This will print the ObjectID buffer for the object.
This is an example on how to fetch FSCTL data for an object using
the passthrough API.
Signed-off-by: Ronnie Sahlberg <lsahlber@xxxxxxxxxx>
---
smbinfo.c | 73 +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
smbinfo.rst | 2 ++
2 files changed, 75 insertions(+)
diff --git a/smbinfo.c b/smbinfo.c
index 6b63f9d..215842c 100644
--- a/smbinfo.c
+++ b/smbinfo.c
@@ -39,6 +39,11 @@
#include <inttypes.h>
#define CIFS_IOCTL_MAGIC 0xCF
+
+/* query_info flags */
+#define PASSTHRU_QUERY_INFO 0x00000000
+#define PASSTHRU_FSCTL 0x00000001
+
struct smb_query_info {
uint32_t info_type;
uint32_t file_info_class;
@@ -170,6 +175,72 @@ print_bits(uint32_t mask, struct bit_string *bs)
}
static void
+print_guid(uint8_t *sd)
+{
+ uint32_t u32;
+ uint16_t u16;
+ int i;
+
+ memcpy(&u32, &sd[0], 4);
+ printf("%08x-", le32toh(u32));
+
+ memcpy(&u16, &sd[4], 2);
+ printf("%04x-", le16toh(u16));
+
+ memcpy(&u16, &sd[6], 2);
+ printf("%04x-", le16toh(u16));
+
+ printf("%02x%02x-", sd[8], sd[9]);
+ for (i = 0; i < 6; i++)
+ printf("%02x", sd[10 + i]);
+}
+
+static void
+print_objidbuf(uint8_t *sd)
+{
+ printf("Object-ID: ");
+ print_guid(&sd[0]);
+ printf("\n");
+
+ printf("Birth-Volume-ID: ");
+ print_guid(&sd[16]);
+ printf("\n");
+
+ printf("Birth-Object-ID: ");
+ print_guid(&sd[32]);
+ printf("\n");
+
+ printf("Domain-ID: ");
+ print_guid(&sd[48]);
+ printf("\n");
+}
+
+static void
+fsctlgetobjid(int f)
+{
+ struct smb_query_info *qi;
+ struct stat st;
+
+ fstat(f, &st);
+
+ qi = malloc(sizeof(struct smb_query_info) + 64);
+ memset(qi, 0, sizeof(qi) + 64);
+ qi->info_type = 0x9009c;
+ qi->file_info_class = 0;
+ qi->additional_information = 0;
+ qi->input_buffer_length = 64;
+ qi->flags = PASSTHRU_FSCTL;
+
+ if (ioctl(f, CIFS_QUERY_INFO, qi) < 0) {
+ fprintf(stderr, "ioctl failed with %s\n", strerror(errno));
+ exit(1);
+ }
+ print_objidbuf((uint8_t *)(&qi[1]));
+
+ free(qi);
+}
+
+static void
print_fileaccessinfo(uint8_t *sd, int type)
{
uint32_t access_flags;
@@ -951,6 +1022,8 @@ int main(int argc, char *argv[])
secdesc(f);
else if (!strcmp(argv[optind], "quota"))
quota(f);
+ else if (!strcmp(argv[1], "fsctl-getobjid"))
+ fsctlgetobjid(f);
else {
fprintf(stderr, "Unknown command %s\n", argv[optind]);
exit(1);
diff --git a/smbinfo.rst b/smbinfo.rst
index 9bfd313..fd7f0ff 100644
--- a/smbinfo.rst
+++ b/smbinfo.rst
@@ -62,6 +62,8 @@ COMMAND
`filestandardinfo`: Prints the FileStandardInformation class
+`fsctl-getobjid`: Prints the ObjectID
+
`quota`: Print the quota for the volume in the form
- SID Length
- Change Time
--
2.13.6
