Author: kevans Date: Mon Aug 5 00:08:25 2019 New Revision: 350576 URL: https://svnweb.freebsd.org/changeset/base/350576
Log: ipfw: fix jail option after r348215 r348215 changed jail_getid(3) to validate passed-in jids as active jails (as the function is documented to return -1 if the jail does not exist). This broke the jail option (in some cases?) as the jail historically hasn't needed to exist at the time of rule parsing; jids will get stored and later applied. Fix this caller to attempt to parse *av as a number first and just use it as-is to match historical behavior. jail_getid(3) must still be used in order for name arguments to work, but it's strictly a fallback in case we weren't given a number. Reported and tested by: Ari Suutari <ari stonepile fi> Reviewed by: ae MFC after: 3 days Differential Revision: https://reviews.freebsd.org/D21128 Modified: head/sbin/ipfw/ipfw2.c Modified: head/sbin/ipfw/ipfw2.c ============================================================================== --- head/sbin/ipfw/ipfw2.c Sun Aug 4 21:43:34 2019 (r350575) +++ head/sbin/ipfw/ipfw2.c Mon Aug 5 00:08:25 2019 (r350576) @@ -4674,12 +4674,27 @@ read_options: case TOK_JAIL: NEED1("jail requires argument"); { + char *end; int jid; cmd->opcode = O_JAIL; - jid = jail_getid(*av); - if (jid < 0) - errx(EX_DATAERR, "%s", jail_errmsg); + /* + * If av is a number, then we'll just pass it as-is. If + * it's a name, try to resolve that to a jid. + * + * We save the jail_getid(3) call for a fallback because + * it entails an unconditional trip to the kernel to + * either validate a jid or resolve a name to a jid. + * This specific token doesn't currently require a + * jid to be an active jail, so we save a transition + * by simply using a number that we're given. + */ + jid = strtoul(*av, &end, 10); + if (*end != '\0') { + jid = jail_getid(*av); + if (jid < 0) + errx(EX_DATAERR, "%s", jail_errmsg); + } cmd32->d[0] = (uint32_t)jid; cmd->len |= F_INSN_SIZE(ipfw_insn_u32); av++; _______________________________________________ svn-src-head@freebsd.org mailing list https://lists.freebsd.org/mailman/listinfo/svn-src-head To unsubscribe, send any mail to "svn-src-head-unsubscr...@freebsd.org"
