Hi Howard,
On Fri, Feb 14, 2020 at 7:49 PM Howard Chung <howardchung@xxxxxxxxxx> wrote:
>
> From: "howardchung@xxxxxxxxxx" <howardchung@xxxxxxxxxx>
>
> When kernel find out that the incoming Just-Works pairing is
> initiated by a paired device, it is user space's responsibility to
> decide the next action.
>
> This patch includes the following:
> - add JustWorksRepairing policy as an option in main.conf
> - handle the confirmation request from kernel
> ---
> The Just-Works repairing policy could be one of the following:
> - never: default; reject the repairing immediately.
> - confirm: prompt a confirmation dialog to user.
> - always: always accept the repairing.
>
> Changes in v4:
> - optimize the code in src/device.c
>
> Changes in v3:
> - move the check from src/agent.c to src/device.c
> - fix the enum declaration in src/hcid.h
>
> Changes in v2:
> - let RequestAuthorization handle the situation
> - remove the changes in client/
>
> src/device.c | 15 +++++++++++++++
> src/hcid.h | 8 ++++++++
> src/main.c | 27 +++++++++++++++++++++++++++
> src/main.conf | 5 +++++
> 4 files changed, 55 insertions(+)
>
> diff --git a/src/device.c b/src/device.c
> index a4fe10980..a8f4c22f3 100644
> --- a/src/device.c
> +++ b/src/device.c
> @@ -6141,6 +6141,21 @@ int device_confirm_passkey(struct btd_device *device, uint8_t type,
> struct authentication_req *auth;
> int err;
>
> + /* Just-Works repairing policy */
> + if (confirm_hint && device_is_paired(device, type)) {
> + if (main_opts.jw_repairing == JW_REPAIRING_NEVER) {
> + btd_adapter_confirm_reply(device->adapter,
> + &device->bdaddr,
> + type, FALSE);
> + return 0;
> + } else if (main_opts.jw_repairing == JW_REPAIRING_ALWAYS) {
> + btd_adapter_confirm_reply(device->adapter,
> + &device->bdaddr,
> + type, TRUE);
> + return 0;
> + }
> + }
> +
> auth = new_auth(device, type, AUTH_TYPE_CONFIRM, FALSE);
> if (!auth)
> return -EPERM;
> diff --git a/src/hcid.h b/src/hcid.h
> index adea85ce2..ca405fde4 100644
> --- a/src/hcid.h
> +++ b/src/hcid.h
> @@ -35,6 +35,12 @@ typedef enum {
> BT_GATT_CACHE_NO,
> } bt_gatt_cache_t;
>
> +enum jw_repairing_t {
> + JW_REPAIRING_NEVER,
> + JW_REPAIRING_CONFIRM,
> + JW_REPAIRING_ALWAYS,
> +};
> +
> struct main_opts {
> char *name;
> uint32_t class;
> @@ -58,6 +64,8 @@ struct main_opts {
> uint16_t gatt_mtu;
>
> uint8_t key_size;
> +
> + enum jw_repairing_t jw_repairing;
> };
>
> extern struct main_opts main_opts;
> diff --git a/src/main.c b/src/main.c
> index 1a6ab36a3..fc8c869fc 100644
> --- a/src/main.c
> +++ b/src/main.c
> @@ -93,6 +93,7 @@ static const char *supported_options[] = {
> "MultiProfile",
> "FastConnectable",
> "Privacy",
> + "JustWorksRepairing",
> NULL
> };
>
> @@ -193,6 +194,20 @@ static bt_gatt_cache_t parse_gatt_cache(const char *cache)
> }
> }
>
> +static enum jw_repairing_t parse_jw_repairing(const char *jw_repairing)
> +{
> + if (!strcmp(jw_repairing, "never")) {
> + return JW_REPAIRING_NEVER;
> + } else if (!strcmp(jw_repairing, "confirm")) {
> + return JW_REPAIRING_CONFIRM;
> + } else if (!strcmp(jw_repairing, "always")) {
> + return JW_REPAIRING_ALWAYS;
> + } else {
> + return JW_REPAIRING_NEVER;
> + }
> +}
> +
> +
> static void check_options(GKeyFile *config, const char *group,
> const char **options)
> {
> @@ -331,6 +346,18 @@ static void parse_config(GKeyFile *config)
> g_free(str);
> }
>
> + str = g_key_file_get_string(config, "General",
> + "JustWorksRepairing", &err);
> + if (err) {
> + DBG("%s", err->message);
> + g_clear_error(&err);
> + main_opts.jw_repairing = JW_REPAIRING_NEVER;
> + } else {
> + DBG("just_works_repairing=%s", str);
> + main_opts.jw_repairing = parse_jw_repairing(str);
> + g_free(str);
> + }
> +
> str = g_key_file_get_string(config, "General", "Name", &err);
> if (err) {
> DBG("%s", err->message);
> diff --git a/src/main.conf b/src/main.conf
> index 40687a755..bb5ff5b15 100644
> --- a/src/main.conf
> +++ b/src/main.conf
> @@ -72,6 +72,11 @@
> # Defaults to "off"
> # Privacy = off
>
> +# Specify the policy to the JUST-WORKS repairing initiated by peer
> +# Possible values: "never", "confirm", "always"
> +# Defaults to "never"
> +#JustWorksRepairing = never
> +
> [GATT]
> # GATT attribute cache.
> # Possible values:
> --
> 2.25.0.265.gbab2e86ba0-goog
Applied, thanks.
--
Luiz Augusto von Dentz
