exec failed: %s",
+ error("AuthorizedKeysCommand %s exec failed: %s",
authorized_keys_command, strerror(errno));
_exit(127);
default: /* parent */
break;
}
- pamsshagentauth_temporarily_use_uid(pw);
+ temporarily_use_uid(pw);
close(p[1]);
if((f = fdopen(p[0], "r")) == NULL) {
- pamsshagentauth_logerror("%s: fdopen: %s", __func__, strerror(errno));
+ error("%s: fdopen: %s", __func__, strerror(errno));
close(p[0]);
/* Don't leave zombie child */
while(waitpid(pid, NULL, 0) == -1 && errno == EINTR);
@@ -292,22 +294,22 @@ pamsshagentauth_user_key_command_allowed
while(waitpid(pid, &status, 0) == -1) {
if(errno != EINTR) {
- pamsshagentauth_logerror("%s: waitpid: %s", __func__,
+ error("%s: waitpid: %s", __func__,
strerror(errno));
goto out;
}
}
if(WIFSIGNALED(status)) {
- pamsshagentauth_logerror("AuthorizedKeysCommand %s exited on signal %d",
+ error("AuthorizedKeysCommand %s exited on signal %d",
authorized_keys_command, WTERMSIG(status));
goto out;
} else if(WEXITSTATUS(status) != 0) {
- pamsshagentauth_logerror("AuthorizedKeysCommand %s returned status %d",
+ error("AuthorizedKeysCommand %s returned status %d",
authorized_keys_command, WEXITSTATUS(status));
goto out;
}
found_key = ok;
out:
- pamsshagentauth_restore_uid();
+ restore_uid();
return found_key;
}
diff -up openssh-7.4p1/pam_ssh_agent_auth-0.10.3/secure_filename.c.psaa-agent openssh-7.4p1/pam_ssh_agent_auth-0.10.3/secure_filename.c
--- openssh-7.4p1/pam_ssh_agent_auth-0.10.3/secure_filename.c.psaa-agent 2016-11-13 04:24:32.000000000 +0100
+++ openssh-7.4p1/pam_ssh_agent_auth-0.10.3/secure_filename.c 2017-02-14 10:19:12.226071867 +0100
@@ -80,7 +80,7 @@ pamsshagentauth_auth_secure_path(const c
int comparehome = 0;
struct stat st;
- pamsshagentauth_verbose("auth_secure_filename: checking for uid: %u", uid);
+ verbose("auth_secure_filename: checking for uid: %u", uid);
if (realpath(name, buf) == NULL) {
snprintf(err, errlen, "realpath %s failed: %s", name,
@@ -115,9 +115,9 @@ pamsshagentauth_auth_secure_path(const c
snprintf(err, errlen, "dirname() failed");
return -1;
}
- pamsshagentauth_strlcpy(buf, cp, sizeof(buf));
+ strlcpy(buf, cp, sizeof(buf));
- pamsshagentauth_verbose("secure_filename: checking '%s'", buf);
+ verbose("secure_filename: checking '%s'", buf);
if (stat(buf, &st) < 0 ||
(st.st_uid != 0 && st.st_uid != uid) ||
(st.st_mode & 022) != 0) {
@@ -128,7 +128,7 @@ pamsshagentauth_auth_secure_path(const c
/* If are passed the homedir then we can stop */
if (comparehome && strcmp(homedir, buf) == 0) {
- pamsshagentauth_verbose("secure_filename: terminating check at '%s'",
+ verbose("secure_filename: terminating check at '%s'",
buf);
break;
}
diff -up openssh-7.4p1/pam_ssh_agent_auth-0.10.3/userauth_pubkey_from_id.c.psaa-agent openssh-7.4p1/pam_ssh_agent_auth-0.10.3/userauth_pubkey_from_id.c
--- openssh-7.4p1/pam_ssh_agent_auth-0.10.3/userauth_pubkey_from_id.c.psaa-agent 2017-02-14 10:19:12.224071868 +0100
+++ openssh-7.4p1/pam_ssh_agent_auth-0.10.3/userauth_pubkey_from_id.c 2017-02-14 10:19:12.226071867 +0100
@@ -48,6 +48,8 @@
#include "identity.h"
#include "pam_user_authorized_keys.h"
+#define SSH2_MSG_USERAUTH_TRUST_REQUEST 54
+
/* extern u_char *session_id2;
extern uint8_t session_id_len;
*/
@@ -58,40 +60,41 @@ userauth_pubkey_from_id(const char *ruse
Buffer b = { 0 };
char *pkalg = NULL;
u_char *pkblob = NULL, *sig = NULL;
- u_int blen = 0, slen = 0;
+ u_int blen = 0;
+ size_t slen = 0;
int authenticated = 0;
pkalg = (char *) key_ssh_name(id->key);
+ /* construct packet to sign and test */
+ buffer_init(&b);
+
/* first test if this key is even allowed */
if(! pam_user_key_allowed(ruser, id->key))
goto user_auth_clean_exit;
- if(pamsshagentauth_key_to_blob(id->key, &pkblob, &blen) == 0)
+ if(key_to_blob(id->key, &pkblob, &blen) == 0)
goto user_auth_clean_exit;
- /* construct packet to sign and test */
- pamsshagentauth_buffer_init(&b);
-
- pamsshagentauth_buffer_put_string(&b, session_id2->buf + session_id2->offset, session_id2->end - session_id2->offset);
- pamsshagentauth_buffer_put_char(&b, SSH2_MSG_USERAUTH_TRUST_REQUEST);
- pamsshagentauth_buffer_put_cstring(&b, ruser);
- pamsshagentauth_buffer_put_cstring(&b, "pam_ssh_agent_auth");
- pamsshagentauth_buffer_put_cstring(&b, "publickey");
- pamsshagentauth_buffer_put_char(&b, 1);
- pamsshagentauth_buffer_put_cstring(&b, pkalg);
- pamsshagentauth_buffer_put_string(&b, pkblob, blen);
+ buffer_put_string(&b, sshbuf_ptr(session_id2), sshbuf_len(session_id2));
+ buffer_put_char(&b, SSH2_MSG_USERAUTH_TRUST_REQUEST);
+ buffer_put_cstring(&b, ruser);
+ buffer_put_cstring(&b, "pam_ssh_agent_auth");
+ buffer_put_cstring(&b, "publickey");
+ buffer_put_char(&b, 1);
+ buffer_put_cstring(&b, pkalg);
+ buffer_put_string(&b, pkblob, blen);
- if(ssh_agent_sign(id->ac, id->key, &sig, &slen, pamsshagentauth_buffer_ptr(&b), pamsshagentauth_buffer_len(&b)) != 0)
+ if(ssh_agent_sign(id->ac->fd, id->key, &sig, &slen, buffer_ptr(&b), buffer_len(&b), NULL, 0) != 0)
goto user_auth_clean_exit;
/* test for correct signature */
- if(pamsshagentauth_key_verify(id->key, sig, slen, pamsshagentauth_buffer_ptr(&b), pamsshagentauth_buffer_len(&b)) == 1)
+ if(key_verify(id->key, sig, slen, buffer_ptr(&b), buffer_len(&b)) == 1)
authenticated = 1;
user_auth_clean_exit:
/* if(&b != NULL) */
- pamsshagentauth_buffer_free(&b);
+ buffer_free(&b);
if(sig != NULL)
free(sig);
if(pkblob != NULL)