| Message ID | 20190315062215.29499-2-lsahlber@redhat.com (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
| Series | smbinfo: add fsctl-getobjid support | expand |
чт, 14 мар. 2019 г. в 23:22, Ronnie Sahlberg <lsahlber@redhat.com>: > > 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@redhat.com> > --- > 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 > Fixed spaces to tabs and applied. Thanks. -- Best regards, Pavel Shilovsky
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
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@redhat.com> --- smbinfo.c | 73 +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ smbinfo.rst | 2 ++ 2 files changed, 75 insertions(+)