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ata_id: Check for Compact Flash card

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Automounters may need information like this to e.g. allow unprivileged
applications to mount filesystems from a CF card but not from
other ATA devices. See https://bugzilla.redhat.com/show_bug.cgi?id=734191

Signed-off-by: David Zeuthen <davidz@redhat.com>
This commit is contained in:
David Zeuthen 2011-08-31 10:00:11 -04:00 committed by Kay Sievers
parent 4fd394c34b
commit b93b46e4b7
1 changed files with 11 additions and 0 deletions
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11
extras/ata_id/ata_id.c
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@ -448,6 +448,7 @@ int main(int argc, char *argv[])
struct udev *udev;
struct hd_driveid id;
uint8_t identify[512];
uint16_t *identify_words;
char model[41];
char model_enc[256];
char serial[21];
@ -541,6 +542,7 @@ int main(int argc, char *argv[])
goto close;
}
}
identify_words = (uint16_t *) identify;
memcpy (model, id.model, 40);
model[40] = '\0';
@ -700,6 +702,15 @@ int main(int argc, char *argv[])
/* ATA devices have no vendor extension */
printf("ID_WWN_WITH_EXTENSION=0x%llx\n", (unsigned long long int) wwwn);
}
/* from Linux's include/linux/ata.h */
if (identify_words[0] == 0x848a || identify_words[0] == 0x844a) {
printf("ID_ATA_CFA=1\n");
} else {
if ((identify_words[83] & 0xc004) == 0x4004) {
printf("ID_ATA_CFA=1\n");
}
}
} else {
if (serial[0] != '\0')
printf("%s_%s\n", model, serial);