This patch Add CSRK option to btgatt-client tool, use -c <key> to set
CSRK for signed write command need. This key from pairing to store 32
byte key string under group "LocalSignatureKey" in the info file.
---
tools/btgatt-client.c | 35 +++++++++++++++++++++++++++++++++--
1 file changed, 33 insertions(+), 2 deletions(-)
diff --git a/tools/btgatt-client.c b/tools/btgatt-client.c
index d1395b2..dfc15a3 100644
--- a/tools/btgatt-client.c
+++ b/tools/btgatt-client.c
@@ -447,11 +447,13 @@ static void write_value_usage(void)
printf("Usage: write-value [options] <value_handle> <value>\n"
"Options:\n"
"\t-w, --without-response\tWrite without response\n"
+ "\t-c, --csrk <key>\tCSRK for signed write command\n"
"e.g.:\n"
"\twrite-value 0x0001 00 01 00\n");
}
static struct option write_value_options[] = {
+ { "csrk", 1, 0, 'c' },
{ "without-response", 0, 0, 'w' },
{ }
};
@@ -465,6 +467,24 @@ static void write_cb(bool success, uint8_t att_ecode, void *user_data)
}
}
+static bool convert_csrk_key(char *optarg, uint8_t csrk[16])
+{
+ int i;
+ char value[2];
+
+ if (strlen(optarg) != 32) {
+ printf("csrk length is invalid\n");
+ return false;
+ } else {
+ for (i = 0; i < 16; i++) {
+ strncpy(value, optarg + (i * 2), 2);
+ csrk[i] = strtol(value, NULL, 16);
+ }
+ }
+
+ return true;
+}
+
static void cmd_write_value(struct client *cli, char *cmd_str)
{
int opt, i;
@@ -476,6 +496,11 @@ static void cmd_write_value(struct client *cli, char *cmd_str)
int length;
uint8_t *value = NULL;
bool without_response = false;
+ bool signed_write = false;
+ bool valid_csrk = false;
+ uint8_t csrk[16];
+
+ memset(csrk, 0, 16);
if (!bt_gatt_client_is_ready(cli->gatt)) {
printf("GATT client not initialized\n");
@@ -490,12 +515,18 @@ static void cmd_write_value(struct client *cli, char *cmd_str)
optind = 0;
argv[0] = "write-value";
- while ((opt = getopt_long(argc, argv, "+w", write_value_options,
+ while ((opt = getopt_long(argc, argv, "+wc:", write_value_options,
NULL)) != -1) {
switch (opt) {
case 'w':
without_response = true;
break;
+ case 'c':
+ signed_write = true;
+ valid_csrk = convert_csrk_key(optarg, csrk);
+ bt_gatt_client_set_csrk(cli->gatt, LOCAL_CSRK,
+ valid_csrk, csrk);
+ break;
default:
write_value_usage();
return;
@@ -551,7 +582,7 @@ static void cmd_write_value(struct client *cli, char *cmd_str)
if (without_response) {
if (!bt_gatt_client_write_without_response(cli->gatt, handle,
- false, value, length)) {
+ signed_write, value, length)) {
printf("Failed to initiate write without response "
"procedure\n");
return;
--
1.7.10.4
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