=================================================================== RCS file: /cvsrepo/anoncvs/cvs/src/usr.bin/ssh/channels.c,v retrieving revision 1.313 retrieving revision 1.314 diff -u -r1.313 -r1.314 --- src/usr.bin/ssh/channels.c 2011/09/10 22:26:34 1.313 +++ src/usr.bin/ssh/channels.c 2011/09/23 00:22:04 1.314 @@ -1,4 +1,4 @@ -/* $OpenBSD: channels.c,v 1.313 2011/09/10 22:26:34 markus Exp $ */ +/* $OpenBSD: channels.c,v 1.314 2011/09/23 00:22:04 dtucker Exp $ */ /* * Author: Tatu Ylonen * Copyright (c) 1995 Tatu Ylonen , Espoo, Finland @@ -121,6 +121,9 @@ /* Number of permitted host/port pair in the array permitted by the admin. */ static int num_adm_permitted_opens = 0; +/* special-case port number meaning allow any port */ +#define FWD_PERMIT_ANY_PORT 0 + /* * If this is true, all opens are permitted. This is the case on the server * on which we have to trust the client anyway, and the user could do @@ -3105,6 +3108,28 @@ printf("\n"); } +/* returns port number, FWD_PERMIT_ANY_PORT or -1 on error */ +int +permitopen_port(const char *p) +{ + int port; + + if (strcmp(p, "*") == 0) + return FWD_PERMIT_ANY_PORT; + if ((port = a2port(p)) > 0) + return port; + return -1; +} + +static int +port_match(u_short allowedport, u_short requestedport) +{ + if (allowedport == FWD_PERMIT_ANY_PORT || + allowedport == requestedport) + return 1; + return 0; +} + /* Try to start non-blocking connect to next host in cctx list */ static int connect_next(struct channel_connect *cctx) @@ -3207,7 +3232,7 @@ for (i = 0; i < num_permitted_opens; i++) { if (permitted_opens[i].host_to_connect != NULL && - permitted_opens[i].listen_port == listen_port) { + port_match(permitted_opens[i].listen_port, listen_port)) { return connect_to( permitted_opens[i].host_to_connect, permitted_opens[i].port_to_connect, ctype, rname); @@ -3228,7 +3253,7 @@ if (!permit) { for (i = 0; i < num_permitted_opens; i++) if (permitted_opens[i].host_to_connect != NULL && - permitted_opens[i].port_to_connect == port && + port_match(permitted_opens[i].port_to_connect, port) && strcmp(permitted_opens[i].host_to_connect, host) == 0) permit = 1; } @@ -3237,7 +3262,7 @@ permit_adm = 0; for (i = 0; i < num_adm_permitted_opens; i++) if (permitted_adm_opens[i].host_to_connect != NULL && - permitted_adm_opens[i].port_to_connect == port && + port_match(permitted_adm_opens[i].port_to_connect, port) && strcmp(permitted_adm_opens[i].host_to_connect, host) == 0) permit_adm = 1;