diff -up openssh-4.7p1/configure.ac.selinux openssh-4.7p1/configure.ac --- openssh-4.7p1/configure.ac.selinux 2007-09-06 19:46:32.000000000 +0200 +++ openssh-4.7p1/configure.ac 2007-09-06 19:52:23.000000000 +0200 @@ -3211,6 +3211,7 @@ AC_ARG_WITH(selinux, AC_CHECK_LIB(selinux, setexeccon, [ LIBSELINUX="-lselinux" ], AC_MSG_ERROR(SELinux support requires libselinux library)) SSHDLIBS="$SSHDLIBS $LIBSELINUX" + LIBS="$LIBS $LIBSELINUX" AC_CHECK_FUNCS(getseuserbyname get_default_context_with_level) LIBS="$save_LIBS" fi ] diff -up openssh-4.7p1/auth1.c.selinux openssh-4.7p1/auth1.c --- openssh-4.7p1/auth1.c.selinux 2007-09-06 19:46:32.000000000 +0200 +++ openssh-4.7p1/auth1.c 2007-09-06 19:46:32.000000000 +0200 @@ -388,7 +388,7 @@ void do_authentication(Authctxt *authctxt) { u_int ulen; - char *user, *style = NULL; + char *user, *style = NULL, *role=NULL; /* Get the name of the user that we wish to log in as. */ packet_read_expect(SSH_CMSG_USER); @@ -397,11 +397,19 @@ do_authentication(Authctxt *authctxt) user = packet_get_string(&ulen); packet_check_eom(); + if ((role = strchr(user, '/')) != NULL) + *role++ = '\0'; + if ((style = strchr(user, ':')) != NULL) *style++ = '\0'; + else + if (role && (style = strchr(role, ':')) != NULL) + *style++ = '\0'; + authctxt->user = user; authctxt->style = style; + authctxt->role = role; /* Verify that the user is a valid user. */ if ((authctxt->pw = PRIVSEP(getpwnamallow(user))) != NULL) diff -up openssh-4.7p1/monitor_wrap.h.selinux openssh-4.7p1/monitor_wrap.h --- openssh-4.7p1/monitor_wrap.h.selinux 2006-08-05 04:39:40.000000000 +0200 +++ openssh-4.7p1/monitor_wrap.h 2007-09-06 19:46:32.000000000 +0200 @@ -41,6 +41,7 @@ int mm_is_monitor(void); DH *mm_choose_dh(int, int, int); int mm_key_sign(Key *, u_char **, u_int *, u_char *, u_int); void mm_inform_authserv(char *, char *); +void mm_inform_authrole(char *); struct passwd *mm_getpwnamallow(const char *); char *mm_auth2_read_banner(void); int mm_auth_password(struct Authctxt *, char *); diff -up openssh-4.7p1/monitor.h.selinux openssh-4.7p1/monitor.h --- openssh-4.7p1/monitor.h.selinux 2006-03-26 05:30:02.000000000 +0200 +++ openssh-4.7p1/monitor.h 2007-09-06 19:46:32.000000000 +0200 @@ -30,7 +30,7 @@ enum monitor_reqtype { MONITOR_REQ_MODULI, MONITOR_ANS_MODULI, - MONITOR_REQ_FREE, MONITOR_REQ_AUTHSERV, + MONITOR_REQ_FREE, MONITOR_REQ_AUTHSERV,MONITOR_REQ_AUTHROLE, MONITOR_REQ_SIGN, MONITOR_ANS_SIGN, MONITOR_REQ_PWNAM, MONITOR_ANS_PWNAM, MONITOR_REQ_AUTH2_READ_BANNER, MONITOR_ANS_AUTH2_READ_BANNER, diff -up openssh-4.7p1/monitor_wrap.c.selinux openssh-4.7p1/monitor_wrap.c --- openssh-4.7p1/monitor_wrap.c.selinux 2007-06-11 06:01:42.000000000 +0200 +++ openssh-4.7p1/monitor_wrap.c 2007-09-06 19:46:32.000000000 +0200 @@ -294,6 +294,23 @@ mm_inform_authserv(char *service, char * buffer_free(&m); } +/* Inform the privileged process about role */ + +void +mm_inform_authrole(char *role) +{ + Buffer m; + + debug3("%s entering", __func__); + + buffer_init(&m); + buffer_put_cstring(&m, role ? role : ""); + + mm_request_send(pmonitor->m_recvfd, MONITOR_REQ_AUTHROLE, &m); + + buffer_free(&m); +} + /* Do the password authentication */ int mm_auth_password(Authctxt *authctxt, char *password) diff -up openssh-4.7p1/openbsd-compat/port-linux.c.selinux openssh-4.7p1/openbsd-compat/port-linux.c --- openssh-4.7p1/openbsd-compat/port-linux.c.selinux 2007-06-28 00:48:03.000000000 +0200 +++ openssh-4.7p1/openbsd-compat/port-linux.c 2007-09-06 19:46:32.000000000 +0200 @@ -30,11 +30,16 @@ #ifdef WITH_SELINUX #include "log.h" #include "port-linux.h" +#include "key.h" +#include "hostfile.h" +#include "auth.h" #include #include #include +extern Authctxt *the_authctxt; + /* Wrapper around is_selinux_enabled() to log its return value once only */ static int ssh_selinux_enabled(void) @@ -53,23 +58,36 @@ ssh_selinux_enabled(void) static security_context_t ssh_selinux_getctxbyname(char *pwname) { - security_context_t sc; - char *sename = NULL, *lvl = NULL; - int r; + security_context_t sc = NULL; + char *sename, *lvl; + char *role = NULL; + int r = 0; + if (the_authctxt) + role=the_authctxt->role; #ifdef HAVE_GETSEUSERBYNAME - if (getseuserbyname(pwname, &sename, &lvl) != 0) - return NULL; + if ((r=getseuserbyname(pwname, &sename, &lvl)) != 0) { + sename = NULL; + lvl = NULL; + } #else sename = pwname; lvl = NULL; #endif + if (r == 0) { #ifdef HAVE_GET_DEFAULT_CONTEXT_WITH_LEVEL - r = get_default_context_with_level(sename, lvl, NULL, &sc); + if (role != NULL && role[0]) + r = get_default_context_with_rolelevel(sename, role, lvl, NULL, &sc); + else + r = get_default_context_with_level(sename, lvl, NULL, &sc); #else - r = get_default_context(sename, NULL, &sc); + if (role != NULL && role[0]) + r = get_default_context_with_role(sename, role, NULL, &sc); + else + r = get_default_context(sename, NULL, &sc); #endif + } if (r != 0) { switch (security_getenforce()) { diff -up openssh-4.7p1/auth.h.selinux openssh-4.7p1/auth.h --- openssh-4.7p1/auth.h.selinux 2006-08-18 16:32:46.000000000 +0200 +++ openssh-4.7p1/auth.h 2007-09-06 19:46:32.000000000 +0200 @@ -58,6 +58,7 @@ struct Authctxt { char *service; struct passwd *pw; /* set if 'valid' */ char *style; + char *role; void *kbdintctxt; #ifdef BSD_AUTH auth_session_t *as; diff -up openssh-4.7p1/auth2.c.selinux openssh-4.7p1/auth2.c --- openssh-4.7p1/auth2.c.selinux 2007-05-20 06:58:41.000000000 +0200 +++ openssh-4.7p1/auth2.c 2007-09-06 19:46:32.000000000 +0200 @@ -141,7 +141,7 @@ input_userauth_request(int type, u_int32 { Authctxt *authctxt = ctxt; Authmethod *m = NULL; - char *user, *service, *method, *style = NULL; + char *user, *service, *method, *style = NULL, *role = NULL; int authenticated = 0; if (authctxt == NULL) @@ -153,6 +153,9 @@ input_userauth_request(int type, u_int32 debug("userauth-request for user %s service %s method %s", user, service, method); debug("attempt %d failures %d", authctxt->attempt, authctxt->failures); + if ((role = strchr(user, '/')) != NULL) + *role++ = 0; + if ((style = strchr(user, ':')) != NULL) *style++ = 0; @@ -178,8 +181,11 @@ input_userauth_request(int type, u_int32 use_privsep ? " [net]" : ""); authctxt->service = xstrdup(service); authctxt->style = style ? xstrdup(style) : NULL; - if (use_privsep) + authctxt->role = role ? xstrdup(role) : NULL; + if (use_privsep) { mm_inform_authserv(service, style); + mm_inform_authrole(role); + } } else if (strcmp(user, authctxt->user) != 0 || strcmp(service, authctxt->service) != 0) { packet_disconnect("Change of username or service not allowed: " diff -up openssh-4.7p1/monitor.c.selinux openssh-4.7p1/monitor.c --- openssh-4.7p1/monitor.c.selinux 2007-05-20 07:10:16.000000000 +0200 +++ openssh-4.7p1/monitor.c 2007-09-06 19:46:32.000000000 +0200 @@ -133,6 +133,7 @@ int mm_answer_sign(int, Buffer *); int mm_answer_pwnamallow(int, Buffer *); int mm_answer_auth2_read_banner(int, Buffer *); int mm_answer_authserv(int, Buffer *); +int mm_answer_authrole(int, Buffer *); int mm_answer_authpassword(int, Buffer *); int mm_answer_bsdauthquery(int, Buffer *); int mm_answer_bsdauthrespond(int, Buffer *); @@ -204,6 +205,7 @@ struct mon_table mon_dispatch_proto20[] {MONITOR_REQ_SIGN, MON_ONCE, mm_answer_sign}, {MONITOR_REQ_PWNAM, MON_ONCE, mm_answer_pwnamallow}, {MONITOR_REQ_AUTHSERV, MON_ONCE, mm_answer_authserv}, + {MONITOR_REQ_AUTHROLE, MON_ONCE, mm_answer_authrole}, {MONITOR_REQ_AUTH2_READ_BANNER, MON_ONCE, mm_answer_auth2_read_banner}, {MONITOR_REQ_AUTHPASSWORD, MON_AUTH, mm_answer_authpassword}, #ifdef USE_PAM @@ -657,6 +659,7 @@ mm_answer_pwnamallow(int sock, Buffer *m else { /* Allow service/style information on the auth context */ monitor_permit(mon_dispatch, MONITOR_REQ_AUTHSERV, 1); + monitor_permit(mon_dispatch, MONITOR_REQ_AUTHROLE, 1); monitor_permit(mon_dispatch, MONITOR_REQ_AUTH2_READ_BANNER, 1); } @@ -702,6 +705,23 @@ mm_answer_authserv(int sock, Buffer *m) } int +mm_answer_authrole(int sock, Buffer *m) +{ + monitor_permit_authentications(1); + + authctxt->role = buffer_get_string(m, NULL); + debug3("%s: role=%s", + __func__, authctxt->role); + + if (strlen(authctxt->role) == 0) { + xfree(authctxt->role); + authctxt->role = NULL; + } + + return (0); +} + +int mm_answer_authpassword(int sock, Buffer *m) { static int call_count;