From owner-svn-src-all@freebsd.org Thu Apr 5 19:45:31 2018 Return-Path: Delivered-To: svn-src-all@mailman.ysv.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2610:1c1:1:606c::19:1]) by mailman.ysv.freebsd.org (Postfix) with ESMTP id C6839F9D904; Thu, 5 Apr 2018 19:45:31 +0000 (UTC) (envelope-from benno@FreeBSD.org) Received: from mxrelay.nyi.freebsd.org (mxrelay.nyi.freebsd.org [IPv6:2610:1c1:1:606c::19:3]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (Client CN "mxrelay.nyi.freebsd.org", Issuer "Let's Encrypt Authority X3" (verified OK)) by mx1.freebsd.org (Postfix) with ESMTPS id 73B6A6D9A4; Thu, 5 Apr 2018 19:45:31 +0000 (UTC) (envelope-from benno@FreeBSD.org) Received: from repo.freebsd.org (repo.freebsd.org [IPv6:2610:1c1:1:6068::e6a:0]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (Client did not present a certificate) by mxrelay.nyi.freebsd.org (Postfix) with ESMTPS id 6E85627198; Thu, 5 Apr 2018 19:45:31 +0000 (UTC) (envelope-from benno@FreeBSD.org) Received: from repo.freebsd.org ([127.0.1.37]) by repo.freebsd.org (8.15.2/8.15.2) with ESMTP id w35JjVN9006987; Thu, 5 Apr 2018 19:45:31 GMT (envelope-from benno@FreeBSD.org) Received: (from benno@localhost) by repo.freebsd.org (8.15.2/8.15.2/Submit) id w35JjVDJ006984; Thu, 5 Apr 2018 19:45:31 GMT (envelope-from benno@FreeBSD.org) Message-Id: <201804051945.w35JjVDJ006984@repo.freebsd.org> X-Authentication-Warning: repo.freebsd.org: benno set sender to benno@FreeBSD.org using -f From: Benno Rice Date: Thu, 5 Apr 2018 19:45:31 +0000 (UTC) To: src-committers@freebsd.org, svn-src-all@freebsd.org, svn-src-head@freebsd.org Subject: svn commit: r332085 - head/stand/common X-SVN-Group: head X-SVN-Commit-Author: benno X-SVN-Commit-Paths: head/stand/common X-SVN-Commit-Revision: 332085 X-SVN-Commit-Repository: base MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit X-BeenThere: svn-src-all@freebsd.org X-Mailman-Version: 2.1.25 Precedence: list List-Id: "SVN commit messages for the entire src tree \(except for " user" and " projects" \)" List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Thu, 05 Apr 2018 19:45:32 -0000 Author: benno Date: Thu Apr 5 19:45:30 2018 New Revision: 332085 URL: https://svnweb.freebsd.org/changeset/base/332085 Log: Add an ISO9660 "partition table" type to loader. When booted via isoboot(8) loader will be handed a disk that simply contains an ISO9660 image. Currently this confuses it greatly. Teach it how to spot that it's in this situation and that ISO9660 has one "partition" covering the whole disk. Reviewed by: imp Sponsored by: iXsystems, Inc. Differential Revision: https://reviews.freebsd.org/D14915 Modified: head/stand/common/disk.c head/stand/common/part.c head/stand/common/part.h Modified: head/stand/common/disk.c ============================================================================== --- head/stand/common/disk.c Thu Apr 5 19:40:46 2018 (r332084) +++ head/stand/common/disk.c Thu Apr 5 19:45:30 2018 (r332085) @@ -270,6 +270,9 @@ disk_open(struct disk_devdesc *dev, uint64_t mediasize dev->d_offset = part.start; od->entrysize = part.end - part.start + 1; } + } else if (ptable_gettype(od->table) == PTABLE_ISO9660) { + dev->d_offset = 0; + od->entrysize = mediasize; } else if (slice >= 0) { /* Try to get information about partition */ if (slice == 0) Modified: head/stand/common/part.c ============================================================================== --- head/stand/common/part.c Thu Apr 5 19:40:46 2018 (r332084) +++ head/stand/common/part.c Thu Apr 5 19:45:30 2018 (r332085) @@ -37,6 +37,8 @@ __FBSDID("$FreeBSD$"); #include #include +#include + #include #include #include @@ -97,6 +99,7 @@ static struct parttypes { { PART_LINUX, "Linux" }, { PART_LINUX_SWAP, "Linux swap" }, { PART_DOS, "DOS/Windows" }, + { PART_ISO9660, "ISO9660" }, }; const char * @@ -603,6 +606,45 @@ out: } #endif /* LOADER_VTOC8_SUPPORT */ +#define cdb2devb(bno) ((bno) * ISO_DEFAULT_BLOCK_SIZE / table->sectorsize) + +static struct ptable * +ptable_iso9660read(struct ptable *table, void *dev, diskread_t dread) +{ + uint8_t *buf; + struct iso_primary_descriptor *vd; + struct pentry *entry; + + buf = malloc(table->sectorsize); + if (buf == NULL) + return (table); + + if (dread(dev, buf, 1, cdb2devb(16)) != 0) { + DEBUG("read failed"); + ptable_close(table); + table = NULL; + goto out; + } + vd = (struct iso_primary_descriptor *)buf; + if (bcmp(vd->id, ISO_STANDARD_ID, sizeof vd->id) != 0) + goto out; + + entry = malloc(sizeof(*entry)); + if (entry == NULL) + goto out; + entry->part.start = 0; + entry->part.end = table->sectors; + entry->part.type = PART_ISO9660; + entry->part.index = 0; + STAILQ_INSERT_TAIL(&table->entries, entry, entry); + + table->type = PTABLE_ISO9660; + +out: + free(buf); + return (table); +} + struct ptable * ptable_open(void *dev, uint64_t sectors, uint16_t sectorsize, diskread_t *dread) @@ -633,6 +675,11 @@ ptable_open(void *dev, uint64_t sectors, uint16_t sect table->sectorsize = sectorsize; table->type = PTABLE_NONE; STAILQ_INIT(&table->entries); + + if (ptable_iso9660read(table, dev, dread) != NULL) { + if (table->type == PTABLE_ISO9660) + goto out; + } #ifdef LOADER_VTOC8_SUPPORT if (be16dec(buf + offsetof(struct vtoc8, magic)) == VTOC_MAGIC) { Modified: head/stand/common/part.h ============================================================================== --- head/stand/common/part.h Thu Apr 5 19:40:46 2018 (r332084) +++ head/stand/common/part.h Thu Apr 5 19:45:30 2018 (r332085) @@ -36,7 +36,8 @@ enum ptable_type { PTABLE_BSD, PTABLE_MBR, PTABLE_GPT, - PTABLE_VTOC8 + PTABLE_VTOC8, + PTABLE_ISO9660 }; enum partition_type { @@ -52,6 +53,7 @@ enum partition_type { PART_LINUX, PART_LINUX_SWAP, PART_DOS, + PART_ISO9660 }; struct ptable_entry {