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Upstream convergence

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This commit is contained in:
Jan F. Chadima 2009-08-31 12:40:05 +00:00
parent 726565c3b0
commit ce94daebbc
3 changed files with 344 additions and 314 deletions
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543
openssh-5.2p1-selinux.patch
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@ -1,7 +1,176 @@
diff -up openssh-5.2p1/auth1.c.selinux openssh-5.2p1/auth1.c
--- openssh-5.2p1/auth1.c.selinux 2008-07-09 12:54:05.000000000 +0200
+++ openssh-5.2p1/auth1.c 2009-08-11 22:43:07.918183730 +0200
@@ -392,6 +392,9 @@ do_authentication(Authctxt *authctxt)
{
u_int ulen;
char *user, *style = NULL;
+#ifdef WITH_SELINUX
+ char *role=NULL;
+#endif
/* Get the name of the user that we wish to log in as. */
packet_read_expect(SSH_CMSG_USER);
@@ -400,11 +403,25 @@ do_authentication(Authctxt *authctxt)
user = packet_get_string(&ulen);
packet_check_eom();
+#ifdef WITH_SELINUX
+ if ((role = strchr(user, '/')) != NULL)
+ *role++ = '\0';
+#endif
+
if ((style = strchr(user, ':')) != NULL)
*style++ = '\0';
+#ifdef WITH_SELINUX
+ else
+ if (role && (style = strchr(role, ':')) != NULL)
+ *style++ = '\0';
+#endif
+
authctxt->user = user;
authctxt->style = style;
+#ifdef WITH_SELINUX
+ authctxt->role = role;
+#endif
/* Verify that the user is a valid user. */
if ((authctxt->pw = PRIVSEP(getpwnamallow(user))) != NULL)
diff -up openssh-5.2p1/auth2.c.selinux openssh-5.2p1/auth2.c
--- openssh-5.2p1/auth2.c.selinux 2008-11-05 06:20:46.000000000 +0100
+++ openssh-5.2p1/auth2.c 2009-08-11 22:43:07.919756192 +0200
@@ -216,6 +216,9 @@ input_userauth_request(int type, u_int32
Authctxt *authctxt = ctxt;
Authmethod *m = NULL;
char *user, *service, *method, *style = NULL;
+#ifdef WITH_SELINUX
+ char *role = NULL;
+#endif
int authenticated = 0;
if (authctxt == NULL)
@@ -227,6 +230,11 @@ 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);
+#ifdef WITH_SELINUX
+ if ((role = strchr(user, '/')) != NULL)
+ *role++ = 0;
+#endif
+
if ((style = strchr(user, ':')) != NULL)
*style++ = 0;
@@ -252,8 +260,15 @@ input_userauth_request(int type, u_int32
use_privsep ? " [net]" : "");
authctxt->service = xstrdup(service);
authctxt->style = style ? xstrdup(style) : NULL;
- if (use_privsep)
+#ifdef WITH_SELINUX
+ authctxt->role = role ? xstrdup(role) : NULL;
+#endif
+ if (use_privsep) {
mm_inform_authserv(service, style);
+#ifdef WITH_SELINUX
+ mm_inform_authrole(role);
+#endif
+ }
userauth_banner();
} else if (strcmp(user, authctxt->user) != 0 ||
strcmp(service, authctxt->service) != 0) {
diff -up openssh-5.2p1/auth2-gss.c.selinux openssh-5.2p1/auth2-gss.c
--- openssh-5.2p1/auth2-gss.c.selinux 2007-12-02 12:59:45.000000000 +0100
+++ openssh-5.2p1/auth2-gss.c 2009-08-11 22:43:07.921723295 +0200
@@ -258,6 +258,7 @@ input_gssapi_mic(int type, u_int32_t ple
Authctxt *authctxt = ctxt;
Gssctxt *gssctxt;
int authenticated = 0;
+ char *micuser;
Buffer b;
gss_buffer_desc mic, gssbuf;
u_int len;
@@ -270,7 +271,13 @@ input_gssapi_mic(int type, u_int32_t ple
mic.value = packet_get_string(&len);
mic.length = len;
- ssh_gssapi_buildmic(&b, authctxt->user, authctxt->service,
+#ifdef WITH_SELINUX
+ if (authctxt->role && (strlen(authctxt->role) > 0))
+ xasprintf(&micuser, "%s/%s", authctxt->user, authctxt->role);
+ else
+#endif
+ micuser = authctxt->user;
+ ssh_gssapi_buildmic(&b, micuser, authctxt->service,
"gssapi-with-mic");
gssbuf.value = buffer_ptr(&b);
@@ -282,6 +289,8 @@ input_gssapi_mic(int type, u_int32_t ple
logit("GSSAPI MIC check failed");
buffer_free(&b);
+ if (micuser != authctxt->user)
+ xfree(micuser);
xfree(mic.value);
authctxt->postponed = 0;
diff -up openssh-5.2p1/auth2-hostbased.c.selinux openssh-5.2p1/auth2-hostbased.c
--- openssh-5.2p1/auth2-hostbased.c.selinux 2008-07-17 10:57:19.000000000 +0200
+++ openssh-5.2p1/auth2-hostbased.c 2009-08-11 22:43:07.923721059 +0200
@@ -106,7 +106,15 @@ userauth_hostbased(Authctxt *authctxt)
buffer_put_string(&b, session_id2, session_id2_len);
/* reconstruct packet */
buffer_put_char(&b, SSH2_MSG_USERAUTH_REQUEST);
- buffer_put_cstring(&b, authctxt->user);
+#ifdef WITH_SELINUX
+ if (authctxt->role) {
+ buffer_put_int(&b, strlen(authctxt->user)+strlen(authctxt->role)+1);
+ buffer_append(&b, authctxt->user, strlen(authctxt->user));
+ buffer_put_char(&b, '/');
+ buffer_append(&b, authctxt->role, strlen(authctxt->role));
+ } else
+#endif
+ buffer_put_cstring(&b, authctxt->user);
buffer_put_cstring(&b, service);
buffer_put_cstring(&b, "hostbased");
buffer_put_string(&b, pkalg, alen);
diff -up openssh-5.2p1/auth2-pubkey.c.selinux openssh-5.2p1/auth2-pubkey.c
--- openssh-5.2p1/auth2-pubkey.c.selinux 2008-07-04 04:54:25.000000000 +0200
+++ openssh-5.2p1/auth2-pubkey.c 2009-08-11 22:43:07.925704588 +0200
@@ -117,7 +117,15 @@ userauth_pubkey(Authctxt *authctxt)
}
/* reconstruct packet */
buffer_put_char(&b, SSH2_MSG_USERAUTH_REQUEST);
- buffer_put_cstring(&b, authctxt->user);
+#ifdef WITH_SELINUX
+ if (authctxt->role) {
+ buffer_put_int(&b, strlen(authctxt->user)+strlen(authctxt->role)+1);
+ buffer_append(&b, authctxt->user, strlen(authctxt->user));
+ buffer_put_char(&b, '/');
+ buffer_append(&b, authctxt->role, strlen(authctxt->role));
+ } else
+#endif
+ buffer_put_cstring(&b, authctxt->user);
buffer_put_cstring(&b,
datafellows & SSH_BUG_PKSERVICE ?
"ssh-userauth" :
diff -up openssh-5.2p1/auth.h.selinux openssh-5.2p1/auth.h
--- openssh-5.2p1/auth.h.selinux 2008-11-05 06:20:46.000000000 +0100
+++ openssh-5.2p1/auth.h 2009-08-11 22:43:07.927199901 +0200
@@ -58,6 +58,9 @@ struct Authctxt {
char *service;
struct passwd *pw; /* set if 'valid' */
char *style;
+#ifdef WITH_SELINUX
+ char *role;
+#endif
void *kbdintctxt;
void *jpake_ctx;
#ifdef BSD_AUTH
diff -up openssh-5.2p1/configure.ac.selinux openssh-5.2p1/configure.ac
--- openssh-5.2p1/configure.ac.selinux 2008-07-23 16:32:13.000000000 +0200
+++ openssh-5.2p1/configure.ac 2008-07-23 16:32:13.000000000 +0200
@@ -3309,6 +3309,7 @@ AC_ARG_WITH(selinux,
--- openssh-5.2p1/configure.ac.selinux 2009-02-16 05:37:03.000000000 +0100
+++ openssh-5.2p1/configure.ac 2009-08-11 22:43:07.930259052 +0200
@@ -3335,6 +3335,7 @@ AC_ARG_WITH(selinux,
AC_CHECK_LIB(selinux, setexeccon, [ LIBSELINUX="-lselinux" ],
AC_MSG_ERROR(SELinux support requires libselinux library))
SSHDLIBS="$SSHDLIBS $LIBSELINUX"
@ -9,108 +178,124 @@ diff -up openssh-5.2p1/configure.ac.selinux openssh-5.2p1/configure.ac
AC_CHECK_FUNCS(getseuserbyname get_default_context_with_level)
LIBS="$save_LIBS"
fi ]
diff -up openssh-5.2p1/auth1.c.selinux openssh-5.2p1/auth1.c
--- openssh-5.2p1/auth1.c.selinux 2008-07-23 16:32:13.000000000 +0200
+++ openssh-5.2p1/auth1.c 2008-07-23 16:32:13.000000000 +0200
@@ -391,7 +391,7 @@ void
do_authentication(Authctxt *authctxt)
{
u_int ulen;
- char *user, *style = NULL;
+ char *user, *style = NULL, *role=NULL;
diff -up openssh-5.2p1/monitor.c.selinux openssh-5.2p1/monitor.c
--- openssh-5.2p1/monitor.c.selinux 2009-02-14 06:33:31.000000000 +0100
+++ openssh-5.2p1/monitor.c 2009-08-11 22:43:07.933623092 +0200
@@ -135,6 +135,9 @@ 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 *);
+#ifdef WITH_SELINUX
+int mm_answer_authrole(int, Buffer *);
+#endif
int mm_answer_authpassword(int, Buffer *);
int mm_answer_bsdauthquery(int, Buffer *);
int mm_answer_bsdauthrespond(int, Buffer *);
@@ -211,6 +214,9 @@ 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},
+#ifdef WITH_SELINUX
+ {MONITOR_REQ_AUTHROLE, MON_ONCE, mm_answer_authrole},
+#endif
{MONITOR_REQ_AUTH2_READ_BANNER, MON_ONCE, mm_answer_auth2_read_banner},
{MONITOR_REQ_AUTHPASSWORD, MON_AUTH, mm_answer_authpassword},
#ifdef USE_PAM
@@ -680,6 +686,9 @@ mm_answer_pwnamallow(int sock, Buffer *m
else {
/* Allow service/style information on the auth context */
monitor_permit(mon_dispatch, MONITOR_REQ_AUTHSERV, 1);
+#ifdef WITH_SELINUX
+ monitor_permit(mon_dispatch, MONITOR_REQ_AUTHROLE, 1);
+#endif
monitor_permit(mon_dispatch, MONITOR_REQ_AUTH2_READ_BANNER, 1);
}
/* Get the name of the user that we wish to log in as. */
packet_read_expect(SSH_CMSG_USER);
@@ -400,11 +400,19 @@ do_authentication(Authctxt *authctxt)
user = packet_get_string(&ulen);
packet_check_eom();
@@ -724,6 +733,25 @@ mm_answer_authserv(int sock, Buffer *m)
return (0);
}
+ if ((role = strchr(user, '/')) != NULL)
+ *role++ = '\0';
+#ifdef WITH_SELINUX
+int
+mm_answer_authrole(int sock, Buffer *m)
+{
+ monitor_permit_authentications(1);
+
if ((style = strchr(user, ':')) != NULL)
*style++ = '\0';
+ else
+ if (role && (style = strchr(role, ':')) != NULL)
+ *style++ = '\0';
+
+ 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);
+}
+#endif
+
int
mm_answer_authpassword(int sock, Buffer *m)
{
@@ -1102,7 +1130,7 @@ static int
monitor_valid_userblob(u_char *data, u_int datalen)
{
Buffer b;
- char *p;
+ char *p, *r;
u_int len;
int fail = 0;
authctxt->user = user;
authctxt->style = style;
+ authctxt->role = role;
@@ -1128,6 +1156,8 @@ monitor_valid_userblob(u_char *data, u_i
if (buffer_get_char(&b) != SSH2_MSG_USERAUTH_REQUEST)
fail++;
p = buffer_get_string(&b, NULL);
+ if ((r = strchr(p, '/')) != NULL)
+ *r = '\0';
if (strcmp(authctxt->user, p) != 0) {
logit("wrong user name passed to monitor: expected %s != %.100s",
authctxt->user, p);
@@ -1159,7 +1189,7 @@ monitor_valid_hostbasedblob(u_char *data
char *chost)
{
Buffer b;
- char *p;
+ char *p, *r;
u_int len;
int fail = 0;
/* Verify that the user is a valid user. */
if ((authctxt->pw = PRIVSEP(getpwnamallow(user))) != NULL)
diff -up openssh-5.2p1/auth2-pubkey.c.selinux openssh-5.2p1/auth2-pubkey.c
--- openssh-5.2p1/auth2-pubkey.c.selinux 2008-07-04 04:54:25.000000000 +0200
+++ openssh-5.2p1/auth2-pubkey.c 2008-07-23 16:32:13.000000000 +0200
@@ -117,7 +117,14 @@ userauth_pubkey(Authctxt *authctxt)
}
/* reconstruct packet */
buffer_put_char(&b, SSH2_MSG_USERAUTH_REQUEST);
- buffer_put_cstring(&b, authctxt->user);
+ if (authctxt->role) {
+ buffer_put_int(&b, strlen(authctxt->user)+strlen(authctxt->role)+1);
+ buffer_append(&b, authctxt->user, strlen(authctxt->user));
+ buffer_put_char(&b, '/');
+ buffer_append(&b, authctxt->role, strlen(authctxt->role));
+ } else {
+ buffer_put_cstring(&b, authctxt->user);
+ }
buffer_put_cstring(&b,
datafellows & SSH_BUG_PKSERVICE ?
"ssh-userauth" :
diff -up openssh-5.2p1/monitor_wrap.h.selinux openssh-5.2p1/monitor_wrap.h
--- openssh-5.2p1/monitor_wrap.h.selinux 2006-08-05 04:39:40.000000000 +0200
+++ openssh-5.2p1/monitor_wrap.h 2008-07-23 16:32:13.000000000 +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 *);
@@ -1176,6 +1206,8 @@ monitor_valid_hostbasedblob(u_char *data
if (buffer_get_char(&b) != SSH2_MSG_USERAUTH_REQUEST)
fail++;
p = buffer_get_string(&b, NULL);
+ if ((r = strchr(p, '/')) != NULL)
+ *r = '\0';
if (strcmp(authctxt->user, p) != 0) {
logit("wrong user name passed to monitor: expected %s != %.100s",
authctxt->user, p);
diff -up openssh-5.2p1/monitor.h.selinux openssh-5.2p1/monitor.h
--- openssh-5.2p1/monitor.h.selinux 2006-03-26 05:30:02.000000000 +0200
+++ openssh-5.2p1/monitor.h 2008-07-23 16:32:13.000000000 +0200
@@ -30,7 +30,7 @@
--- openssh-5.2p1/monitor.h.selinux 2008-11-05 06:20:46.000000000 +0100
+++ openssh-5.2p1/monitor.h 2009-08-11 22:43:07.935612930 +0200
@@ -31,6 +31,9 @@
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_FREE, MONITOR_REQ_AUTHSERV,
+#ifdef WITH_SELINUX
+ MONITOR_REQ_AUTHROLE,
+#endif
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-5.2p1/auth2-hostbased.c.selinux openssh-5.2p1/auth2-hostbased.c
--- openssh-5.2p1/auth2-hostbased.c.selinux 2008-07-17 10:57:19.000000000 +0200
+++ openssh-5.2p1/auth2-hostbased.c 2008-07-23 16:32:13.000000000 +0200
@@ -106,7 +106,14 @@ userauth_hostbased(Authctxt *authctxt)
buffer_put_string(&b, session_id2, session_id2_len);
/* reconstruct packet */
buffer_put_char(&b, SSH2_MSG_USERAUTH_REQUEST);
- buffer_put_cstring(&b, authctxt->user);
+ if (authctxt->role) {
+ buffer_put_int(&b, strlen(authctxt->user)+strlen(authctxt->role)+1);
+ buffer_append(&b, authctxt->user, strlen(authctxt->user));
+ buffer_put_char(&b, '/');
+ buffer_append(&b, authctxt->role, strlen(authctxt->role));
+ } else {
+ buffer_put_cstring(&b, authctxt->user);
+ }
buffer_put_cstring(&b, service);
buffer_put_cstring(&b, "hostbased");
buffer_put_string(&b, pkalg, alen);
diff -up openssh-5.2p1/monitor_wrap.c.selinux openssh-5.2p1/monitor_wrap.c
--- openssh-5.2p1/monitor_wrap.c.selinux 2008-07-11 09:36:48.000000000 +0200
+++ openssh-5.2p1/monitor_wrap.c 2008-07-23 16:32:13.000000000 +0200
@@ -296,6 +296,23 @@ mm_inform_authserv(char *service, char *
--- openssh-5.2p1/monitor_wrap.c.selinux 2008-11-05 06:20:47.000000000 +0100
+++ openssh-5.2p1/monitor_wrap.c 2009-08-11 22:43:07.937212340 +0200
@@ -297,6 +297,25 @@ mm_inform_authserv(char *service, char *
buffer_free(&m);
}
+/* Inform the privileged process about role */
+
+#ifdef WITH_SELINUX
+void
+mm_inform_authrole(char *role)
+{
@ -125,13 +310,27 @@ diff -up openssh-5.2p1/monitor_wrap.c.selinux openssh-5.2p1/monitor_wrap.c
+
+ buffer_free(&m);
+}
+#endif
+
/* Do the password authentication */
int
mm_auth_password(Authctxt *authctxt, char *password)
diff -up openssh-5.2p1/monitor_wrap.h.selinux openssh-5.2p1/monitor_wrap.h
--- openssh-5.2p1/monitor_wrap.h.selinux 2008-11-05 06:20:47.000000000 +0100
+++ openssh-5.2p1/monitor_wrap.h 2009-08-11 22:43:07.938268752 +0200
@@ -41,6 +41,9 @@ 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 *);
+#ifdef WITH_SELINUX
+void mm_inform_authrole(char *);
+#endif
struct passwd *mm_getpwnamallow(const char *);
char *mm_auth2_read_banner(void);
int mm_auth_password(struct Authctxt *, char *);
diff -up openssh-5.2p1/openbsd-compat/port-linux.c.selinux openssh-5.2p1/openbsd-compat/port-linux.c
--- openssh-5.2p1/openbsd-compat/port-linux.c.selinux 2008-03-26 21:27:21.000000000 +0100
+++ openssh-5.2p1/openbsd-compat/port-linux.c 2008-07-23 16:32:13.000000000 +0200
+++ openssh-5.2p1/openbsd-compat/port-linux.c 2009-08-11 22:44:14.529196220 +0200
@@ -30,11 +30,16 @@
#ifdef WITH_SELINUX
#include "log.h"
@ -193,169 +392,3 @@ diff -up openssh-5.2p1/openbsd-compat/port-linux.c.selinux openssh-5.2p1/openbsd
if (r != 0) {
switch (security_getenforce()) {
diff -up openssh-5.2p1/auth.h.selinux openssh-5.2p1/auth.h
--- openssh-5.2p1/auth.h.selinux 2008-07-02 14:37:30.000000000 +0200
+++ openssh-5.2p1/auth.h 2008-07-23 16:32:13.000000000 +0200
@@ -58,6 +58,7 @@ struct Authctxt {
char *service;
struct passwd *pw; /* set if 'valid' */
char *style;
+ char *role;
void *kbdintctxt;
void *jpake_ctx;
#ifdef BSD_AUTH
diff -up openssh-5.2p1/auth2.c.selinux openssh-5.2p1/auth2.c
--- openssh-5.2p1/auth2.c.selinux 2008-07-05 01:44:53.000000000 +0200
+++ openssh-5.2p1/auth2.c 2008-07-23 16:32:13.000000000 +0200
@@ -209,7 +209,7 @@ 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)
@@ -221,6 +221,9 @@ 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;
@@ -246,8 +249,11 @@ 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);
+ }
userauth_banner();
} else if (strcmp(user, authctxt->user) != 0 ||
strcmp(service, authctxt->service) != 0) {
diff -up openssh-5.2p1/monitor.c.selinux openssh-5.2p1/monitor.c
--- openssh-5.2p1/monitor.c.selinux 2008-07-11 09:36:48.000000000 +0200
+++ openssh-5.2p1/monitor.c 2008-07-23 16:36:10.000000000 +0200
@@ -134,6 +134,7 @@ 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 *);
@@ -205,6 +206,7 @@ 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
@@ -658,6 +660,7 @@ 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);
}
@@ -703,6 +706,23 @@ 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;
@@ -1080,7 +1100,7 @@ static int
monitor_valid_userblob(u_char *data, u_int datalen)
{
Buffer b;
- char *p;
+ char *p, *r;
u_int len;
int fail = 0;
@@ -1106,6 +1126,8 @@ monitor_valid_userblob(u_char *data, u_i
if (buffer_get_char(&b) != SSH2_MSG_USERAUTH_REQUEST)
fail++;
p = buffer_get_string(&b, NULL);
+ if ((r = strchr(p, '/')) != NULL)
+ *r = '\0';
if (strcmp(authctxt->user, p) != 0) {
logit("wrong user name passed to monitor: expected %s != %.100s",
authctxt->user, p);
@@ -1137,7 +1159,7 @@ monitor_valid_hostbasedblob(u_char *data
char *chost)
{
Buffer b;
- char *p;
+ char *p, *r;
u_int len;
int fail = 0;
@@ -1154,6 +1176,8 @@ monitor_valid_hostbasedblob(u_char *data
if (buffer_get_char(&b) != SSH2_MSG_USERAUTH_REQUEST)
fail++;
p = buffer_get_string(&b, NULL);
+ if ((r = strchr(p, '/')) != NULL)
+ *r = '\0';
if (strcmp(authctxt->user, p) != 0) {
logit("wrong user name passed to monitor: expected %s != %.100s",
authctxt->user, p);
diff -up openssh-5.1p1/auth2-gss.c.gssapi-role openssh-5.1p1/auth2-gss.c
--- openssh-5.1p1/auth2-gss.c.gssapi-role 2007-12-02 12:59:45.000000000 +0100
+++ openssh-5.1p1/auth2-gss.c 2008-07-23 19:18:15.000000000 +0200
@@ -258,6 +258,7 @@ input_gssapi_mic(int type, u_int32_t ple
Authctxt *authctxt = ctxt;
Gssctxt *gssctxt;
int authenticated = 0;
+ char *micuser;
Buffer b;
gss_buffer_desc mic, gssbuf;
u_int len;
@@ -270,7 +271,11 @@ input_gssapi_mic(int type, u_int32_t ple
mic.value = packet_get_string(&len);
mic.length = len;
- ssh_gssapi_buildmic(&b, authctxt->user, authctxt->service,
+ if (authctxt->role && (strlen(authctxt->role) > 0))
+ xasprintf(&micuser, "%s/%s", authctxt->user, authctxt->role);
+ else
+ micuser = authctxt->user;
+ ssh_gssapi_buildmic(&b, micuser, authctxt->service,
"gssapi-with-mic");
gssbuf.value = buffer_ptr(&b);
@@ -282,6 +287,8 @@ input_gssapi_mic(int type, u_int32_t ple
logit("GSSAPI MIC check failed");
buffer_free(&b);
+ if (micuser != authctxt->user)
+ xfree(micuser);
xfree(mic.value);
authctxt->postponed = 0;

113
openssh-5.2p1-sesftp.patch
View File

@ -1,67 +1,64 @@
diff -up openssh-5.2p1/openbsd-compat/port-linux.c.sesftp openssh-5.2p1/openbsd-compat/port-linux.c
--- openssh-5.2p1/openbsd-compat/port-linux.c.sesftp 2009-08-12 00:29:37.712368892 +0200
+++ openssh-5.2p1/openbsd-compat/port-linux.c 2009-08-12 00:29:37.732544890 +0200
@@ -469,4 +469,36 @@ ssh_selinux_setup_pty(char *pwname, cons
freecon(user_ctx);
debug3("%s: done", __func__);
}
+
+void
+ssh_selinux_change_context(const char *newname)
+{
+ int len, newlen;
+ char *oldctx, *newctx, *cx;
+
+ if (!ssh_selinux_enabled())
+ return;
+
+ if (getcon((security_context_t *)&oldctx) < 0) {
+ logit("%s: getcon failed with %s", __func__, strerror (errno));
+ return;
+ }
+ if ((cx = index(oldctx, ':')) == NULL || (cx = index(cx + 1, ':')) == NULL) {
+ logit ("%s: unparseable context %s", __func__, oldctx);
+ return;
+ }
+
+ newlen = strlen(oldctx) + strlen(newname) + 1;
+ newctx = xmalloc(newlen);
+ len = cx - oldctx + 1;
+ memcpy(newctx, oldctx, len);
+ strlcpy(newctx + len, newname, newlen - len);
+ if ((cx = index(cx + 1, ':')))
+ strlcat(newctx, cx, newlen);
+ debug3("%s: setting context from '%s' to '%s'", __func__, oldctx, newctx);
+ if (setcon(newctx) < 0)
+ logit("%s: setcon failed with %s", __func__, strerror (errno));
+ xfree(oldctx);
+ xfree(newctx);
+}
#endif /* WITH_SELINUX */
diff -up openssh-5.2p1/openbsd-compat/port-linux.h.sesftp openssh-5.2p1/openbsd-compat/port-linux.h
--- openssh-5.2p1/openbsd-compat/port-linux.h.sesftp 2008-03-26 21:27:21.000000000 +0100
+++ openssh-5.2p1/openbsd-compat/port-linux.h 2009-08-12 00:29:37.733388083 +0200
@@ -23,6 +23,7 @@
int ssh_selinux_enabled(void);
void ssh_selinux_setup_pty(char *, const char *);
void ssh_selinux_setup_exec_context(char *);
+void ssh_selinux_change_context(const char *);
#endif
#endif /* ! _PORT_LINUX_H */
diff -up openssh-5.2p1/session.c.sesftp openssh-5.2p1/session.c
--- openssh-5.2p1/session.c.sesftp 2009-08-09 10:21:11.586827446 +0200
+++ openssh-5.2p1/session.c 2009-08-09 10:39:30.475622699 +0200
@@ -58,6 +58,9 @@
#include <stdlib.h>
#include <string.h>
#include <unistd.h>
+#ifdef WITH_SELINUX
+#include <selinux/selinux.h>
+#endif
#include "openbsd-compat/sys-queue.h"
#include "xmalloc.h"
@@ -101,6 +104,9 @@
c[sizeof(INTERNAL_SFTP_NAME) - 1] == ' ' || \
c[sizeof(INTERNAL_SFTP_NAME) - 1] == '\t'))
+#ifdef WITH_SELINUX
+#define SFTPD_T "sftpd_t"
+#endif
/* func */
Session *session_new(void);
@@ -1789,6 +1795,10 @@ do_child(Session *s, const char *command
extern int optind, optreset;
int i;
char *p, *args;
+#ifdef WITH_SELINUX
+ int L1, L2;
+ char *c1, *c2, *cx;
+#endif
setproctitle("%s@internal-sftp-server", s->pw->pw_name);
args = xstrdup(command ? command : "sftp-server");
@@ -1798,6 +1808,32 @@ do_child(Session *s, const char *command
--- openssh-5.2p1/session.c.sesftp 2009-08-12 00:29:37.659250161 +0200
+++ openssh-5.2p1/session.c 2009-08-12 00:29:37.729578695 +0200
@@ -1798,6 +1798,9 @@ do_child(Session *s, const char *command
argv[i] = NULL;
optind = optreset = 1;
__progname = argv[0];
+#ifdef WITH_SELINUX
+ if (getcon ((security_context_t *) &c1) < 0) {
+ logit("do_child: getcon failed with %s", strerror (errno));
+ } else {
+ L1 = strlen (c1) + sizeof (SFTPD_T);
+ c2 = xmalloc (L1);
+ if (!(cx = index (c1, ':')))
+ goto badcontext;
+ if (!(cx = index (cx + 1, ':'))) {
+badcontext:
+ logit ("do_child: unparseable context %s", c1);
+ } else {
+ L2 = cx - c1 + 1;
+ memcpy (c2, c1, L2);
+ strlcpy (c2 + L2, SFTPD_T, L1);
+ if ((cx = index (cx + 1, ':')))
+ strlcat (c2, cx, L1);
+ if (setcon (c2) < 0)
+ logit("do_child: setcon failed with %s", strerror (errno));
+
+ }
+ xfree (c1);
+ xfree (c2);
+ }
+ ssh_selinux_change_context("sftpd_t");
+#endif
+
exit(sftp_server_main(i, argv, s->pw));
}

2
openssh.spec
View File

@ -468,7 +468,7 @@ fi
%endif
%changelog
* Mon Auc 31 2009 Jan F. Chadima <jchadima@redhat.com> - 5.2p1-21
* Mon Aug 31 2009 Jan F. Chadima <jchadima@redhat.com> - 5.2p1-21
- rearange selinux patch to be acceptable for upstream
- replace seftp patch by an upstream version