Re: [PATCH 1/2] smbinfo: add GETCOMPRESSION support

[Pavel Shilovsky <piastryyy@gmail.com>]

ср, 10 апр. 2019 г. в 19:23, Ronnie Sahlberg <lsahlber@redhat.com>:
>
> Signed-off-by: Ronnie Sahlberg <lsahlber@redhat.com>
> ---
>  smbinfo.c   | 48 ++++++++++++++++++++++++++++++++++++++++++++++++
>  smbinfo.rst |  2 ++
>  2 files changed, 50 insertions(+)
>
> diff --git a/smbinfo.c b/smbinfo.c
> index 4bc503a..db569b2 100644
> --- a/smbinfo.c
> +++ b/smbinfo.c
> @@ -87,6 +87,8 @@ usage(char *name)
>                 "      Prints FileStandardInfo for a cifs file.\n"
>                 "  fsctl-getobjid:\n"
>                 "      Prints the objectid of the file and GUID of the underlying volume.\n"
> +               "  getcompression:\n"
> +               "      Prints the compression setting for the file.\n"
>                 "  list-snapshots:\n"
>                 "      List the previous versions of the volume that backs this file.\n"
>                 "  quota:\n"
> @@ -243,6 +245,50 @@ fsctlgetobjid(int f)
>  }
>
>  static void
> +print_getcompression(uint8_t *sd)
> +{
> +       uint16_t u16;
> +
> +       memcpy(&u16, &sd[0], 2);
> +       u16 = le16toh(u16);
> +
> +       printf("Compression: ");
> +       switch (u16) {
> +       case 0:
> +               printf("(0) NONE\n");
> +               break;
> +       case 2:
> +               printf("(2) LZNT1\n");
> +               break;
> +       default:
> +               printf("(%d) UNKNOWN\n", u16);
> +               break;
> +       }
> +}
> +
> +static void
> +getcompression(int f)
> +{
> +       struct smb_query_info *qi;
> +
> +       qi = malloc(sizeof(struct smb_query_info) + 2);
> +       memset(qi, 0, sizeof(qi) + 2);
> +       qi->info_type = 0x9003c;
> +       qi->file_info_class = 0;
> +       qi->additional_information = 0;
> +       qi->input_buffer_length = 2;
> +       qi->flags = PASSTHRU_FSCTL;
> +
> +       if (ioctl(f, CIFS_QUERY_INFO, qi) < 0) {
> +               fprintf(stderr, "ioctl failed with %s\n", strerror(errno));
> +               exit(1);
> +       }
> +       print_getcompression((uint8_t *)(&qi[1]));
> +
> +       free(qi);
> +}
> +
> +static void
>  print_fileaccessinfo(uint8_t *sd, int type)
>  {
>         uint32_t access_flags;
> @@ -1118,6 +1164,8 @@ int main(int argc, char *argv[])
>                 filestandardinfo(f);
>         else if (!strcmp(argv[optind], "fsctl-getobjid"))
>                 fsctlgetobjid(f);
> +       else if (!strcmp(argv[optind], "getcompression"))
> +               getcompression(f);
>         else if (!strcmp(argv[optind], "list-snapshots"))
>                 list_snapshots(f);
>         else if (!strcmp(argv[optind], "quota"))
> diff --git a/smbinfo.rst b/smbinfo.rst
> index 0c96050..ca99b07 100644
> --- a/smbinfo.rst
> +++ b/smbinfo.rst
> @@ -64,6 +64,8 @@ COMMAND
>
>  `fsctl-getobjid`: Prints the ObjectID
>
> +`getcompression`: Prints the compression setting for the file.
> +
>  `list-snapshots`: Lists the previous versions of the volume that backs this file
>
>  `quota`: Print the quota for the volume in the form
> --
> 2.13.6
>

Merged into "next" branch. Thanks.

--
Best regards,
Pavel Shilovsky