X-Git-Url: http://git.annexia.org/?p=libguestfs.git;a=blobdiff_plain;f=src%2Finspect.c;h=70612087841853b76e1b005b90c281f3632d23c6;hp=46c7fe4e168877c826e8d673afd933dc62897d5b;hb=2b0ca7e7b8d369a42a51b1feec72ae8f17257c78;hpb=d72815578f7b8fea9702902d8562430e8a007a46 diff --git a/src/inspect.c b/src/inspect.c index 46c7fe4..7061208 100644 --- a/src/inspect.c +++ b/src/inspect.c @@ -1,5 +1,5 @@ /* libguestfs - * Copyright (C) 2010 Red Hat Inc. + * Copyright (C) 2010-2011 Red Hat Inc. * * This library is free software; you can redistribute it and/or * modify it under the terms of the GNU Lesser General Public @@ -23,8 +23,11 @@ #include #include #include +#include #include #include +#include +#include #ifdef HAVE_PCRE #include @@ -45,1354 +48,81 @@ #if defined(HAVE_PCRE) && defined(HAVE_HIVEX) -/* Compile all the regular expressions once when the shared library is - * loaded. PCRE is thread safe so we're supposedly OK here if - * multiple threads call into the libguestfs API functions below - * simultaneously. - */ -static pcre *re_fedora; -static pcre *re_rhel_old; -static pcre *re_rhel; -static pcre *re_rhel_no_minor; -static pcre *re_major_minor; -static pcre *re_aug_seq; -static pcre *re_xdev; -static pcre *re_first_partition; -static pcre *re_freebsd; -static pcre *re_windows_version; - -static void compile_regexps (void) __attribute__((constructor)); -static void free_regexps (void) __attribute__((destructor)); - -static void -compile_regexps (void) -{ - const char *err; - int offset; - -#define COMPILE(re,pattern,options) \ - do { \ - re = pcre_compile ((pattern), (options), &err, &offset, NULL); \ - if (re == NULL) { \ - ignore_value (write (2, err, strlen (err))); \ - abort (); \ - } \ - } while (0) - - COMPILE (re_fedora, "Fedora release (\\d+)", 0); - COMPILE (re_rhel_old, - "(?:Red Hat Enterprise Linux|CentOS|Scientific Linux).*release (\\d+).*Update (\\d+)", 0); - COMPILE (re_rhel, - "(?:Red Hat Enterprise Linux|CentOS|Scientific Linux).*release (\\d+)\\.(\\d+)", 0); - COMPILE (re_rhel_no_minor, - "(?:Red Hat Enterprise Linux|CentOS|Scientific Linux).*release (\\d+)", 0); - COMPILE (re_major_minor, "(\\d+)\\.(\\d+)", 0); - COMPILE (re_aug_seq, "/\\d+$", 0); - COMPILE (re_xdev, "^/dev/(?:h|s|v|xv)d([a-z]\\d*)$", 0); - COMPILE (re_first_partition, "^/dev/(?:h|s|v)d.1$", 0); - COMPILE (re_freebsd, "^/dev/ad(\\d+)s(\\d+)([a-z])$", 0); - COMPILE (re_windows_version, "^(\\d+)\\.(\\d+)", 0); -} - -static void -free_regexps (void) -{ - pcre_free (re_fedora); - pcre_free (re_rhel_old); - pcre_free (re_rhel); - pcre_free (re_rhel_no_minor); - pcre_free (re_major_minor); - pcre_free (re_aug_seq); - pcre_free (re_xdev); - pcre_free (re_first_partition); - pcre_free (re_freebsd); - pcre_free (re_windows_version); -} - /* The main inspection code. */ -static int check_for_filesystem_on (guestfs_h *g, const char *device); - char ** -guestfs__inspect_os (guestfs_h *g) -{ - /* Remove any information previously stored in the handle. */ - guestfs___free_inspect_info (g); - - if (guestfs_umount_all (g) == -1) - return NULL; - - /* Iterate over all possible devices. Try to mount each - * (read-only). Examine ones which contain filesystems and add that - * information to the handle. - */ - /* Look to see if any devices directly contain filesystems (RHBZ#590167). */ - char **devices; - devices = guestfs_list_devices (g); - if (devices == NULL) - return NULL; - - size_t i; - for (i = 0; devices[i] != NULL; ++i) { - if (check_for_filesystem_on (g, devices[i]) == -1) { - guestfs___free_string_list (devices); - guestfs___free_inspect_info (g); - return NULL; - } - } - guestfs___free_string_list (devices); - - /* Look at all partitions. */ - char **partitions; - partitions = guestfs_list_partitions (g); - if (partitions == NULL) { - guestfs___free_inspect_info (g); - return NULL; - } - - for (i = 0; partitions[i] != NULL; ++i) { - if (check_for_filesystem_on (g, partitions[i]) == -1) { - guestfs___free_string_list (partitions); - guestfs___free_inspect_info (g); - return NULL; - } - } - guestfs___free_string_list (partitions); - - /* Look at all LVs. */ - if (guestfs___feature_available (g, "lvm2")) { - char **lvs; - lvs = guestfs_lvs (g); - if (lvs == NULL) { - guestfs___free_inspect_info (g); - return NULL; - } - - for (i = 0; lvs[i] != NULL; ++i) { - if (check_for_filesystem_on (g, lvs[i]) == -1) { - guestfs___free_string_list (lvs); - guestfs___free_inspect_info (g); - return NULL; - } - } - guestfs___free_string_list (lvs); - } - - /* At this point we have, in the handle, a list of all filesystems - * found and data about each one. Now we assemble the list of - * filesystems which are root devices and return that to the user. - * Fall through to guestfs__inspect_get_roots to do that. - */ - char **ret = guestfs__inspect_get_roots (g); - if (ret == NULL) - guestfs___free_inspect_info (g); - return ret; -} - -/* Find out if 'device' contains a filesystem. If it does, add - * another entry in g->fses. - */ -static int check_filesystem (guestfs_h *g, const char *device); -static int check_linux_root (guestfs_h *g, struct inspect_fs *fs); -static int check_freebsd_root (guestfs_h *g, struct inspect_fs *fs); -static void check_architecture (guestfs_h *g, struct inspect_fs *fs); -static int check_hostname_unix (guestfs_h *g, struct inspect_fs *fs); -static int check_hostname_redhat (guestfs_h *g, struct inspect_fs *fs); -static int check_hostname_freebsd (guestfs_h *g, struct inspect_fs *fs); -static int check_fstab (guestfs_h *g, struct inspect_fs *fs); -static int check_windows_root (guestfs_h *g, struct inspect_fs *fs); -static int check_windows_arch (guestfs_h *g, struct inspect_fs *fs); -static int check_windows_software_registry (guestfs_h *g, struct inspect_fs *fs); -static int check_windows_system_registry (guestfs_h *g, struct inspect_fs *fs); -static char *resolve_windows_path_silently (guestfs_h *g, const char *); -static int extend_fses (guestfs_h *g); -static int parse_unsigned_int (guestfs_h *g, const char *str); -static int add_fstab_entry (guestfs_h *g, struct inspect_fs *fs, - const char *spec, const char *mp); -static char *resolve_fstab_device (guestfs_h *g, const char *spec); -static void check_package_format (guestfs_h *g, struct inspect_fs *fs); -static void check_package_management (guestfs_h *g, struct inspect_fs *fs); -static int download_to_tmp (guestfs_h *g, const char *filename, char *localtmp, int64_t max_size); -static int inspect_with_augeas (guestfs_h *g, struct inspect_fs *fs, const char *filename, int (*f) (guestfs_h *, struct inspect_fs *)); -static char *first_line_of_file (guestfs_h *g, const char *filename); - -static int -check_for_filesystem_on (guestfs_h *g, const char *device) -{ - /* Get vfs-type in order to check if it's a Linux(?) swap device. - * If there's an error we should ignore it, so to do that we have to - * temporarily replace the error handler with a null one. - */ - guestfs_error_handler_cb old_error_cb = g->error_cb; - g->error_cb = NULL; - char *vfs_type = guestfs_vfs_type (g, device); - g->error_cb = old_error_cb; - - int is_swap = vfs_type && STREQ (vfs_type, "swap"); - - if (g->verbose) - fprintf (stderr, "check_for_filesystem_on: %s (%s)\n", - device, vfs_type ? vfs_type : "failed to get vfs type"); - - if (is_swap) { - free (vfs_type); - if (extend_fses (g) == -1) - return -1; - g->fses[g->nr_fses-1].is_swap = 1; - return 0; - } - - /* Try mounting the device. As above, ignore errors. */ - g->error_cb = NULL; - int r = guestfs_mount_ro (g, device, "/"); - if (r == -1 && vfs_type && STREQ (vfs_type, "ufs")) /* Hack for the *BSDs. */ - r = guestfs_mount_vfs (g, "ro,ufstype=ufs2", "ufs", device, "/"); - free (vfs_type); - g->error_cb = old_error_cb; - if (r == -1) - return 0; - - /* Do the rest of the checks. */ - r = check_filesystem (g, device); - - /* Unmount the filesystem. */ - if (guestfs_umount_all (g) == -1) - return -1; - - return r; -} - -static int -check_filesystem (guestfs_h *g, const char *device) -{ - if (extend_fses (g) == -1) - return -1; - - struct inspect_fs *fs = &g->fses[g->nr_fses-1]; - - fs->device = safe_strdup (g, device); - fs->is_mountable = 1; - - /* Optimize some of the tests by avoiding multiple tests of the same thing. */ - int is_dir_etc = guestfs_is_dir (g, "/etc") > 0; - int is_dir_bin = guestfs_is_dir (g, "/bin") > 0; - int is_dir_share = guestfs_is_dir (g, "/share") > 0; - - /* Grub /boot? */ - if (guestfs_is_file (g, "/grub/menu.lst") > 0 || - guestfs_is_file (g, "/grub/grub.conf") > 0) - fs->content = FS_CONTENT_LINUX_BOOT; - /* FreeBSD root? */ - else if (is_dir_etc && - is_dir_bin && - guestfs_is_file (g, "/etc/freebsd-update.conf") > 0 && - guestfs_is_file (g, "/etc/fstab") > 0) { - /* Ignore /dev/sda1 which is a shadow of the real root filesystem - * that is probably /dev/sda5 (see: - * http://www.freebsd.org/doc/handbook/disk-organization.html) - */ - if (match (g, device, re_first_partition)) - return 0; - - fs->is_root = 1; - fs->content = FS_CONTENT_FREEBSD_ROOT; - if (check_freebsd_root (g, fs) == -1) - return -1; - } - /* Linux root? */ - else if (is_dir_etc && - is_dir_bin && - guestfs_is_file (g, "/etc/fstab") > 0) { - fs->is_root = 1; - fs->content = FS_CONTENT_LINUX_ROOT; - if (check_linux_root (g, fs) == -1) - return -1; - } - /* Linux /usr/local? */ - else if (is_dir_etc && - is_dir_bin && - is_dir_share && - guestfs_exists (g, "/local") == 0 && - guestfs_is_file (g, "/etc/fstab") == 0) - fs->content = FS_CONTENT_LINUX_USR_LOCAL; - /* Linux /usr? */ - else if (is_dir_etc && - is_dir_bin && - is_dir_share && - guestfs_exists (g, "/local") > 0 && - guestfs_is_file (g, "/etc/fstab") == 0) - fs->content = FS_CONTENT_LINUX_USR; - /* Linux /var? */ - else if (guestfs_is_dir (g, "/log") > 0 && - guestfs_is_dir (g, "/run") > 0 && - guestfs_is_dir (g, "/spool") > 0) - fs->content = FS_CONTENT_LINUX_VAR; - /* Windows root? */ - else if (guestfs_is_file (g, "/AUTOEXEC.BAT") > 0 || - guestfs_is_file (g, "/autoexec.bat") > 0 || - guestfs_is_dir (g, "/Program Files") > 0 || - guestfs_is_dir (g, "/WINDOWS") > 0 || - guestfs_is_dir (g, "/Windows") > 0 || - guestfs_is_dir (g, "/windows") > 0 || - guestfs_is_dir (g, "/WIN32") > 0 || - guestfs_is_dir (g, "/Win32") > 0 || - guestfs_is_dir (g, "/WINNT") > 0 || - guestfs_is_file (g, "/boot.ini") > 0 || - guestfs_is_file (g, "/ntldr") > 0) { - fs->is_root = 1; - fs->content = FS_CONTENT_WINDOWS_ROOT; - if (check_windows_root (g, fs) == -1) - return -1; - } - - return 0; -} - -/* Set fs->product_name to the first line of the release file. */ -static int -parse_release_file (guestfs_h *g, struct inspect_fs *fs, - const char *release_filename) -{ - fs->product_name = first_line_of_file (g, release_filename); - if (fs->product_name == NULL) - return -1; - return 0; -} - -/* Parse generic MAJOR.MINOR from the fs->product_name string. */ -static int -parse_major_minor (guestfs_h *g, struct inspect_fs *fs) -{ - char *major, *minor; - - if (match2 (g, fs->product_name, re_major_minor, &major, &minor)) { - fs->major_version = parse_unsigned_int (g, major); - free (major); - if (fs->major_version == -1) { - free (minor); - return -1; - } - fs->minor_version = parse_unsigned_int (g, minor); - free (minor); - if (fs->minor_version == -1) - return -1; - } - return 0; -} - -/* Ubuntu has /etc/lsb-release containing: - * DISTRIB_ID=Ubuntu # Distro - * DISTRIB_RELEASE=10.04 # Version - * DISTRIB_CODENAME=lucid - * DISTRIB_DESCRIPTION="Ubuntu 10.04.1 LTS" # Product name - * - * [Ubuntu-derived ...] Linux Mint was found to have this: - * DISTRIB_ID=LinuxMint - * DISTRIB_RELEASE=10 - * DISTRIB_CODENAME=julia - * DISTRIB_DESCRIPTION="Linux Mint 10 Julia" - * Linux Mint also has /etc/linuxmint/info with more information, - * but we can use the LSB file. - * - * Mandriva has: - * LSB_VERSION=lsb-4.0-amd64:lsb-4.0-noarch - * DISTRIB_ID=MandrivaLinux - * DISTRIB_RELEASE=2010.1 - * DISTRIB_CODENAME=Henry_Farman - * DISTRIB_DESCRIPTION="Mandriva Linux 2010.1" - * Mandriva also has a normal release file called /etc/mandriva-release. - */ -static int -parse_lsb_release (guestfs_h *g, struct inspect_fs *fs) -{ - const char *filename = "/etc/lsb-release"; - int64_t size; - char **lines; - size_t i; - int r = 0; - - /* Don't trust guestfs_head_n not to break with very large files. - * Check the file size is something reasonable first. - */ - size = guestfs_filesize (g, filename); - if (size == -1) - /* guestfs_filesize failed and has already set error in handle */ - return -1; - if (size > 1000000) { - error (g, _("size of %s is unreasonably large (%" PRIi64 " bytes)"), - filename, size); - return -1; - } - - lines = guestfs_head_n (g, 10, filename); - if (lines == NULL) - return -1; - - for (i = 0; lines[i] != NULL; ++i) { - if (fs->distro == 0 && - STREQ (lines[i], "DISTRIB_ID=Ubuntu")) { - fs->distro = OS_DISTRO_UBUNTU; - r = 1; - } - else if (fs->distro == 0 && - STREQ (lines[i], "DISTRIB_ID=LinuxMint")) { - fs->distro = OS_DISTRO_LINUX_MINT; - r = 1; - } - else if (fs->distro == 0 && - STREQ (lines[i], "DISTRIB_ID=MandrivaLinux")) { - fs->distro = OS_DISTRO_MANDRIVA; - r = 1; - } - else if (STRPREFIX (lines[i], "DISTRIB_RELEASE=")) { - char *major, *minor; - if (match2 (g, &lines[i][16], re_major_minor, &major, &minor)) { - fs->major_version = parse_unsigned_int (g, major); - free (major); - if (fs->major_version == -1) { - free (minor); - guestfs___free_string_list (lines); - return -1; - } - fs->minor_version = parse_unsigned_int (g, minor); - free (minor); - if (fs->minor_version == -1) { - guestfs___free_string_list (lines); - return -1; - } - } - } - else if (fs->product_name == NULL && - (STRPREFIX (lines[i], "DISTRIB_DESCRIPTION=\"") || - STRPREFIX (lines[i], "DISTRIB_DESCRIPTION='"))) { - size_t len = strlen (lines[i]) - 21 - 1; - fs->product_name = safe_strndup (g, &lines[i][21], len); - r = 1; - } - else if (fs->product_name == NULL && - STRPREFIX (lines[i], "DISTRIB_DESCRIPTION=")) { - size_t len = strlen (lines[i]) - 20; - fs->product_name = safe_strndup (g, &lines[i][20], len); - r = 1; - } - } - - guestfs___free_string_list (lines); - return r; -} - -/* The currently mounted device is known to be a Linux root. Try to - * determine from this the distro, version, etc. Also parse - * /etc/fstab to determine the arrangement of mountpoints and - * associated devices. - */ -static int -check_linux_root (guestfs_h *g, struct inspect_fs *fs) -{ - int r; - - fs->type = OS_TYPE_LINUX; - - if (guestfs_exists (g, "/etc/lsb-release") > 0) { - r = parse_lsb_release (g, fs); - if (r == -1) /* error */ - return -1; - if (r == 1) /* ok - detected the release from this file */ - goto skip_release_checks; - } - - if (guestfs_exists (g, "/etc/redhat-release") > 0) { - fs->distro = OS_DISTRO_REDHAT_BASED; /* Something generic Red Hat-like. */ - - if (parse_release_file (g, fs, "/etc/redhat-release") == -1) - return -1; - - char *major, *minor; - if ((major = match1 (g, fs->product_name, re_fedora)) != NULL) { - fs->distro = OS_DISTRO_FEDORA; - fs->major_version = parse_unsigned_int (g, major); - free (major); - if (fs->major_version == -1) - return -1; - } - else if (match2 (g, fs->product_name, re_rhel_old, &major, &minor) || - match2 (g, fs->product_name, re_rhel, &major, &minor)) { - fs->distro = OS_DISTRO_RHEL; - fs->major_version = parse_unsigned_int (g, major); - free (major); - if (fs->major_version == -1) { - free (minor); - return -1; - } - fs->minor_version = parse_unsigned_int (g, minor); - free (minor); - if (fs->minor_version == -1) - return -1; - } - else if ((major = match1 (g, fs->product_name, re_rhel_no_minor)) != NULL) { - fs->distro = OS_DISTRO_RHEL; - fs->major_version = parse_unsigned_int (g, major); - free (major); - if (fs->major_version == -1) - return -1; - fs->minor_version = 0; - } - } - else if (guestfs_exists (g, "/etc/debian_version") > 0) { - fs->distro = OS_DISTRO_DEBIAN; - - if (parse_release_file (g, fs, "/etc/debian_version") == -1) - return -1; - - if (parse_major_minor (g, fs) == -1) - return -1; - } - else if (guestfs_exists (g, "/etc/pardus-release") > 0) { - fs->distro = OS_DISTRO_PARDUS; - - if (parse_release_file (g, fs, "/etc/pardus-release") == -1) - return -1; - - if (parse_major_minor (g, fs) == -1) - return -1; - } - else if (guestfs_exists (g, "/etc/arch-release") > 0) { - fs->distro = OS_DISTRO_ARCHLINUX; - - /* /etc/arch-release file is empty and I can't see a way to - * determine the actual release or product string. - */ - } - else if (guestfs_exists (g, "/etc/gentoo-release") > 0) { - fs->distro = OS_DISTRO_GENTOO; - - if (parse_release_file (g, fs, "/etc/gentoo-release") == -1) - return -1; - - if (parse_major_minor (g, fs) == -1) - return -1; - } - else if (guestfs_exists (g, "/etc/meego-release") > 0) { - fs->distro = OS_DISTRO_MEEGO; - - if (parse_release_file (g, fs, "/etc/meego-release") == -1) - return -1; - - if (parse_major_minor (g, fs) == -1) - return -1; - } - - skip_release_checks:; - - /* If distro test above was successful, work out the package format. */ - check_package_format (g, fs); - check_package_management (g, fs); - - /* Determine the architecture. */ - check_architecture (g, fs); - - /* We already know /etc/fstab exists because it's part of the test - * for Linux root above. We must now parse this file to determine - * which filesystems are used by the operating system and how they - * are mounted. - */ - if (inspect_with_augeas (g, fs, "/etc/fstab", check_fstab) == -1) - return -1; - - /* Determine hostname. */ - if (check_hostname_unix (g, fs) == -1) - return -1; - - return 0; -} - -/* The currently mounted device is known to be a FreeBSD root. */ -static int -check_freebsd_root (guestfs_h *g, struct inspect_fs *fs) -{ - fs->type = OS_TYPE_FREEBSD; - - /* FreeBSD has no authoritative version file. The version number is - * in /etc/motd, which the system administrator might edit, but - * we'll use that anyway. - */ - - if (guestfs_exists (g, "/etc/motd") > 0) { - if (parse_release_file (g, fs, "/etc/motd") == -1) - return -1; - - if (parse_major_minor (g, fs) == -1) - return -1; - } - - /* Determine the architecture. */ - check_architecture (g, fs); - - /* We already know /etc/fstab exists because it's part of the test above. */ - if (inspect_with_augeas (g, fs, "/etc/fstab", check_fstab) == -1) - return -1; - - /* Determine hostname. */ - if (check_hostname_unix (g, fs) == -1) - return -1; - - return 0; -} - -static void -check_architecture (guestfs_h *g, struct inspect_fs *fs) -{ - const char *binaries[] = - { "/bin/bash", "/bin/ls", "/bin/echo", "/bin/rm", "/bin/sh" }; - size_t i; - - for (i = 0; i < sizeof binaries / sizeof binaries[0]; ++i) { - if (guestfs_is_file (g, binaries[i]) > 0) { - /* Ignore errors from file_architecture call. */ - guestfs_error_handler_cb old_error_cb = g->error_cb; - g->error_cb = NULL; - char *arch = guestfs_file_architecture (g, binaries[i]); - g->error_cb = old_error_cb; - - if (arch) { - /* String will be owned by handle, freed by - * guestfs___free_inspect_info. - */ - fs->arch = arch; - break; - } - } - } -} - -/* Try several methods to determine the hostname from a Linux or - * FreeBSD guest. Note that type and distro have been set, so we can - * use that information to direct the search. - */ -static int -check_hostname_unix (guestfs_h *g, struct inspect_fs *fs) -{ - switch (fs->type) { - case OS_TYPE_LINUX: - /* Red Hat-derived would be in /etc/sysconfig/network, and - * Debian-derived in the file /etc/hostname. Very old Debian and - * SUSE use /etc/HOSTNAME. It's best to just look for each of - * these files in turn, rather than try anything clever based on - * distro. - */ - if (guestfs_is_file (g, "/etc/HOSTNAME")) { - fs->hostname = first_line_of_file (g, "/etc/HOSTNAME"); - if (fs->hostname == NULL) - return -1; - } - else if (guestfs_is_file (g, "/etc/hostname")) { - fs->hostname = first_line_of_file (g, "/etc/hostname"); - if (fs->hostname == NULL) - return -1; - } - else if (guestfs_is_file (g, "/etc/sysconfig/network")) { - if (inspect_with_augeas (g, fs, "/etc/sysconfig/network", - check_hostname_redhat) == -1) - return -1; - } - break; - - case OS_TYPE_FREEBSD: - /* /etc/rc.conf contains the hostname, but there is no Augeas lens - * for this file. - */ - if (guestfs_is_file (g, "/etc/rc.conf")) { - if (check_hostname_freebsd (g, fs) == -1) - return -1; - } - break; - - case OS_TYPE_WINDOWS: /* not here, see check_windows_system_registry */ - case OS_TYPE_UNKNOWN: - default: - /* nothing, keep GCC warnings happy */; - } - - return 0; -} - -/* Parse the hostname from /etc/sysconfig/network. This must be called - * from the inspect_with_augeas wrapper. - */ -static int -check_hostname_redhat (guestfs_h *g, struct inspect_fs *fs) -{ - char *hostname; - - hostname = guestfs_aug_get (g, "/files/etc/sysconfig/network/HOSTNAME"); - if (!hostname) - return -1; - - fs->hostname = hostname; /* freed by guestfs___free_inspect_info */ - return 0; -} - -/* Parse the hostname from /etc/rc.conf. On FreeBSD this file - * contains comments, blank lines and: - * hostname="freebsd8.example.com" - * ifconfig_re0="DHCP" - * keymap="uk.iso" - * sshd_enable="YES" - */ -static int -check_hostname_freebsd (guestfs_h *g, struct inspect_fs *fs) -{ - const char *filename = "/etc/rc.conf"; - int64_t size; - char **lines; - size_t i; - - /* Don't trust guestfs_read_lines not to break with very large files. - * Check the file size is something reasonable first. - */ - size = guestfs_filesize (g, filename); - if (size == -1) - /* guestfs_filesize failed and has already set error in handle */ - return -1; - if (size > 1000000) { - error (g, _("size of %s is unreasonably large (%" PRIi64 " bytes)"), - filename, size); - return -1; - } - - lines = guestfs_read_lines (g, filename); - if (lines == NULL) - return -1; - - for (i = 0; lines[i] != NULL; ++i) { - if (STRPREFIX (lines[i], "hostname=\"") || - STRPREFIX (lines[i], "hostname='")) { - size_t len = strlen (lines[i]) - 10 - 1; - fs->hostname = safe_strndup (g, &lines[i][10], len); - break; - } else if (STRPREFIX (lines[i], "hostname=")) { - size_t len = strlen (lines[i]) - 9; - fs->hostname = safe_strndup (g, &lines[i][9], len); - break; - } - } - - guestfs___free_string_list (lines); - return 0; -} - -static int -check_fstab (guestfs_h *g, struct inspect_fs *fs) -{ - char **lines = guestfs_aug_ls (g, "/files/etc/fstab"); - if (lines == NULL) - return -1; - - if (lines[0] == NULL) { - error (g, _("could not parse /etc/fstab or empty file")); - guestfs___free_string_list (lines); - return -1; - } - - size_t i; - char augpath[256]; - for (i = 0; lines[i] != NULL; ++i) { - /* Ignore comments. Only care about sequence lines which - * match m{/\d+$}. - */ - if (match (g, lines[i], re_aug_seq)) { - snprintf (augpath, sizeof augpath, "%s/spec", lines[i]); - char *spec = guestfs_aug_get (g, augpath); - if (spec == NULL) { - guestfs___free_string_list (lines); - return -1; - } - - snprintf (augpath, sizeof augpath, "%s/file", lines[i]); - char *mp = guestfs_aug_get (g, augpath); - if (mp == NULL) { - guestfs___free_string_list (lines); - free (spec); - return -1; - } - - int r = add_fstab_entry (g, fs, spec, mp); - free (spec); - free (mp); - - if (r == -1) { - guestfs___free_string_list (lines); - return -1; - } - } - } - - guestfs___free_string_list (lines); - return 0; -} - -/* Add a filesystem and possibly a mountpoint entry for - * the root filesystem 'fs'. - * - * 'spec' is the fstab spec field, which might be a device name or a - * pseudodevice or 'UUID=...' or 'LABEL=...'. - * - * 'mp' is the mount point, which could also be 'swap' or 'none'. - */ -static int -add_fstab_entry (guestfs_h *g, struct inspect_fs *fs, - const char *spec, const char *mp) -{ - /* Ignore certain mountpoints. */ - if (STRPREFIX (mp, "/dev/") || - STREQ (mp, "/dev") || - STRPREFIX (mp, "/media/") || - STRPREFIX (mp, "/proc/") || - STREQ (mp, "/proc") || - STRPREFIX (mp, "/selinux/") || - STREQ (mp, "/selinux") || - STRPREFIX (mp, "/sys/") || - STREQ (mp, "/sys")) - return 0; - - /* Ignore /dev/fd (floppy disks) (RHBZ#642929) and CD-ROM drives. */ - if ((STRPREFIX (spec, "/dev/fd") && c_isdigit (spec[7])) || - STREQ (spec, "/dev/floppy") || - STREQ (spec, "/dev/cdrom")) - return 0; - - /* Resolve UUID= and LABEL= to the actual device. */ - char *device = NULL; - if (STRPREFIX (spec, "UUID=")) - device = guestfs_findfs_uuid (g, &spec[5]); - else if (STRPREFIX (spec, "LABEL=")) - device = guestfs_findfs_label (g, &spec[6]); - /* Ignore "/.swap" (Pardus) and pseudo-devices like "tmpfs". */ - else if (STRPREFIX (spec, "/dev/")) - /* Resolve guest block device names. */ - device = resolve_fstab_device (g, spec); - - /* If we haven't resolved the device successfully by this point, - * we don't care, just ignore it. - */ - if (device == NULL) - return 0; - - char *mountpoint = safe_strdup (g, mp); - - /* Add this to the fstab entry in 'fs'. - * Note these are further filtered by guestfs_inspect_get_mountpoints - * and guestfs_inspect_get_filesystems. - */ - size_t n = fs->nr_fstab + 1; - struct inspect_fstab_entry *p; - - p = realloc (fs->fstab, n * sizeof (struct inspect_fstab_entry)); - if (p == NULL) { - perrorf (g, "realloc"); - free (device); - free (mountpoint); - return -1; - } - - fs->fstab = p; - fs->nr_fstab = n; - - /* These are owned by the handle and freed by guestfs___free_inspect_info. */ - fs->fstab[n-1].device = device; - fs->fstab[n-1].mountpoint = mountpoint; - - if (g->verbose) - fprintf (stderr, "fstab: device=%s mountpoint=%s\n", device, mountpoint); - - return 0; -} - -/* Resolve block device name to the libguestfs device name, eg. - * /dev/xvdb1 => /dev/vdb1; and /dev/mapper/VG-LV => /dev/VG/LV. This - * assumes that disks were added in the same order as they appear to - * the real VM, which is a reasonable assumption to make. Return - * anything we don't recognize unchanged. - */ -static char * -resolve_fstab_device (guestfs_h *g, const char *spec) -{ - char *a1; - char *device = NULL; - char *bsddisk, *bsdslice, *bsdpart; - - if (STRPREFIX (spec, "/dev/mapper/")) { - /* LVM2 does some strange munging on /dev/mapper paths for VGs and - * LVs which contain '-' character: - * - * > lvcreate LV--test VG--test 32 - * > debug ls /dev/mapper - * VG----test-LV----test - * - * This makes it impossible to reverse those paths directly, so - * we have implemented lvm_canonical_lv_name in the daemon. - */ - device = guestfs_lvm_canonical_lv_name (g, spec); - } - else if ((a1 = match1 (g, spec, re_xdev)) != NULL) { - char **devices = guestfs_list_devices (g); - if (devices == NULL) - return NULL; - - size_t count; - for (count = 0; devices[count] != NULL; count++) - ; - - size_t i = a1[0] - 'a'; /* a1[0] is always [a-z] because of regex. */ - if (i < count) { - size_t len = strlen (devices[i]) + strlen (a1) + 16; - device = safe_malloc (g, len); - snprintf (device, len, "%s%s", devices[i], &a1[1]); - } - - free (a1); - guestfs___free_string_list (devices); - } - else if (match3 (g, spec, re_freebsd, &bsddisk, &bsdslice, &bsdpart)) { - /* FreeBSD disks are organized quite differently. See: - * http://www.freebsd.org/doc/handbook/disk-organization.html - * FreeBSD "partitions" are exposed as quasi-extended partitions - * numbered from 5 in Linux. I have no idea what happens when you - * have multiple "slices" (the FreeBSD term for MBR partitions). - */ - int disk = parse_unsigned_int (g, bsddisk); - int slice = parse_unsigned_int (g, bsdslice); - int part = bsdpart[0] - 'a' /* counting from 0 */; - free (bsddisk); - free (bsdslice); - free (bsdpart); - - if (disk == -1 || disk > 26 || - slice <= 0 || slice > 1 /* > 4 .. see comment above */ || - part < 0 || part >= 26) - goto out; - - device = safe_asprintf (g, "/dev/sd%c%d", disk + 'a', part + 5); - } - - out: - /* Didn't match device pattern, return original spec unchanged. */ - if (device == NULL) - device = safe_strdup (g, spec); - - return device; -} - -/* XXX Handling of boot.ini in the Perl version was pretty broken. It - * essentially didn't do anything for modern Windows guests. - * Therefore I've omitted all that code. - */ -static int -check_windows_root (guestfs_h *g, struct inspect_fs *fs) -{ - fs->type = OS_TYPE_WINDOWS; - fs->distro = OS_DISTRO_WINDOWS; - - /* Try to find Windows systemroot using some common locations. */ - const char *systemroots[] = - { "/windows", "/winnt", "/win32", "/win" }; - size_t i; - char *systemroot = NULL; - for (i = 0; - systemroot == NULL && i < sizeof systemroots / sizeof systemroots[0]; - ++i) { - systemroot = resolve_windows_path_silently (g, systemroots[i]); - } - - if (!systemroot) { - error (g, _("cannot resolve Windows %%SYSTEMROOT%%")); - return -1; - } - - if (g->verbose) - fprintf (stderr, "windows %%SYSTEMROOT%% = %s", systemroot); - - /* Freed by guestfs___free_inspect_info. */ - fs->windows_systemroot = systemroot; - - if (check_windows_arch (g, fs) == -1) - return -1; - - /* Product name and version. */ - if (check_windows_software_registry (g, fs) == -1) - return -1; - - check_package_format (g, fs); - check_package_management (g, fs); - - /* Hostname. */ - if (check_windows_system_registry (g, fs) == -1) - return -1; - - return 0; -} - -static int -check_windows_arch (guestfs_h *g, struct inspect_fs *fs) -{ - size_t len = strlen (fs->windows_systemroot) + 32; - char cmd_exe[len]; - snprintf (cmd_exe, len, "%s/system32/cmd.exe", fs->windows_systemroot); - - char *cmd_exe_path = resolve_windows_path_silently (g, cmd_exe); - if (!cmd_exe_path) - return 0; - - char *arch = guestfs_file_architecture (g, cmd_exe_path); - free (cmd_exe_path); - - if (arch) - fs->arch = arch; /* freed by guestfs___free_inspect_info */ - - return 0; -} - -/* At the moment, pull just the ProductName and version numbers from - * the registry. In future there is a case for making many more - * registry fields available to callers. - */ -static int -check_windows_software_registry (guestfs_h *g, struct inspect_fs *fs) -{ - TMP_TEMPLATE_ON_STACK (software_local); - - size_t len = strlen (fs->windows_systemroot) + 64; - char software[len]; - snprintf (software, len, "%s/system32/config/software", - fs->windows_systemroot); - - char *software_path = resolve_windows_path_silently (g, software); - if (!software_path) - /* If the software hive doesn't exist, just accept that we cannot - * find product_name etc. - */ - return 0; - - int ret = -1; - hive_h *h = NULL; - hive_value_h *values = NULL; - - if (download_to_tmp (g, software_path, software_local, 100000000) == -1) - goto out; - - h = hivex_open (software_local, g->verbose ? HIVEX_OPEN_VERBOSE : 0); - if (h == NULL) { - perrorf (g, "hivex_open"); - goto out; - } - - hive_node_h node = hivex_root (h); - const char *hivepath[] = - { "Microsoft", "Windows NT", "CurrentVersion" }; - size_t i; - for (i = 0; - node != 0 && i < sizeof hivepath / sizeof hivepath[0]; - ++i) { - node = hivex_node_get_child (h, node, hivepath[i]); - } - - if (node == 0) { - perrorf (g, "hivex: cannot locate HKLM\\SOFTWARE\\Microsoft\\Windows NT\\CurrentVersion"); - goto out; - } - - values = hivex_node_values (h, node); - - for (i = 0; values[i] != 0; ++i) { - char *key = hivex_value_key (h, values[i]); - if (key == NULL) { - perrorf (g, "hivex_value_key"); - goto out; - } - - if (STRCASEEQ (key, "ProductName")) { - fs->product_name = hivex_value_string (h, values[i]); - if (!fs->product_name) { - perrorf (g, "hivex_value_string"); - free (key); - goto out; - } - } - else if (STRCASEEQ (key, "CurrentVersion")) { - char *version = hivex_value_string (h, values[i]); - if (!version) { - perrorf (g, "hivex_value_string"); - free (key); - goto out; - } - char *major, *minor; - if (match2 (g, version, re_windows_version, &major, &minor)) { - fs->major_version = parse_unsigned_int (g, major); - free (major); - if (fs->major_version == -1) { - free (minor); - free (key); - free (version); - goto out; - } - fs->minor_version = parse_unsigned_int (g, minor); - free (minor); - if (fs->minor_version == -1) { - free (key); - free (version); - goto out; - } - } - - free (version); - } - - free (key); - } - - ret = 0; - - out: - if (h) hivex_close (h); - free (values); - free (software_path); - - /* Free up the temporary file. */ - unlink (software_local); -#undef software_local_len - - return ret; -} - -static int -check_windows_system_registry (guestfs_h *g, struct inspect_fs *fs) -{ - TMP_TEMPLATE_ON_STACK (system_local); - - size_t len = strlen (fs->windows_systemroot) + 64; - char system[len]; - snprintf (system, len, "%s/system32/config/system", - fs->windows_systemroot); - - char *system_path = resolve_windows_path_silently (g, system); - if (!system_path) - /* If the system hive doesn't exist, just accept that we cannot - * find hostname etc. - */ - return 0; - - int ret = -1; - hive_h *h = NULL; - hive_value_h *values = NULL; - - if (download_to_tmp (g, system_path, system_local, 100000000) == -1) - goto out; - - h = hivex_open (system_local, g->verbose ? HIVEX_OPEN_VERBOSE : 0); - if (h == NULL) { - perrorf (g, "hivex_open"); - goto out; - } - - hive_node_h node = hivex_root (h); - /* XXX Don't hard-code ControlSet001. The current control set would - * be another good thing to expose up through the inspection API. - */ - const char *hivepath[] = - { "ControlSet001", "Services", "Tcpip", "Parameters" }; - size_t i; - for (i = 0; - node != 0 && i < sizeof hivepath / sizeof hivepath[0]; - ++i) { - node = hivex_node_get_child (h, node, hivepath[i]); - } - - if (node == 0) { - perrorf (g, "hivex: cannot locate HKLM\\SYSTEM\\ControlSet001\\Services\\Tcpip\\Parameters"); - goto out; - } - - values = hivex_node_values (h, node); - - for (i = 0; values[i] != 0; ++i) { - char *key = hivex_value_key (h, values[i]); - if (key == NULL) { - perrorf (g, "hivex_value_key"); - goto out; - } - - if (STRCASEEQ (key, "Hostname")) { - fs->hostname = hivex_value_string (h, values[i]); - if (!fs->hostname) { - perrorf (g, "hivex_value_string"); - free (key); - goto out; - } - } - /* many other interesting fields here ... */ - - free (key); - } - - ret = 0; - - out: - if (h) hivex_close (h); - free (values); - free (system_path); - - /* Free up the temporary file. */ - unlink (system_local); -#undef system_local_len - - return ret; -} - -static char * -resolve_windows_path_silently (guestfs_h *g, const char *path) -{ - guestfs_error_handler_cb old_error_cb = g->error_cb; - g->error_cb = NULL; - char *ret = guestfs_case_sensitive_path (g, path); - g->error_cb = old_error_cb; - return ret; -} - -static int -extend_fses (guestfs_h *g) -{ - size_t n = g->nr_fses + 1; - struct inspect_fs *p; - - p = realloc (g->fses, n * sizeof (struct inspect_fs)); - if (p == NULL) { - perrorf (g, "realloc"); - return -1; - } - - g->fses = p; - g->nr_fses = n; - - memset (&g->fses[n-1], 0, sizeof (struct inspect_fs)); - - return 0; -} - -/* Parse small, unsigned ints, as used in version numbers. */ -static int -parse_unsigned_int (guestfs_h *g, const char *str) -{ - long ret; - int r = xstrtol (str, NULL, 10, &ret, ""); - if (r != LONGINT_OK) { - error (g, _("could not parse integer in version number: %s"), str); - return -1; - } - return ret; -} - -/* At the moment, package format and package management is just a - * simple function of the distro and major_version fields, so these - * can never return an error. We might be cleverer in future. - */ -static void -check_package_format (guestfs_h *g, struct inspect_fs *fs) +guestfs__inspect_os (guestfs_h *g) { - switch (fs->distro) { - case OS_DISTRO_FEDORA: - case OS_DISTRO_MEEGO: - case OS_DISTRO_REDHAT_BASED: - case OS_DISTRO_RHEL: - case OS_DISTRO_MANDRIVA: - fs->package_format = OS_PACKAGE_FORMAT_RPM; - break; + /* Remove any information previously stored in the handle. */ + guestfs___free_inspect_info (g); - case OS_DISTRO_DEBIAN: - case OS_DISTRO_UBUNTU: - case OS_DISTRO_LINUX_MINT: - fs->package_format = OS_PACKAGE_FORMAT_DEB; - break; + if (guestfs_umount_all (g) == -1) + return NULL; - case OS_DISTRO_ARCHLINUX: - fs->package_format = OS_PACKAGE_FORMAT_PACMAN; - break; - case OS_DISTRO_GENTOO: - fs->package_format = OS_PACKAGE_FORMAT_EBUILD; - break; - case OS_DISTRO_PARDUS: - fs->package_format = OS_PACKAGE_FORMAT_PISI; - break; + /* Iterate over all possible devices. Try to mount each + * (read-only). Examine ones which contain filesystems and add that + * information to the handle. + */ + /* Look to see if any devices directly contain filesystems (RHBZ#590167). */ + char **devices; + devices = guestfs_list_devices (g); + if (devices == NULL) + return NULL; - case OS_DISTRO_WINDOWS: - case OS_DISTRO_UNKNOWN: - default: - fs->package_format = OS_PACKAGE_FORMAT_UNKNOWN; - break; + size_t i; + for (i = 0; devices[i] != NULL; ++i) { + if (guestfs___check_for_filesystem_on (g, devices[i], 1, 0) == -1) { + guestfs___free_string_list (devices); + guestfs___free_inspect_info (g); + return NULL; + } } -} - -static void -check_package_management (guestfs_h *g, struct inspect_fs *fs) -{ - switch (fs->distro) { - case OS_DISTRO_FEDORA: - case OS_DISTRO_MEEGO: - fs->package_management = OS_PACKAGE_MANAGEMENT_YUM; - break; - - case OS_DISTRO_REDHAT_BASED: - case OS_DISTRO_RHEL: - if (fs->major_version >= 5) - fs->package_management = OS_PACKAGE_MANAGEMENT_YUM; - else - fs->package_management = OS_PACKAGE_MANAGEMENT_UP2DATE; - break; - - case OS_DISTRO_DEBIAN: - case OS_DISTRO_UBUNTU: - case OS_DISTRO_LINUX_MINT: - fs->package_management = OS_PACKAGE_MANAGEMENT_APT; - break; - - case OS_DISTRO_ARCHLINUX: - fs->package_management = OS_PACKAGE_MANAGEMENT_PACMAN; - break; - case OS_DISTRO_GENTOO: - fs->package_management = OS_PACKAGE_MANAGEMENT_PORTAGE; - break; - case OS_DISTRO_PARDUS: - fs->package_management = OS_PACKAGE_MANAGEMENT_PISI; - break; - case OS_DISTRO_MANDRIVA: - fs->package_management = OS_PACKAGE_MANAGEMENT_URPMI; - break; + guestfs___free_string_list (devices); - case OS_DISTRO_WINDOWS: - case OS_DISTRO_UNKNOWN: - default: - fs->package_management = OS_PACKAGE_MANAGEMENT_UNKNOWN; - break; + /* Look at all partitions. */ + char **partitions; + partitions = guestfs_list_partitions (g); + if (partitions == NULL) { + guestfs___free_inspect_info (g); + return NULL; } -} -static struct inspect_fs * -search_for_root (guestfs_h *g, const char *root) -{ - if (g->nr_fses == 0) { - error (g, _("no inspection data: call guestfs_inspect_os first")); - return NULL; + for (i = 0; partitions[i] != NULL; ++i) { + if (guestfs___check_for_filesystem_on (g, partitions[i], 0, i+1) == -1) { + guestfs___free_string_list (partitions); + guestfs___free_inspect_info (g); + return NULL; + } } + guestfs___free_string_list (partitions); - size_t i; - struct inspect_fs *fs; - for (i = 0; i < g->nr_fses; ++i) { - fs = &g->fses[i]; - if (fs->is_root && STREQ (root, fs->device)) - return fs; + /* Look at all LVs. */ + if (guestfs___feature_available (g, "lvm2")) { + char **lvs; + lvs = guestfs_lvs (g); + if (lvs == NULL) { + guestfs___free_inspect_info (g); + return NULL; + } + + for (i = 0; lvs[i] != NULL; ++i) { + if (guestfs___check_for_filesystem_on (g, lvs[i], 0, 0) == -1) { + guestfs___free_string_list (lvs); + guestfs___free_inspect_info (g); + return NULL; + } + } + guestfs___free_string_list (lvs); } - error (g, _("%s: root device not found: only call this function with a root device previously returned by guestfs_inspect_os"), - root); - return NULL; + /* At this point we have, in the handle, a list of all filesystems + * found and data about each one. Now we assemble the list of + * filesystems which are root devices and return that to the user. + * Fall through to guestfs__inspect_get_roots to do that. + */ + char **ret = guestfs__inspect_get_roots (g); + if (ret == NULL) + guestfs___free_inspect_info (g); + return ret; } char ** @@ -1429,7 +159,7 @@ guestfs__inspect_get_roots (guestfs_h *g) char * guestfs__inspect_get_type (guestfs_h *g, const char *root) { - struct inspect_fs *fs = search_for_root (g, root); + struct inspect_fs *fs = guestfs___search_for_root (g, root); if (!fs) return NULL; @@ -1447,7 +177,7 @@ guestfs__inspect_get_type (guestfs_h *g, const char *root) char * guestfs__inspect_get_arch (guestfs_h *g, const char *root) { - struct inspect_fs *fs = search_for_root (g, root); + struct inspect_fs *fs = guestfs___search_for_root (g, root); if (!fs) return NULL; @@ -1457,13 +187,14 @@ guestfs__inspect_get_arch (guestfs_h *g, const char *root) char * guestfs__inspect_get_distro (guestfs_h *g, const char *root) { - struct inspect_fs *fs = search_for_root (g, root); + struct inspect_fs *fs = guestfs___search_for_root (g, root); if (!fs) return NULL; char *ret; switch (fs->distro) { case OS_DISTRO_ARCHLINUX: ret = safe_strdup (g, "archlinux"); break; + case OS_DISTRO_CENTOS: ret = safe_strdup (g, "centos"); break; case OS_DISTRO_DEBIAN: ret = safe_strdup (g, "debian"); break; case OS_DISTRO_FEDORA: ret = safe_strdup (g, "fedora"); break; case OS_DISTRO_GENTOO: ret = safe_strdup (g, "gentoo"); break; @@ -1473,6 +204,8 @@ guestfs__inspect_get_distro (guestfs_h *g, const char *root) case OS_DISTRO_PARDUS: ret = safe_strdup (g, "pardus"); break; case OS_DISTRO_REDHAT_BASED: ret = safe_strdup (g, "redhat-based"); break; case OS_DISTRO_RHEL: ret = safe_strdup (g, "rhel"); break; + case OS_DISTRO_SCIENTIFIC_LINUX: ret = safe_strdup (g, "scientificlinux"); break; + case OS_DISTRO_SLACKWARE: ret = safe_strdup (g, "slackware"); break; case OS_DISTRO_WINDOWS: ret = safe_strdup (g, "windows"); break; case OS_DISTRO_UBUNTU: ret = safe_strdup (g, "ubuntu"); break; case OS_DISTRO_UNKNOWN: default: ret = safe_strdup (g, "unknown"); break; @@ -1484,7 +217,7 @@ guestfs__inspect_get_distro (guestfs_h *g, const char *root) int guestfs__inspect_get_major_version (guestfs_h *g, const char *root) { - struct inspect_fs *fs = search_for_root (g, root); + struct inspect_fs *fs = guestfs___search_for_root (g, root); if (!fs) return -1; @@ -1494,7 +227,7 @@ guestfs__inspect_get_major_version (guestfs_h *g, const char *root) int guestfs__inspect_get_minor_version (guestfs_h *g, const char *root) { - struct inspect_fs *fs = search_for_root (g, root); + struct inspect_fs *fs = guestfs___search_for_root (g, root); if (!fs) return -1; @@ -1504,7 +237,7 @@ guestfs__inspect_get_minor_version (guestfs_h *g, const char *root) char * guestfs__inspect_get_product_name (guestfs_h *g, const char *root) { - struct inspect_fs *fs = search_for_root (g, root); + struct inspect_fs *fs = guestfs___search_for_root (g, root); if (!fs) return NULL; @@ -1512,732 +245,345 @@ guestfs__inspect_get_product_name (guestfs_h *g, const char *root) } char * -guestfs__inspect_get_windows_systemroot (guestfs_h *g, const char *root) +guestfs__inspect_get_product_variant (guestfs_h *g, const char *root) { - struct inspect_fs *fs = search_for_root (g, root); + struct inspect_fs *fs = guestfs___search_for_root (g, root); if (!fs) return NULL; - if (!fs->windows_systemroot) { - error (g, _("not a Windows guest, or systemroot could not be determined")); - return NULL; - } - - return safe_strdup (g, fs->windows_systemroot); + return safe_strdup (g, fs->product_variant ? : "unknown"); } -char ** -guestfs__inspect_get_mountpoints (guestfs_h *g, const char *root) +char * +guestfs__inspect_get_windows_systemroot (guestfs_h *g, const char *root) { - struct inspect_fs *fs = search_for_root (g, root); + struct inspect_fs *fs = guestfs___search_for_root (g, root); if (!fs) return NULL; - char **ret; - - /* If no fstab information (Windows) return just the root. */ - if (fs->nr_fstab == 0) { - ret = calloc (3, sizeof (char *)); - ret[0] = safe_strdup (g, "/"); - ret[1] = safe_strdup (g, root); - ret[2] = NULL; - return ret; - } - -#define CRITERION fs->fstab[i].mountpoint[0] == '/' - size_t i, count = 0; - for (i = 0; i < fs->nr_fstab; ++i) - if (CRITERION) - count++; - - /* Hashtables have 2N+1 entries. */ - ret = calloc (2*count+1, sizeof (char *)); - if (ret == NULL) { - perrorf (g, "calloc"); + if (!fs->windows_systemroot) { + error (g, _("not a Windows guest, or systemroot could not be determined")); return NULL; } - count = 0; - for (i = 0; i < fs->nr_fstab; ++i) - if (CRITERION) { - ret[2*count] = safe_strdup (g, fs->fstab[i].mountpoint); - ret[2*count+1] = safe_strdup (g, fs->fstab[i].device); - count++; - } -#undef CRITERION - - return ret; + return safe_strdup (g, fs->windows_systemroot); } -char ** -guestfs__inspect_get_filesystems (guestfs_h *g, const char *root) +char * +guestfs__inspect_get_windows_current_control_set (guestfs_h *g, + const char *root) { - struct inspect_fs *fs = search_for_root (g, root); + struct inspect_fs *fs = guestfs___search_for_root (g, root); if (!fs) return NULL; - char **ret; - - /* If no fstab information (Windows) return just the root. */ - if (fs->nr_fstab == 0) { - ret = calloc (2, sizeof (char *)); - ret[0] = safe_strdup (g, root); - ret[1] = NULL; - return ret; - } - - ret = calloc (fs->nr_fstab + 1, sizeof (char *)); - if (ret == NULL) { - perrorf (g, "calloc"); + if (!fs->windows_current_control_set) { + error (g, _("not a Windows guest, or CurrentControlSet could not be determined")); return NULL; } - size_t i; - for (i = 0; i < fs->nr_fstab; ++i) - ret[i] = safe_strdup (g, fs->fstab[i].device); - - return ret; + return safe_strdup (g, fs->windows_current_control_set); } char * -guestfs__inspect_get_package_format (guestfs_h *g, const char *root) +guestfs__inspect_get_format (guestfs_h *g, const char *root) { - struct inspect_fs *fs = search_for_root (g, root); + struct inspect_fs *fs = guestfs___search_for_root (g, root); if (!fs) return NULL; char *ret; - switch (fs->package_format) { - case OS_PACKAGE_FORMAT_RPM: ret = safe_strdup (g, "rpm"); break; - case OS_PACKAGE_FORMAT_DEB: ret = safe_strdup (g, "deb"); break; - case OS_PACKAGE_FORMAT_PACMAN: ret = safe_strdup (g, "pacman"); break; - case OS_PACKAGE_FORMAT_EBUILD: ret = safe_strdup (g, "ebuild"); break; - case OS_PACKAGE_FORMAT_PISI: ret = safe_strdup (g, "pisi"); break; - case OS_PACKAGE_FORMAT_UNKNOWN: - default: - ret = safe_strdup (g, "unknown"); - break; + switch (fs->format) { + case OS_FORMAT_INSTALLED: ret = safe_strdup (g, "installed"); break; + case OS_FORMAT_INSTALLER: ret = safe_strdup (g, "installer"); break; + case OS_FORMAT_UNKNOWN: default: ret = safe_strdup (g, "unknown"); break; } return ret; } -char * -guestfs__inspect_get_package_management (guestfs_h *g, const char *root) +int +guestfs__inspect_is_live (guestfs_h *g, const char *root) { - struct inspect_fs *fs = search_for_root (g, root); + struct inspect_fs *fs = guestfs___search_for_root (g, root); if (!fs) - return NULL; - - char *ret; - switch (fs->package_management) { - case OS_PACKAGE_MANAGEMENT_YUM: ret = safe_strdup (g, "yum"); break; - case OS_PACKAGE_MANAGEMENT_UP2DATE: ret = safe_strdup (g, "up2date"); break; - case OS_PACKAGE_MANAGEMENT_APT: ret = safe_strdup (g, "apt"); break; - case OS_PACKAGE_MANAGEMENT_PACMAN: ret = safe_strdup (g, "pacman"); break; - case OS_PACKAGE_MANAGEMENT_PORTAGE: ret = safe_strdup (g, "portage"); break; - case OS_PACKAGE_MANAGEMENT_PISI: ret = safe_strdup (g, "pisi"); break; - case OS_PACKAGE_MANAGEMENT_URPMI: ret = safe_strdup (g, "urpmi"); break; - case OS_PACKAGE_MANAGEMENT_UNKNOWN: - default: - ret = safe_strdup (g, "unknown"); - break; - } + return -1; - return ret; + return fs->is_live_disk; } -char * -guestfs__inspect_get_hostname (guestfs_h *g, const char *root) +int +guestfs__inspect_is_netinst (guestfs_h *g, const char *root) { - struct inspect_fs *fs = search_for_root (g, root); + struct inspect_fs *fs = guestfs___search_for_root (g, root); if (!fs) - return NULL; + return -1; - return safe_strdup (g, fs->hostname ? : "unknown"); + return fs->is_netinst_disk; } -#ifdef DB_DUMP -static struct guestfs_application_list *list_applications_rpm (guestfs_h *g, struct inspect_fs *fs); -#endif -static struct guestfs_application_list *list_applications_deb (guestfs_h *g, struct inspect_fs *fs); -static struct guestfs_application_list *list_applications_windows (guestfs_h *g, struct inspect_fs *fs); -static void add_application (guestfs_h *g, struct guestfs_application_list *, const char *name, const char *display_name, int32_t epoch, const char *version, const char *release, const char *install_path, const char *publisher, const char *url, const char *description); -static void sort_applications (struct guestfs_application_list *); - -/* Unlike the simple inspect-get-* calls, this one assumes that the - * disks are mounted up, and reads files from the mounted disks. - */ -struct guestfs_application_list * -guestfs__inspect_list_applications (guestfs_h *g, const char *root) +int +guestfs__inspect_is_multipart (guestfs_h *g, const char *root) { - struct inspect_fs *fs = search_for_root (g, root); + struct inspect_fs *fs = guestfs___search_for_root (g, root); if (!fs) - return NULL; - - struct guestfs_application_list *ret = NULL; - - switch (fs->type) { - case OS_TYPE_LINUX: - switch (fs->package_format) { - case OS_PACKAGE_FORMAT_RPM: -#ifdef DB_DUMP - ret = list_applications_rpm (g, fs); - if (ret == NULL) - return NULL; -#endif - break; - - case OS_PACKAGE_FORMAT_DEB: - ret = list_applications_deb (g, fs); - if (ret == NULL) - return NULL; - break; - - case OS_PACKAGE_FORMAT_PACMAN: - case OS_PACKAGE_FORMAT_EBUILD: - case OS_PACKAGE_FORMAT_PISI: - case OS_PACKAGE_FORMAT_UNKNOWN: - default: - /* nothing - keep GCC happy */; - } - break; - - case OS_TYPE_WINDOWS: - ret = list_applications_windows (g, fs); - if (ret == NULL) - return NULL; - break; - - case OS_TYPE_FREEBSD: - case OS_TYPE_UNKNOWN: - default: - /* nothing - keep GCC happy */; - } - - if (ret == NULL) { - /* Don't know how to do inspection. Not an error, return an - * empty list. - */ - ret = safe_malloc (g, sizeof *ret); - ret->len = 0; - ret->val = NULL; - } - - sort_applications (ret); + return -1; - return ret; + return fs->is_multipart_disk; } -#ifdef DB_DUMP -static struct guestfs_application_list * -list_applications_rpm (guestfs_h *g, struct inspect_fs *fs) +char ** +guestfs__inspect_get_mountpoints (guestfs_h *g, const char *root) { - TMP_TEMPLATE_ON_STACK (tmpfile); - - if (download_to_tmp (g, "/var/lib/rpm/Name", tmpfile, 10000000) == -1) + struct inspect_fs *fs = guestfs___search_for_root (g, root); + if (!fs) return NULL; - struct guestfs_application_list *apps = NULL, *ret = NULL; -#define cmd_len (strlen (tmpfile) + 64) - char cmd[cmd_len]; - FILE *pp = NULL; - char line[1024]; - size_t len; - - snprintf (cmd, cmd_len, DB_DUMP " -p '%s'", tmpfile); - - if (g->verbose) - fprintf (stderr, "list_applications_rpm: %s\n", cmd); - - pp = popen (cmd, "r"); - if (pp == NULL) { - perrorf (g, "popen: %s", cmd); - goto out; - } - - /* Ignore everything to end-of-header marker. */ - for (;;) { - if (fgets (line, sizeof line, pp) == NULL) { - error (g, _("unexpected end of output from db_dump command")); - goto out; - } - - len = strlen (line); - if (len > 0 && line[len-1] == '\n') { - line[len-1] = '\0'; - len--; - } + char **ret; - if (STREQ (line, "HEADER=END")) - break; + /* If no fstab information (Windows) return just the root. */ + if (fs->nr_fstab == 0) { + ret = calloc (3, sizeof (char *)); + ret[0] = safe_strdup (g, "/"); + ret[1] = safe_strdup (g, root); + ret[2] = NULL; + return ret; } - /* Allocate 'apps' list. */ - apps = safe_malloc (g, sizeof *apps); - apps->len = 0; - apps->val = NULL; - - /* Read alternate lines until end of data marker. */ - for (;;) { - if (fgets (line, sizeof line, pp) == NULL) { - error (g, _("unexpected end of output from db_dump command")); - goto out; - } - - len = strlen (line); - if (len > 0 && line[len-1] == '\n') { - line[len-1] = '\0'; - len--; - } - - if (STREQ (line, "DATA=END")) - break; - - char *p = line; - if (len > 0 && line[0] == ' ') - p = line+1; - /* Ignore any application name that contains non-printable chars. - * In the db_dump output these would be escaped with backslash, so - * we can just ignore any such line. - */ - if (strchr (p, '\\') == NULL) - add_application (g, apps, p, "", 0, "", "", "", "", "", ""); - - /* Discard next line. */ - if (fgets (line, sizeof line, pp) == NULL) { - error (g, _("unexpected end of output from db_dump command")); - goto out; - } - } +#define CRITERION fs->fstab[i].mountpoint[0] == '/' + size_t i, count = 0; + for (i = 0; i < fs->nr_fstab; ++i) + if (CRITERION) + count++; - /* Catch errors from the db_dump command. */ - if (pclose (pp) == -1) { - perrorf (g, "pclose: %s", cmd); - goto out; + /* Hashtables have 2N+1 entries. */ + ret = calloc (2*count+1, sizeof (char *)); + if (ret == NULL) { + perrorf (g, "calloc"); + return NULL; } - pp = NULL; - - ret = apps; - out: - if (ret == NULL && apps != NULL) - guestfs_free_application_list (apps); - if (pp) - pclose (pp); - unlink (tmpfile); -#undef cmd_len + count = 0; + for (i = 0; i < fs->nr_fstab; ++i) + if (CRITERION) { + ret[2*count] = safe_strdup (g, fs->fstab[i].mountpoint); + ret[2*count+1] = safe_strdup (g, fs->fstab[i].device); + count++; + } +#undef CRITERION return ret; } -#endif /* defined DB_DUMP */ -static struct guestfs_application_list * -list_applications_deb (guestfs_h *g, struct inspect_fs *fs) +char ** +guestfs__inspect_get_filesystems (guestfs_h *g, const char *root) { - TMP_TEMPLATE_ON_STACK (tmpfile); - - if (download_to_tmp (g, "/var/lib/dpkg/status", tmpfile, 10000000) == -1) + struct inspect_fs *fs = guestfs___search_for_root (g, root); + if (!fs) return NULL; - struct guestfs_application_list *apps = NULL, *ret = NULL; - FILE *fp = NULL; - char line[1024]; - size_t len; - char *name = NULL, *version = NULL, *release = NULL; - int installed_flag = 0; - - fp = fopen (tmpfile, "r"); - if (fp == NULL) { - perrorf (g, "fopen: %s", tmpfile); - goto out; - } - - /* Allocate 'apps' list. */ - apps = safe_malloc (g, sizeof *apps); - apps->len = 0; - apps->val = NULL; - - /* Read the temporary file. Each package entry is separated by - * a blank line. - * XXX Strictly speaking this is in mailbox header format, so it - * would be possible for fields to spread across multiple lines, - * although for the short fields that we are concerned about this is - * unlikely and not seen in practice. - */ - while (fgets (line, sizeof line, fp) != NULL) { - len = strlen (line); - if (len > 0 && line[len-1] == '\n') { - line[len-1] = '\0'; - len--; - } + char **ret; - if (STRPREFIX (line, "Package: ")) { - free (name); - name = safe_strdup (g, &line[9]); - } - else if (STRPREFIX (line, "Status: ")) { - installed_flag = strstr (&line[8], "installed") != NULL; - } - else if (STRPREFIX (line, "Version: ")) { - free (version); - free (release); - char *p = strchr (&line[9], '-'); - if (p) { - *p = '\0'; - version = safe_strdup (g, &line[9]); - release = safe_strdup (g, p+1); - } else { - version = safe_strdup (g, &line[9]); - release = NULL; - } - } - else if (STREQ (line, "")) { - if (installed_flag && name && version) - add_application (g, apps, name, "", 0, version, release ? : "", - "", "", "", ""); - free (name); - free (version); - free (release); - name = version = release = NULL; - installed_flag = 0; - } + /* If no fstab information (Windows) return just the root. */ + if (fs->nr_fstab == 0) { + ret = calloc (2, sizeof (char *)); + ret[0] = safe_strdup (g, root); + ret[1] = NULL; + return ret; } - if (fclose (fp) == -1) { - perrorf (g, "fclose: %s", tmpfile); - goto out; + ret = calloc (fs->nr_fstab + 1, sizeof (char *)); + if (ret == NULL) { + perrorf (g, "calloc"); + return NULL; } - fp = NULL; - ret = apps; + size_t i; + for (i = 0; i < fs->nr_fstab; ++i) + ret[i] = safe_strdup (g, fs->fstab[i].device); - out: - if (ret == NULL && apps != NULL) - guestfs_free_application_list (apps); - if (fp) - fclose (fp); - free (name); - free (version); - free (release); - unlink (tmpfile); return ret; } -/* XXX We already download the SOFTWARE hive when doing general - * inspection. We could avoid this second download of the same file - * by caching these entries in the handle. - */ -static struct guestfs_application_list * -list_applications_windows (guestfs_h *g, struct inspect_fs *fs) +char ** +guestfs__inspect_get_drive_mappings (guestfs_h *g, const char *root) { - TMP_TEMPLATE_ON_STACK (software_local); - - size_t len = strlen (fs->windows_systemroot) + 64; - char software[len]; - snprintf (software, len, "%s/system32/config/software", - fs->windows_systemroot); - - char *software_path = resolve_windows_path_silently (g, software); - if (!software_path) - /* If the software hive doesn't exist, just accept that we cannot - * find product_name etc. - */ - return 0; - - struct guestfs_application_list *apps = NULL, *ret = NULL; - hive_h *h = NULL; - hive_node_h *children = NULL; - - if (download_to_tmp (g, software_path, software_local, 100000000) == -1) - goto out; - - h = hivex_open (software_local, g->verbose ? HIVEX_OPEN_VERBOSE : 0); - if (h == NULL) { - perrorf (g, "hivex_open"); - goto out; - } + char **ret; + size_t i, count; + struct inspect_fs *fs; - hive_node_h node = hivex_root (h); - const char *hivepath[] = - { "Microsoft", "Windows", "CurrentVersion", "Uninstall" }; - size_t i; - for (i = 0; - node != 0 && i < sizeof hivepath / sizeof hivepath[0]; - ++i) { - node = hivex_node_get_child (h, node, hivepath[i]); - } + fs = guestfs___search_for_root (g, root); + if (!fs) + return NULL; - if (node == 0) { - perrorf (g, "hivex: cannot locate HKLM\\SOFTWARE\\Microsoft\\Windows\\CurrentVersion\\Uninstall"); - goto out; + /* If no drive mappings, return an empty hashtable. */ + if (!fs->drive_mappings) + count = 0; + else { + for (count = 0; fs->drive_mappings[count] != NULL; count++) + ; } - children = hivex_node_children (h, node); - if (children == NULL) { - perrorf (g, "hivex_node_children"); - goto out; + ret = calloc (count+1, sizeof (char *)); + if (ret == NULL) { + perrorf (g, "calloc"); + return NULL; } - /* Allocate 'apps' list. */ - apps = safe_malloc (g, sizeof *apps); - apps->len = 0; - apps->val = NULL; - - /* Consider any child node that has a DisplayName key. - * See also: - * http://nsis.sourceforge.net/Add_uninstall_information_to_Add/Remove_Programs#Optional_values + /* We need to make a deep copy of the hashtable since the caller + * will free it. */ - for (i = 0; children[i] != 0; ++i) { - hive_value_h value; - char *name = NULL; - char *display_name = NULL; - char *version = NULL; - char *install_path = NULL; - char *publisher = NULL; - char *url = NULL; - char *comments = NULL; - - /* Use the node name as a proxy for the package name in Linux. The - * display name is not language-independent, so it cannot be used. - */ - name = hivex_node_name (h, children[i]); - if (name == NULL) { - perrorf (g, "hivex_node_get_name"); - goto out; - } - - value = hivex_node_get_value (h, children[i], "DisplayName"); - if (value) { - display_name = hivex_value_string (h, value); - if (display_name) { - value = hivex_node_get_value (h, children[i], "DisplayVersion"); - if (value) - version = hivex_value_string (h, value); - value = hivex_node_get_value (h, children[i], "InstallLocation"); - if (value) - install_path = hivex_value_string (h, value); - value = hivex_node_get_value (h, children[i], "Publisher"); - if (value) - publisher = hivex_value_string (h, value); - value = hivex_node_get_value (h, children[i], "URLInfoAbout"); - if (value) - url = hivex_value_string (h, value); - value = hivex_node_get_value (h, children[i], "Comments"); - if (value) - comments = hivex_value_string (h, value); - - add_application (g, apps, name, display_name, 0, - version ? : "", - "", - install_path ? : "", - publisher ? : "", - url ? : "", - comments ? : ""); - } - } + for (i = 0; i < count; ++i) + ret[i] = safe_strdup (g, fs->drive_mappings[i]); - free (name); - free (display_name); - free (version); - free (install_path); - free (publisher); - free (url); - free (comments); - } + ret[count] = NULL; - ret = apps; + return ret; +} - out: - if (ret == NULL && apps != NULL) - guestfs_free_application_list (apps); - if (h) hivex_close (h); - free (children); - free (software_path); +char * +guestfs__inspect_get_package_format (guestfs_h *g, const char *root) +{ + struct inspect_fs *fs = guestfs___search_for_root (g, root); + if (!fs) + return NULL; - /* Free up the temporary file. */ - unlink (software_local); -#undef software_local_len + char *ret; + switch (fs->package_format) { + case OS_PACKAGE_FORMAT_RPM: ret = safe_strdup (g, "rpm"); break; + case OS_PACKAGE_FORMAT_DEB: ret = safe_strdup (g, "deb"); break; + case OS_PACKAGE_FORMAT_PACMAN: ret = safe_strdup (g, "pacman"); break; + case OS_PACKAGE_FORMAT_EBUILD: ret = safe_strdup (g, "ebuild"); break; + case OS_PACKAGE_FORMAT_PISI: ret = safe_strdup (g, "pisi"); break; + case OS_PACKAGE_FORMAT_UNKNOWN: + default: + ret = safe_strdup (g, "unknown"); + break; + } return ret; } -static void -add_application (guestfs_h *g, struct guestfs_application_list *apps, - const char *name, const char *display_name, int32_t epoch, - const char *version, const char *release, - const char *install_path, - const char *publisher, const char *url, - const char *description) +char * +guestfs__inspect_get_package_management (guestfs_h *g, const char *root) { - apps->len++; - apps->val = safe_realloc (g, apps->val, - apps->len * sizeof (struct guestfs_application)); - apps->val[apps->len-1].app_name = safe_strdup (g, name); - apps->val[apps->len-1].app_display_name = safe_strdup (g, display_name); - apps->val[apps->len-1].app_epoch = epoch; - apps->val[apps->len-1].app_version = safe_strdup (g, version); - apps->val[apps->len-1].app_release = safe_strdup (g, release); - apps->val[apps->len-1].app_install_path = safe_strdup (g, install_path); - /* XXX Translated path is not implemented yet. */ - apps->val[apps->len-1].app_trans_path = safe_strdup (g, ""); - apps->val[apps->len-1].app_publisher = safe_strdup (g, publisher); - apps->val[apps->len-1].app_url = safe_strdup (g, url); - /* XXX The next two are not yet implemented for any package - * format, but we could easily support them for rpm and deb. - */ - apps->val[apps->len-1].app_source_package = safe_strdup (g, ""); - apps->val[apps->len-1].app_summary = safe_strdup (g, ""); - apps->val[apps->len-1].app_description = safe_strdup (g, description); -} + struct inspect_fs *fs = guestfs___search_for_root (g, root); + if (!fs) + return NULL; -/* Sort applications by name before returning the list. */ -static int -compare_applications (const void *vp1, const void *vp2) -{ - const struct guestfs_application *v1 = vp1; - const struct guestfs_application *v2 = vp2; + char *ret; + switch (fs->package_management) { + case OS_PACKAGE_MANAGEMENT_YUM: ret = safe_strdup (g, "yum"); break; + case OS_PACKAGE_MANAGEMENT_UP2DATE: ret = safe_strdup (g, "up2date"); break; + case OS_PACKAGE_MANAGEMENT_APT: ret = safe_strdup (g, "apt"); break; + case OS_PACKAGE_MANAGEMENT_PACMAN: ret = safe_strdup (g, "pacman"); break; + case OS_PACKAGE_MANAGEMENT_PORTAGE: ret = safe_strdup (g, "portage"); break; + case OS_PACKAGE_MANAGEMENT_PISI: ret = safe_strdup (g, "pisi"); break; + case OS_PACKAGE_MANAGEMENT_URPMI: ret = safe_strdup (g, "urpmi"); break; + case OS_PACKAGE_MANAGEMENT_UNKNOWN: + default: + ret = safe_strdup (g, "unknown"); + break; + } - return strcmp (v1->app_name, v2->app_name); + return ret; } -static void -sort_applications (struct guestfs_application_list *apps) +char * +guestfs__inspect_get_hostname (guestfs_h *g, const char *root) { - if (apps && apps->val) - qsort (apps->val, apps->len, sizeof (struct guestfs_application), - compare_applications); + struct inspect_fs *fs = guestfs___search_for_root (g, root); + if (!fs) + return NULL; + + return safe_strdup (g, fs->hostname ? : "unknown"); } -/* Download to a guest file to a local temporary file. Refuse to +/* Download a guest file to a local temporary file. The file is + * downloaded into g->tmpdir, unless it already exists in g->tmpdir. + * The final name will be g->tmpdir + "/" + basename. Refuse to * download the guest file if it is larger than max_size. The caller - * is responsible for deleting the temporary file after use. + * does not need to delete the temporary file after use: it will be + * deleted when the handle is cleaned up. */ -static int -download_to_tmp (guestfs_h *g, const char *filename, - char *localtmp, int64_t max_size) +int +guestfs___download_to_tmp (guestfs_h *g, const char *filename, + const char *basename, int64_t max_size) { - int fd; + int tmpdirfd, fd, r = -1; char buf[32]; int64_t size; + tmpdirfd = open (g->tmpdir, O_RDONLY); + if (tmpdirfd == -1) { + perrorf (g, _("%s: temporary directory not found"), g->tmpdir); + return -1; + } + + /* If the file has already been downloaded, return. */ + if (faccessat (tmpdirfd, basename, R_OK, 0) == 0) { + r = 0; + goto out; + } + + /* Check size of remote file. */ size = guestfs_filesize (g, filename); if (size == -1) /* guestfs_filesize failed and has already set error in handle */ - return -1; + goto out; if (size > max_size) { error (g, _("size of %s is unreasonably large (%" PRIi64 " bytes)"), filename, size); - return -1; + goto out; } - fd = mkstemp (localtmp); + fd = openat (tmpdirfd, basename, O_WRONLY|O_CREAT|O_TRUNC|O_NOCTTY, 0600); if (fd == -1) { - perrorf (g, "mkstemp"); - return -1; + perrorf (g, "openat: %s/%s", g->tmpdir, basename); + goto out; } snprintf (buf, sizeof buf, "/dev/fd/%d", fd); if (guestfs_download (g, filename, buf) == -1) { + unlinkat (tmpdirfd, basename, 0); close (fd); - unlink (localtmp); - return -1; + goto out; } if (close (fd) == -1) { - perrorf (g, "close: %s", localtmp); - unlink (localtmp); - return -1; - } - - return 0; -} - -/* Call 'f' with Augeas opened and having parsed 'filename' (this file - * must exist). As a security measure, this bails if the file is too - * large for a reasonable configuration file. After the call to 'f' - * Augeas is closed. - */ -static int -inspect_with_augeas (guestfs_h *g, struct inspect_fs *fs, const char *filename, - int (*f) (guestfs_h *, struct inspect_fs *)) -{ - /* Security: Refuse to do this if filename is too large. */ - int64_t size = guestfs_filesize (g, filename); - if (size == -1) - /* guestfs_filesize failed and has already set error in handle */ - return -1; - if (size > 100000) { - error (g, _("size of %s is unreasonably large (%" PRIi64 " bytes)"), - filename, size); - return -1; - } - - /* If !feature_available (g, "augeas") then the next call will fail. - * Arguably we might want to fall back to a non-Augeas method in - * this case. - */ - if (guestfs_aug_init (g, "/", 16|32) == -1) - return -1; - - int r = -1; - - /* Tell Augeas to only load one file (thanks Raphaël Pinson). */ - char buf[strlen (filename) + 64]; - snprintf (buf, strlen (filename) + 64, "/augeas/load//incl[. != \"%s\"]", - filename); - if (guestfs_aug_rm (g, buf) == -1) - goto out; - - if (guestfs_aug_load (g) == -1) + perrorf (g, "close: %s/%s", g->tmpdir, basename); + unlinkat (tmpdirfd, basename, 0); goto out; + } - r = f (g, fs); - + r = 0; out: - guestfs_aug_close (g); + if (tmpdirfd >= 0) + close (tmpdirfd); return r; } -/* Get the first line of a small file, without any trailing newline - * character. - */ -static char * -first_line_of_file (guestfs_h *g, const char *filename) +struct inspect_fs * +guestfs___search_for_root (guestfs_h *g, const char *root) { - char **lines; - int64_t size; - char *ret; - - /* Don't trust guestfs_head_n not to break with very large files. - * Check the file size is something reasonable first. - */ - size = guestfs_filesize (g, filename); - if (size == -1) - /* guestfs_filesize failed and has already set error in handle */ - return NULL; - if (size > 1000000) { - error (g, _("size of %s is unreasonably large (%" PRIi64 " bytes)"), - filename, size); + if (g->nr_fses == 0) { + error (g, _("no inspection data: call guestfs_inspect_os first")); return NULL; } - lines = guestfs_head_n (g, 1, filename); - if (lines == NULL) - return NULL; - if (lines[0] == NULL) { - error (g, _("%s: file is empty"), filename); - guestfs___free_string_list (lines); - return NULL; + size_t i; + struct inspect_fs *fs; + for (i = 0; i < g->nr_fses; ++i) { + fs = &g->fses[i]; + if (fs->is_root && STREQ (root, fs->device)) + return fs; } - /* lines[1] should be NULL because of '1' argument above ... */ - ret = lines[0]; /* caller frees */ - free (lines); /* free the array */ - - return ret; + error (g, _("%s: root device not found: only call this function with a root device previously returned by guestfs_inspect_os"), + root); + return NULL; } #else /* no PCRE or hivex at compile time */ @@ -2297,11 +643,24 @@ guestfs__inspect_get_product_name (guestfs_h *g, const char *root) } char * +guestfs__inspect_get_product_variant (guestfs_h *g, const char *root) +{ + NOT_IMPL(NULL); +} + +char * guestfs__inspect_get_windows_systemroot (guestfs_h *g, const char *root) { NOT_IMPL(NULL); } +char * +guestfs__inspect_get_windows_current_control_set (guestfs_h *g, + const char *root) +{ + NOT_IMPL(NULL); +} + char ** guestfs__inspect_get_mountpoints (guestfs_h *g, const char *root) { @@ -2314,6 +673,12 @@ guestfs__inspect_get_filesystems (guestfs_h *g, const char *root) NOT_IMPL(NULL); } +char ** +guestfs__inspect_get_drive_mappings (guestfs_h *g, const char *root) +{ + NOT_IMPL(NULL); +} + char * guestfs__inspect_get_package_format (guestfs_h *g, const char *root) { @@ -2332,12 +697,30 @@ guestfs__inspect_get_hostname (guestfs_h *g, const char *root) NOT_IMPL(NULL); } -struct guestfs_application_list * -guestfs__inspect_list_applications (guestfs_h *g, const char *root) +char * +guestfs__inspect_get_format (guestfs_h *g, const char *root) { NOT_IMPL(NULL); } +int +guestfs__inspect_is_live (guestfs_h *g, const char *root) +{ + NOT_IMPL(-1); +} + +int +guestfs__inspect_is_netinst (guestfs_h *g, const char *root) +{ + NOT_IMPL(-1); +} + +int +guestfs__inspect_is_multipart (guestfs_h *g, const char *root) +{ + NOT_IMPL(-1); +} + #endif /* no PCRE or hivex at compile time */ void @@ -2347,15 +730,19 @@ guestfs___free_inspect_info (guestfs_h *g) for (i = 0; i < g->nr_fses; ++i) { free (g->fses[i].device); free (g->fses[i].product_name); + free (g->fses[i].product_variant); free (g->fses[i].arch); free (g->fses[i].hostname); free (g->fses[i].windows_systemroot); + free (g->fses[i].windows_current_control_set); size_t j; for (j = 0; j < g->fses[i].nr_fstab; ++j) { free (g->fses[i].fstab[j].device); free (g->fses[i].fstab[j].mountpoint); } free (g->fses[i].fstab); + if (g->fses[i].drive_mappings) + guestfs___free_string_list (g->fses[i].drive_mappings); } free (g->fses); g->nr_fses = 0; @@ -2379,101 +766,3 @@ guestfs___feature_available (guestfs_h *g, const char *feature) return r == 0 ? 1 : 0; } - -#ifdef HAVE_PCRE - -/* Match a regular expression which contains no captures. Returns - * true if it matches or false if it doesn't. - */ -int -guestfs___match (guestfs_h *g, const char *str, const pcre *re) -{ - size_t len = strlen (str); - int vec[30], r; - - r = pcre_exec (re, NULL, str, len, 0, 0, vec, sizeof vec / sizeof vec[0]); - if (r == PCRE_ERROR_NOMATCH) - return 0; - if (r != 1) { - /* Internal error -- should not happen. */ - fprintf (stderr, "libguestfs: %s: %s: internal error: pcre_exec returned unexpected error code %d when matching against the string \"%s\"\n", - __FILE__, __func__, r, str); - return 0; - } - - return 1; -} - -/* Match a regular expression which contains exactly one capture. If - * the string matches, return the capture, otherwise return NULL. The - * caller must free the result. - */ -char * -guestfs___match1 (guestfs_h *g, const char *str, const pcre *re) -{ - size_t len = strlen (str); - int vec[30], r; - - r = pcre_exec (re, NULL, str, len, 0, 0, vec, sizeof vec / sizeof vec[0]); - if (r == PCRE_ERROR_NOMATCH) - return NULL; - if (r != 2) { - /* Internal error -- should not happen. */ - fprintf (stderr, "libguestfs: %s: %s: internal error: pcre_exec returned unexpected error code %d when matching against the string \"%s\"\n", - __FILE__, __func__, r, str); - return NULL; - } - - return safe_strndup (g, &str[vec[2]], vec[3]-vec[2]); -} - -/* Match a regular expression which contains exactly two captures. */ -int -guestfs___match2 (guestfs_h *g, const char *str, const pcre *re, - char **ret1, char **ret2) -{ - size_t len = strlen (str); - int vec[30], r; - - r = pcre_exec (re, NULL, str, len, 0, 0, vec, 30); - if (r == PCRE_ERROR_NOMATCH) - return 0; - if (r != 3) { - /* Internal error -- should not happen. */ - fprintf (stderr, "libguestfs: %s: %s: internal error: pcre_exec returned unexpected error code %d when matching against the string \"%s\"\n", - __FILE__, __func__, r, str); - return 0; - } - - *ret1 = safe_strndup (g, &str[vec[2]], vec[3]-vec[2]); - *ret2 = safe_strndup (g, &str[vec[4]], vec[5]-vec[4]); - - return 1; -} - -/* Match a regular expression which contains exactly three captures. */ -int -guestfs___match3 (guestfs_h *g, const char *str, const pcre *re, - char **ret1, char **ret2, char **ret3) -{ - size_t len = strlen (str); - int vec[30], r; - - r = pcre_exec (re, NULL, str, len, 0, 0, vec, 30); - if (r == PCRE_ERROR_NOMATCH) - return 0; - if (r != 4) { - /* Internal error -- should not happen. */ - fprintf (stderr, "libguestfs: %s: %s: internal error: pcre_exec returned unexpected error code %d when matching against the string \"%s\"\n", - __FILE__, __func__, r, str); - return 0; - } - - *ret1 = safe_strndup (g, &str[vec[2]], vec[3]-vec[2]); - *ret2 = safe_strndup (g, &str[vec[4]], vec[5]-vec[4]); - *ret3 = safe_strndup (g, &str[vec[6]], vec[7]-vec[6]); - - return 1; -} - -#endif /* HAVE_PCRE */