Added command for the "Find By Type Value" request. Sample runs:
$ btatt -d 00:02:5B:00:15:10 -v find-by-type-value 0x0001 0xffff
att: ATT command 0x06
att: < 06 01 00 ff ff 00 28
att: > 01 06 01 00 0a
Error response:
opcode: 0x06
handle: 0x0001
error: 0x0a
$ btatt -d 00:02:5B:00:15:10 -v find-by-type-value 0x0001 0xffff 01 18
att: ATT command 0x06
att: < 06 01 00 ff ff 00 28 01 08
att: > 07 08 00 08 00
Find By Type Value response:
Handle Information List:
Attr Handle: 0x0008, Grp End Handle: 0x0008
---
tools/btatt.c | 164 +++++++++++++++++++++++++++++++++++++++++++++++++++++++++-
1 file changed, 162 insertions(+), 2 deletions(-)
diff --git a/tools/btatt.c b/tools/btatt.c
index f65f4ea..d1d8cfe 100644
--- a/tools/btatt.c
+++ b/tools/btatt.c
@@ -29,6 +29,7 @@
#include <stdio.h>
#include <getopt.h>
#include <string.h>
+#include <errno.h>
#include <bluetooth/bluetooth.h>
#include <bluetooth/l2cap.h>
@@ -51,8 +52,11 @@ static void handle_error(const void *param, uint16_t len)
return;
}
- printf("Request failed:\n\topcode:\t%u\n\thandle:\t%u\n\terror:\t%u\n",
- rp->request_opcode, rp->handle, rp->error_code);
+ printf("Error response:\n"
+ "\topcode:\t0x%02x\n"
+ "\thandle:\t0x%04x\n"
+ "\terror:\t0x%02x\n",
+ rp->request_opcode, rp->handle, rp->error_code);
}
static void exchange_mtu_cb(uint8_t opcode, const void *param,
@@ -258,6 +262,160 @@ static void cmd_find_info(struct bt_att *att, int argc, char **argv)
}
}
+static void find_by_type_val_cb(uint8_t opcode, const void *param,
+ uint16_t len, void *user_data)
+{
+ const struct bt_att_find_by_type_value_rsp_param *rp;
+ uint16_t att_handle, grp_handle;
+ const uint8_t *data_ptr;
+ int num_handle_infos;
+ int i;
+
+ if (opcode == BT_ATT_OP_ERROR_RESP) {
+ handle_error(param, len);
+ goto done;
+ }
+
+ if (opcode != BT_ATT_OP_FIND_BY_TYPE_VALUE_RESP) {
+ fprintf(stderr, "Invalid response opcode (0x%02x)\n", opcode);
+ goto done;
+ }
+
+ rp = param;
+
+ if (len != sizeof(*rp)) {
+ fprintf(stderr, "Invalid \"Find By Type Value\" response length"
+ " (%u)\n", len);
+ goto done;
+ }
+
+ if (rp->length == 0) {
+ fprintf(stderr, "\"Handle Info. List\" field is empty!\n");
+ goto done;
+ }
+
+ if (rp->length % 4) {
+ fprintf(stderr, "Malformed response\n");
+ goto done;
+ }
+
+ num_handle_infos = rp->length / 4;
+
+ printf("Find By Type Value response:\n");
+ printf("\tHandle Information List:\n");
+
+ data_ptr = rp->handles_information_list;
+ for (i = 0; i < num_handle_infos; i++) {
+ printf("\t\tAttr Handle: 0x%04x, Grp End Handle: 0x%04x\n",
+ get_le16(data_ptr),
+ get_le16(data_ptr + 2));
+
+ data_ptr += 4;
+ }
+
+done:
+ mainloop_quit();
+}
+
+static void find_by_type_val_usage(void)
+{
+ printf("Usage: btatt find-by-type-value <start handle> <end handle> "
+ "<uuid> <value>\n");
+
+ printf("e.g. btatt find-by-type-value 0x0001 0xFFFF 0x280C 00 01\n");
+}
+
+static struct option find_by_type_val_options[] = {
+ { "help", 0, 0, 'h'},
+ {}
+};
+
+static void cmd_find_by_type_val(struct bt_att *att, int argc, char **argv)
+{
+ struct bt_att_find_by_type_value_req_param param;
+ uint16_t start, end, type, length;
+ uint8_t *value = NULL;
+ int opt;
+
+ while ((opt = getopt_long(argc, argv, "+h", find_by_type_val_options,
+ NULL)) != -1) {
+ switch (opt) {
+ case 'h':
+ default:
+ find_by_type_val_usage();
+ exit(EXIT_SUCCESS);
+ }
+ }
+
+ argc -= optind;
+ argv += optind;
+
+ if (argc < 3) {
+ find_by_type_val_usage();
+ exit(EXIT_FAILURE);
+ }
+
+ start = strtol(argv[0], NULL, 0);
+ if (!start) {
+ fprintf(stderr, "Invalid start handle: %s\n", argv[0]);
+ exit(EXIT_FAILURE);
+ }
+
+ end = strtol(argv[1], NULL, 0);
+ if (!end) {
+ fprintf(stderr, "Invalid end handle: %s\n", argv[1]);
+ exit(EXIT_FAILURE);
+ }
+
+ type = strtol(argv[2], NULL, 0);
+ if (!type) {
+ fprintf(stderr, "Invalid 16-bit UUID: %s\n", argv[2]);
+ exit(EXIT_FAILURE);
+ }
+
+ length = argc - 3;
+
+ if (length > 0) {
+ int i;
+
+ value = malloc(length);
+
+ for (i = 3; i < argc; i++) {
+ if (strlen(argv[i]) != 2) {
+ fprintf(stderr, "Invalid value byte: %s\n",
+ argv[i]);
+ free(value);
+ exit(EXIT_FAILURE);
+ }
+
+ value[i-3] = strtol(argv[i], NULL, 16);
+ if (errno) {
+ perror("Error parsing value");
+ free(value);
+ exit(EXIT_FAILURE);
+ }
+ }
+ }
+
+ memset(¶m, 0, sizeof(param));
+ param.start_handle = start;
+ param.end_handle = end;
+ param.type = type;
+ param.value = value;
+ param.length = length;
+
+ if (!bt_att_send_sequential(att, BT_ATT_OP_FIND_BY_TYPE_VALUE_REQ,
+ ¶m, sizeof(param),
+ find_by_type_val_cb, NULL, NULL)) {
+ fprintf(stderr, "Unable to send \"Find By Type Value\" "
+ "request\n");
+ free(value);
+ exit(EXIT_FAILURE);
+ }
+
+ free(value);
+}
+
static int l2cap_le_att_connect(bdaddr_t *src, bdaddr_t *dst, uint8_t dst_type)
{
int sock;
@@ -314,6 +472,8 @@ static struct {
} command[] = {
{ "exchange-mtu", cmd_mtu, "\"Exchange MTU\" request" },
{ "find-information", cmd_find_info, "\"Find Information\" request" },
+ { "find-by-type-value", cmd_find_by_type_val,
+ "\"Find By Type Value\" request" },
{ }
};
--
1.8.3.2
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