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bt: check struct sizes
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See http://permalink.gmane.org/gmane.linux.bluez.kernel/36505.  For historical
reasons these do not use sizeof, and Coverity caught a mistake in
EVT_ENCRYPT_CHANGE_SIZE.

In addition:

- remove status from create_conn_cancel_cp; the "status" field is only
in rp structs.  Note that this means that the OCF_CREATE_CONN_CANCEL
could never have worked (it would have failed the LENGTH_CHECK), but
I am keeping it anyway.

- OCF_READ_LINK_QUALITY similarly could never have worked, but I am
fixing read_link_quality_cp anyway.

- fix inquiry_info which is shorter by one: the kernel has a struct that
is 14 byte long, but not counting the initial num_responses byte which
the kernel parses separately;

- remove extended_inquiry_info altogether, since it's not used and unlike
the other inquiry structs does not have the initial num_responses byte.

Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
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bonzini authored and Michael Tokarev committed Dec 4, 2015
1 parent 2988cbe commit 9847574
Showing 1 changed file with 4 additions and 17 deletions.
21 changes: 4 additions & 17 deletions include/hw/bt.h
Expand Up @@ -504,7 +504,6 @@ typedef struct {

#define OCF_CREATE_CONN_CANCEL 0x0008
typedef struct {
uint8_t status;
bdaddr_t bdaddr;
} QEMU_PACKED create_conn_cancel_cp;
#define CREATE_CONN_CANCEL_CP_SIZE 6
Expand Down Expand Up @@ -1266,13 +1265,13 @@ typedef struct {
uint8_t status;
uint16_t handle;
} QEMU_PACKED reset_failed_contact_counter_rp;
#define RESET_FAILED_CONTACT_COUNTER_RP_SIZE 4
#define RESET_FAILED_CONTACT_COUNTER_RP_SIZE 3

#define OCF_READ_LINK_QUALITY 0x0003
typedef struct {
uint16_t handle;
} QEMU_PACKED read_link_quality_cp;
#define READ_LINK_QUALITY_CP_SIZE 4
#define READ_LINK_QUALITY_CP_SIZE 2

typedef struct {
uint8_t status;
Expand Down Expand Up @@ -1332,7 +1331,7 @@ typedef struct {
uint8_t dev_class[3];
uint16_t clock_offset;
} QEMU_PACKED inquiry_info;
#define INQUIRY_INFO_SIZE 14
#define INQUIRY_INFO_SIZE 15

#define EVT_CONN_COMPLETE 0x03
typedef struct {
Expand Down Expand Up @@ -1381,7 +1380,7 @@ typedef struct {
uint16_t handle;
uint8_t encrypt;
} QEMU_PACKED evt_encrypt_change;
#define EVT_ENCRYPT_CHANGE_SIZE 5
#define EVT_ENCRYPT_CHANGE_SIZE 4

#define EVT_CHANGE_CONN_LINK_KEY_COMPLETE 0x09
typedef struct {
Expand Down Expand Up @@ -1629,18 +1628,6 @@ typedef struct {
} QEMU_PACKED evt_sniff_subrate;
#define EVT_SNIFF_SUBRATE_SIZE 11

#define EVT_EXTENDED_INQUIRY_RESULT 0x2F
typedef struct {
bdaddr_t bdaddr;
uint8_t pscan_rep_mode;
uint8_t pscan_period_mode;
uint8_t dev_class[3];
uint16_t clock_offset;
int8_t rssi;
uint8_t data[240];
} QEMU_PACKED extended_inquiry_info;
#define EXTENDED_INQUIRY_INFO_SIZE 254

#define EVT_TESTING 0xFE

#define EVT_VENDOR 0xFF
Expand Down

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