forked from rpms/openssh
272 lines
9.1 KiB
Diff
272 lines
9.1 KiB
Diff
diff -up openssh/auth2-pubkey.c.refactor openssh/auth2-pubkey.c
|
|
--- openssh/auth2-pubkey.c.refactor 2019-04-04 13:19:12.188821236 +0200
|
|
+++ openssh/auth2-pubkey.c 2019-04-04 13:19:12.276822078 +0200
|
|
@@ -72,6 +72,9 @@
|
|
extern ServerOptions options;
|
|
extern u_char *session_id2;
|
|
extern u_int session_id2_len;
|
|
+extern int inetd_flag;
|
|
+extern int rexeced_flag;
|
|
+extern Authctxt *the_authctxt;
|
|
|
|
static char *
|
|
format_key(const struct sshkey *key)
|
|
@@ -511,7 +514,8 @@ match_principals_command(struct ssh *ssh
|
|
|
|
if ((pid = subprocess("AuthorizedPrincipalsCommand", runas_pw, command,
|
|
ac, av, &f,
|
|
- SSH_SUBPROCESS_STDOUT_CAPTURE|SSH_SUBPROCESS_STDERR_DISCARD)) == 0)
|
|
+ SSH_SUBPROCESS_STDOUT_CAPTURE|SSH_SUBPROCESS_STDERR_DISCARD,
|
|
+ (inetd_flag && !rexeced_flag), the_authctxt)) == 0)
|
|
goto out;
|
|
|
|
uid_swapped = 1;
|
|
@@ -981,7 +985,8 @@ user_key_command_allowed2(struct ssh *ss
|
|
|
|
if ((pid = subprocess("AuthorizedKeysCommand", runas_pw, command,
|
|
ac, av, &f,
|
|
- SSH_SUBPROCESS_STDOUT_CAPTURE|SSH_SUBPROCESS_STDERR_DISCARD)) == 0)
|
|
+ SSH_SUBPROCESS_STDOUT_CAPTURE|SSH_SUBPROCESS_STDERR_DISCARD,
|
|
+ (inetd_flag && !rexeced_flag), the_authctxt)) == 0)
|
|
goto out;
|
|
|
|
uid_swapped = 1;
|
|
diff -up openssh/auth.c.refactor openssh/auth.c
|
|
--- openssh/auth.c.refactor 2019-04-04 13:19:12.235821686 +0200
|
|
+++ openssh/auth.c 2019-04-04 13:19:12.276822078 +0200
|
|
@@ -756,7 +756,8 @@ auth_get_canonical_hostname(struct ssh *
|
|
*/
|
|
pid_t
|
|
subprocess(const char *tag, struct passwd *pw, const char *command,
|
|
- int ac, char **av, FILE **child, u_int flags)
|
|
+ int ac, char **av, FILE **child, u_int flags, int inetd,
|
|
+ void *the_authctxt)
|
|
{
|
|
FILE *f = NULL;
|
|
struct stat st;
|
|
@@ -872,7 +873,7 @@ subprocess(const char *tag, struct passw
|
|
}
|
|
|
|
#ifdef WITH_SELINUX
|
|
- if (sshd_selinux_setup_env_variables() < 0) {
|
|
+ if (sshd_selinux_setup_env_variables(inetd, the_authctxt) < 0) {
|
|
error ("failed to copy environment: %s",
|
|
strerror(errno));
|
|
_exit(127);
|
|
diff -up openssh/auth.h.refactor openssh/auth.h
|
|
--- openssh/auth.h.refactor 2019-04-04 13:19:12.251821839 +0200
|
|
+++ openssh/auth.h 2019-04-04 13:19:12.276822078 +0200
|
|
@@ -235,7 +235,7 @@ struct passwd *fakepw(void);
|
|
#define SSH_SUBPROCESS_STDOUT_CAPTURE (1<<1) /* Redirect stdout */
|
|
#define SSH_SUBPROCESS_STDERR_DISCARD (1<<2) /* Discard stderr */
|
|
pid_t subprocess(const char *, struct passwd *,
|
|
- const char *, int, char **, FILE **, u_int flags);
|
|
+ const char *, int, char **, FILE **, u_int flags, int, void *);
|
|
|
|
int sys_auth_passwd(struct ssh *, const char *);
|
|
|
|
diff -up openssh/openbsd-compat/port-linux.h.refactor openssh/openbsd-compat/port-linux.h
|
|
--- openssh/openbsd-compat/port-linux.h.refactor 2019-04-04 13:19:12.256821887 +0200
|
|
+++ openssh/openbsd-compat/port-linux.h 2019-04-04 13:19:12.276822078 +0200
|
|
@@ -26,8 +26,8 @@ void ssh_selinux_setfscreatecon(const ch
|
|
|
|
int sshd_selinux_enabled(void);
|
|
void sshd_selinux_copy_context(void);
|
|
-void sshd_selinux_setup_exec_context(char *);
|
|
-int sshd_selinux_setup_env_variables(void);
|
|
+void sshd_selinux_setup_exec_context(char *, int, int(char *, const char *), void *, int);
|
|
+int sshd_selinux_setup_env_variables(int inetd, void *);
|
|
void sshd_selinux_change_privsep_preauth_context(void);
|
|
#endif
|
|
|
|
diff -up openssh/openbsd-compat/port-linux-sshd.c.refactor openssh/openbsd-compat/port-linux-sshd.c
|
|
--- openssh/openbsd-compat/port-linux-sshd.c.refactor 2019-04-04 13:19:12.256821887 +0200
|
|
+++ openssh/openbsd-compat/port-linux-sshd.c 2019-04-04 13:19:12.276822078 +0200
|
|
@@ -49,11 +49,6 @@
|
|
#include <unistd.h>
|
|
#endif
|
|
|
|
-extern ServerOptions options;
|
|
-extern Authctxt *the_authctxt;
|
|
-extern int inetd_flag;
|
|
-extern int rexeced_flag;
|
|
-
|
|
/* Wrapper around is_selinux_enabled() to log its return value once only */
|
|
int
|
|
sshd_selinux_enabled(void)
|
|
@@ -223,7 +218,8 @@ get_user_context(const char *sename, con
|
|
}
|
|
|
|
static void
|
|
-ssh_selinux_get_role_level(char **role, const char **level)
|
|
+ssh_selinux_get_role_level(char **role, const char **level,
|
|
+ Authctxt *the_authctxt)
|
|
{
|
|
*role = NULL;
|
|
*level = NULL;
|
|
@@ -241,8 +237,8 @@ ssh_selinux_get_role_level(char **role,
|
|
|
|
/* Return the default security context for the given username */
|
|
static int
|
|
-sshd_selinux_getctxbyname(char *pwname,
|
|
- security_context_t *default_sc, security_context_t *user_sc)
|
|
+sshd_selinux_getctxbyname(char *pwname, security_context_t *default_sc,
|
|
+ security_context_t *user_sc, int inetd, Authctxt *the_authctxt)
|
|
{
|
|
char *sename, *lvl;
|
|
char *role;
|
|
@@ -250,7 +246,7 @@ sshd_selinux_getctxbyname(char *pwname,
|
|
int r = 0;
|
|
context_t con = NULL;
|
|
|
|
- ssh_selinux_get_role_level(&role, &reqlvl);
|
|
+ ssh_selinux_get_role_level(&role, &reqlvl, the_authctxt);
|
|
|
|
#ifdef HAVE_GETSEUSERBYNAME
|
|
if ((r=getseuserbyname(pwname, &sename, &lvl)) != 0) {
|
|
@@ -272,7 +268,7 @@ sshd_selinux_getctxbyname(char *pwname,
|
|
|
|
if (r == 0) {
|
|
/* If launched from xinetd, we must use current level */
|
|
- if (inetd_flag && !rexeced_flag) {
|
|
+ if (inetd) {
|
|
security_context_t sshdsc=NULL;
|
|
|
|
if (getcon_raw(&sshdsc) < 0)
|
|
@@ -333,7 +329,8 @@ sshd_selinux_getctxbyname(char *pwname,
|
|
|
|
/* Setup environment variables for pam_selinux */
|
|
static int
|
|
-sshd_selinux_setup_variables(int(*set_it)(char *, const char *))
|
|
+sshd_selinux_setup_variables(int(*set_it)(char *, const char *), int inetd,
|
|
+ Authctxt *the_authctxt)
|
|
{
|
|
const char *reqlvl;
|
|
char *role;
|
|
@@ -342,11 +339,11 @@ sshd_selinux_setup_variables(int(*set_it
|
|
|
|
debug3("%s: setting execution context", __func__);
|
|
|
|
- ssh_selinux_get_role_level(&role, &reqlvl);
|
|
+ ssh_selinux_get_role_level(&role, &reqlvl, the_authctxt);
|
|
|
|
rv = set_it("SELINUX_ROLE_REQUESTED", role ? role : "");
|
|
|
|
- if (inetd_flag && !rexeced_flag) {
|
|
+ if (inetd) {
|
|
use_current = "1";
|
|
} else {
|
|
use_current = "";
|
|
@@ -362,9 +359,10 @@ sshd_selinux_setup_variables(int(*set_it
|
|
}
|
|
|
|
static int
|
|
-sshd_selinux_setup_pam_variables(void)
|
|
+sshd_selinux_setup_pam_variables(int inetd,
|
|
+ int(pam_setenv)(char *, const char *), Authctxt *the_authctxt)
|
|
{
|
|
- return sshd_selinux_setup_variables(do_pam_putenv);
|
|
+ return sshd_selinux_setup_variables(pam_setenv, inetd, the_authctxt);
|
|
}
|
|
|
|
static int
|
|
@@ -374,25 +372,28 @@ do_setenv(char *name, const char *value)
|
|
}
|
|
|
|
int
|
|
-sshd_selinux_setup_env_variables(void)
|
|
+sshd_selinux_setup_env_variables(int inetd, void *the_authctxt)
|
|
{
|
|
- return sshd_selinux_setup_variables(do_setenv);
|
|
+ Authctxt *authctxt = (Authctxt *) the_authctxt;
|
|
+ return sshd_selinux_setup_variables(do_setenv, inetd, authctxt);
|
|
}
|
|
|
|
/* Set the execution context to the default for the specified user */
|
|
void
|
|
-sshd_selinux_setup_exec_context(char *pwname)
|
|
+sshd_selinux_setup_exec_context(char *pwname, int inetd,
|
|
+ int(pam_setenv)(char *, const char *), void *the_authctxt, int use_pam)
|
|
{
|
|
security_context_t user_ctx = NULL;
|
|
int r = 0;
|
|
security_context_t default_ctx = NULL;
|
|
+ Authctxt *authctxt = (Authctxt *) the_authctxt;
|
|
|
|
if (!sshd_selinux_enabled())
|
|
return;
|
|
|
|
- if (options.use_pam) {
|
|
+ if (use_pam) {
|
|
/* do not compute context, just setup environment for pam_selinux */
|
|
- if (sshd_selinux_setup_pam_variables()) {
|
|
+ if (sshd_selinux_setup_pam_variables(inetd, pam_setenv, authctxt)) {
|
|
switch (security_getenforce()) {
|
|
case -1:
|
|
fatal("%s: security_getenforce() failed", __func__);
|
|
@@ -410,7 +411,7 @@ sshd_selinux_setup_exec_context(char *pw
|
|
|
|
debug3("%s: setting execution context", __func__);
|
|
|
|
- r = sshd_selinux_getctxbyname(pwname, &default_ctx, &user_ctx);
|
|
+ r = sshd_selinux_getctxbyname(pwname, &default_ctx, &user_ctx, inetd, authctxt);
|
|
if (r >= 0) {
|
|
r = setexeccon(user_ctx);
|
|
if (r < 0) {
|
|
diff -up openssh/platform.c.refactor openssh/platform.c
|
|
--- openssh/platform.c.refactor 2019-04-04 13:19:12.204821389 +0200
|
|
+++ openssh/platform.c 2019-04-04 13:19:12.277822088 +0200
|
|
@@ -32,6 +32,9 @@
|
|
|
|
extern int use_privsep;
|
|
extern ServerOptions options;
|
|
+extern int inetd_flag;
|
|
+extern int rexeced_flag;
|
|
+extern Authctxt *the_authctxt;
|
|
|
|
void
|
|
platform_pre_listen(void)
|
|
@@ -183,7 +186,9 @@ platform_setusercontext_post_groups(stru
|
|
}
|
|
#endif /* HAVE_SETPCRED */
|
|
#ifdef WITH_SELINUX
|
|
- sshd_selinux_setup_exec_context(pw->pw_name);
|
|
+ sshd_selinux_setup_exec_context(pw->pw_name,
|
|
+ (inetd_flag && !rexeced_flag), do_pam_putenv, the_authctxt,
|
|
+ options.use_pam);
|
|
#endif
|
|
}
|
|
|
|
diff -up openssh/sshd.c.refactor openssh/sshd.c
|
|
--- openssh/sshd.c.refactor 2019-04-04 13:19:12.275822068 +0200
|
|
+++ openssh/sshd.c 2019-04-04 13:19:51.270195262 +0200
|
|
@@ -158,7 +158,7 @@ int debug_flag = 0;
|
|
static int test_flag = 0;
|
|
|
|
/* Flag indicating that the daemon is being started from inetd. */
|
|
-static int inetd_flag = 0;
|
|
+int inetd_flag = 0;
|
|
|
|
/* Flag indicating that sshd should not detach and become a daemon. */
|
|
static int no_daemon_flag = 0;
|
|
@@ -171,7 +171,7 @@ static char **saved_argv;
|
|
static int saved_argc;
|
|
|
|
/* re-exec */
|
|
-static int rexeced_flag = 0;
|
|
+int rexeced_flag = 0;
|
|
static int rexec_flag = 1;
|
|
static int rexec_argc = 0;
|
|
static char **rexec_argv;
|
|
@@ -2192,7 +2192,9 @@ main(int ac, char **av)
|
|
}
|
|
#endif
|
|
#ifdef WITH_SELINUX
|
|
- sshd_selinux_setup_exec_context(authctxt->pw->pw_name);
|
|
+ sshd_selinux_setup_exec_context(authctxt->pw->pw_name,
|
|
+ (inetd_flag && !rexeced_flag), do_pam_putenv, the_authctxt,
|
|
+ options.use_pam);
|
|
#endif
|
|
#ifdef USE_PAM
|
|
if (options.use_pam) {
|