[Libguestfs] [PATCH 9/9] Check for netbsd root filesystem

[misc at zarb.org]

From: Michael Scherer <misc at zarb.org>

---
 src/guestfs-internal.h |    1 +
 src/inspect_fs.c       |   17 +++++++++++++++++
 src/inspect_fs_unix.c  |   45 +++++++++++++++++++++++++++++++++++++++++++++
 3 files changed, 63 insertions(+), 0 deletions(-)

diff --git a/src/guestfs-internal.h b/src/guestfs-internal.h
index 52e3963..0e60175 100644
--- a/src/guestfs-internal.h
+++ b/src/guestfs-internal.h
@@ -239,6 +239,7 @@ enum inspect_fs_content {
   FS_CONTENT_LINUX_USR_LOCAL,
   FS_CONTENT_LINUX_VAR,
   FS_CONTENT_FREEBSD_ROOT,
+  FS_CONTENT_NETBSD_ROOT,
   FS_CONTENT_INSTALLER,
 };
 
diff --git a/src/inspect_fs.c b/src/inspect_fs.c
index 68e2ddb..25bb492 100644
--- a/src/inspect_fs.c
+++ b/src/inspect_fs.c
@@ -190,6 +190,23 @@ check_filesystem (guestfs_h *g, const char *device,
     if (guestfs___check_freebsd_root (g, fs) == -1)
       return -1;
   }
+  else if (is_dir_etc &&
+           is_dir_bin &&
+           guestfs_is_file (g, "/etc/fstab") > 0 &&
+           guestfs_is_file (g, "/etc/release") > 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_NETBSD_ROOT;
+    fs->format = OS_FORMAT_INSTALLED;
+    if (guestfs___check_netbsd_root (g, fs) == -1)
+      return -1;
+  }
   /* Linux root? */
   else if (is_dir_etc &&
            is_dir_bin &&
diff --git a/src/inspect_fs_unix.c b/src/inspect_fs_unix.c
index 20c164e..c4aa6ef 100644
--- a/src/inspect_fs_unix.c
+++ b/src/inspect_fs_unix.c
@@ -66,6 +66,7 @@ static pcre *re_aug_seq;
 static pcre *re_xdev;
 static pcre *re_first_partition;
 static pcre *re_freebsd;
+static pcre *re_netbsd;
 
 static void compile_regexps (void) __attribute__((constructor));
 static void free_regexps (void) __attribute__((destructor));
@@ -108,6 +109,7 @@ compile_regexps (void)
   COMPILE (re_aug_seq, "/\\d+$", 0);
   COMPILE (re_xdev, "^/dev/(?:h|s|v|xv)d([a-z]\\d*)$", 0);
   COMPILE (re_freebsd, "^/dev/ad(\\d+)s(\\d+)([a-z])$", 0);
+  COMPILE (re_netbsd, "^NetBSD (\\d+)\\.(\\d+)", 0);
 }
 
 static void
@@ -127,6 +129,7 @@ free_regexps (void)
   pcre_free (re_aug_seq);
   pcre_free (re_xdev);
   pcre_free (re_freebsd);
+  pcre_free (re_netbsd);
 }
 
 static void check_architecture (guestfs_h *g, struct inspect_fs *fs);
@@ -483,6 +486,48 @@ guestfs___check_freebsd_root (guestfs_h *g, struct inspect_fs *fs)
   return 0;
 }
 
+/* The currently mounted device is maybe to be a *BSD root. */
+int
+guestfs___check_netbsd_root (guestfs_h *g, struct inspect_fs *fs)
+{
+
+  if (guestfs_exists (g, "/etc/release") > 0) {
+    char *major, *minor;
+    if (parse_release_file (g, fs, "/etc/release") == -1)
+      return -1;
+
+    if (match2 (g, fs->product_name, re_netbsd, &major, &minor)) {
+      fs->type = OS_TYPE_NETBSD;
+      fs->major_version = guestfs___parse_unsigned_int (g, major);
+      free (major);
+      if (fs->major_version == -1) {
+        free (minor);
+        return -1;
+      }
+      fs->minor_version = guestfs___parse_unsigned_int (g, minor);
+      free (minor);
+      if (fs->minor_version == -1)
+        return -1;
+    }
+  } else {
+    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)
 {
-- 
1.7.1