mirror of https://github.com/postgres/postgres
Sort out getpeereid() and peer auth handling on Windows
The getpeereid() uses have so far been protected by HAVE_UNIX_SOCKETS, so they didn't ever care about Windows support. But in anticipation of Unix-domain socket support on Windows, that needs to be handled differently. Windows doesn't support getpeereid() at this time, so we use the existing not-supported code path. We let configure do its usual thing of picking up the replacement from libpgport, instead of the custom overrides that it was doing before. But then Windows doesn't have struct passwd, so this patch sprinkles some additional #ifdef WIN32 around to make it work. This is similar to existing code that deals with this issue. Reviewed-by: Andrew Dunstan <andrew.dunstan@2ndquadrant.com> Discussion: https://www.postgresql.org/message-id/5974caea-1267-7708-40f2-6009a9d653b0@2ndquadrant.com
This commit is contained in:
Peter Eisentraut
parent
956ef58753
commit
f14413b684
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@ -15685,6 +15685,19 @@ esac
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fi
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ac_fn_c_check_func "$LINENO" "getpeereid" "ac_cv_func_getpeereid"
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if test "x$ac_cv_func_getpeereid" = xyes; then :
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$as_echo "#define HAVE_GETPEEREID 1" >>confdefs.h
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else
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case " $LIBOBJS " in
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*" getpeereid.$ac_objext "* ) ;;
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*) LIBOBJS="$LIBOBJS getpeereid.$ac_objext"
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;;
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esac
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fi
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ac_fn_c_check_func "$LINENO" "getrusage" "ac_cv_func_getrusage"
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if test "x$ac_cv_func_getrusage" = xyes; then :
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$as_echo "#define HAVE_GETRUSAGE 1" >>confdefs.h
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@ -15863,19 +15876,13 @@ $as_echo "$as_me: On $host_os we will use our strtof wrapper." >&6;}
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esac
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case $host_os in
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# Windows uses a specialised env handler
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# and doesn't need a replacement getpeereid because it doesn't use
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# Unix sockets.
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mingw*)
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$as_echo "#define HAVE_UNSETENV 1" >>confdefs.h
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$as_echo "#define HAVE_GETPEEREID 1" >>confdefs.h
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ac_cv_func_unsetenv=yes
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ac_cv_func_getpeereid=yes;;
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;;
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*)
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ac_fn_c_check_func "$LINENO" "unsetenv" "ac_cv_func_unsetenv"
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if test "x$ac_cv_func_unsetenv" = xyes; then :
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@ -15888,19 +15895,6 @@ else
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;;
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esac
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fi
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ac_fn_c_check_func "$LINENO" "getpeereid" "ac_cv_func_getpeereid"
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if test "x$ac_cv_func_getpeereid" = xyes; then :
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$as_echo "#define HAVE_GETPEEREID 1" >>confdefs.h
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else
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case " $LIBOBJS " in
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*" getpeereid.$ac_objext "* ) ;;
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*) LIBOBJS="$LIBOBJS getpeereid.$ac_objext"
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;;
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esac
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fi
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@ -1729,6 +1729,7 @@ AC_REPLACE_FUNCS(m4_normalize([
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explicit_bzero
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fls
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getopt
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getpeereid
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getrusage
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inet_aton
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mkdtemp
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@ -1757,17 +1758,13 @@ case $host_os in
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esac
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case $host_os in
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# Windows uses a specialised env handler
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# and doesn't need a replacement getpeereid because it doesn't use
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# Unix sockets.
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mingw*)
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AC_DEFINE(HAVE_UNSETENV, 1, [Define to 1 because replacement version used.])
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AC_DEFINE(HAVE_GETPEEREID, 1, [Define to 1 because function not required.])
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ac_cv_func_unsetenv=yes
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ac_cv_func_getpeereid=yes;;
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;;
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*)
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AC_REPLACE_FUNCS([unsetenv getpeereid])
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AC_REPLACE_FUNCS([unsetenv])
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;;
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esac
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@ -77,9 +77,7 @@ static int ident_inet(hbaPort *port);
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* Peer authentication
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*----------------------------------------------------------------
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*/
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#ifdef HAVE_UNIX_SOCKETS
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static int auth_peer(hbaPort *port);
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#endif
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/*----------------------------------------------------------------
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@ -559,11 +557,7 @@ ClientAuthentication(Port *port)
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break;
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case uaPeer:
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#ifdef HAVE_UNIX_SOCKETS
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status = auth_peer(port);
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#else
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Assert(false);
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#endif
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break;
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case uaIdent:
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@ -1984,16 +1978,16 @@ ident_inet_done:
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*
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* Iff authorized, return STATUS_OK, otherwise return STATUS_ERROR.
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*/
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#ifdef HAVE_UNIX_SOCKETS
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static int
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auth_peer(hbaPort *port)
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{
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uid_t uid;
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gid_t gid;
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#ifndef WIN32
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struct passwd *pw;
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char *peer_user;
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int ret;
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#endif
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if (getpeereid(port->sock, &uid, &gid) != 0)
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{
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@ -2009,6 +2003,7 @@ auth_peer(hbaPort *port)
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return STATUS_ERROR;
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}
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#ifndef WIN32
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errno = 0; /* clear errno before call */
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pw = getpwuid(uid);
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if (!pw)
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@ -2030,8 +2025,12 @@ auth_peer(hbaPort *port)
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pfree(peer_user);
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return ret;
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#else
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/* should have failed with ENOSYS above */
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Assert(false);
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return STATUS_ERROR;
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#endif
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}
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#endif /* HAVE_UNIX_SOCKETS */
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/*----------------------------------------------------------------
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@ -354,7 +354,7 @@ extern int fls(int mask);
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#define ftello(a) ftell(a)
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#endif
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#if !defined(HAVE_GETPEEREID) && !defined(WIN32)
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#ifndef HAVE_GETPEEREID
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extern int getpeereid(int sock, uid_t *uid, gid_t *gid);
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#endif
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@ -2733,8 +2733,6 @@ keep_going: /* We will come back to here until there is
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char *startpacket;
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int packetlen;
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#ifdef HAVE_UNIX_SOCKETS
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/*
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* Implement requirepeer check, if requested and it's a
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* Unix-domain socket.
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@ -2742,10 +2740,12 @@ keep_going: /* We will come back to here until there is
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if (conn->requirepeer && conn->requirepeer[0] &&
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IS_AF_UNIX(conn->raddr.addr.ss_family))
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{
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#ifndef WIN32
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char pwdbuf[BUFSIZ];
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struct passwd pass_buf;
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struct passwd *pass;
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int passerr;
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#endif
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uid_t uid;
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gid_t gid;
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@ -2766,6 +2766,7 @@ keep_going: /* We will come back to here until there is
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goto error_return;
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}
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#ifndef WIN32
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passerr = pqGetpwuid(uid, &pass_buf, pwdbuf, sizeof(pwdbuf), &pass);
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if (pass == NULL)
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{
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@ -2788,8 +2789,11 @@ keep_going: /* We will come back to here until there is
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conn->requirepeer, pass->pw_name);
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goto error_return;
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}
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#else /* WIN32 */
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/* should have failed with ENOSYS above */
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Assert(false);
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#endif /* WIN32 */
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}
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#endif /* HAVE_UNIX_SOCKETS */
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if (IS_AF_UNIX(conn->raddr.addr.ss_family))
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{
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@ -94,7 +94,7 @@ sub mkvcbuild
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$solution = CreateSolution($vsVersion, $config);
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our @pgportfiles = qw(
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chklocale.c explicit_bzero.c fls.c fseeko.c getrusage.c inet_aton.c random.c
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chklocale.c explicit_bzero.c fls.c fseeko.c getpeereid.c getrusage.c inet_aton.c random.c
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srandom.c getaddrinfo.c gettimeofday.c inet_net_ntop.c kill.c open.c
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erand48.c snprintf.c strlcat.c strlcpy.c dirmod.c noblock.c path.c
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dirent.c dlopen.c getopt.c getopt_long.c
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