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https://git.kernel.org/pub/scm/network/wireless/iwd.git
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hwsim: Receive multicast netlink event for NEW/DEL radio commands
Kernel sends HWSIM_CMD_NEW_RADIO and HWSIM_CMD_DEL_RADIO multicast events when new radio have been created and when existing one has been deleted. The events are sent to "config" netlink multicast group. The hwsim catches these events and uses the information to monitor what simulated radios are created and deleted in the system.
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8e3a17cf56
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@ -34,8 +34,8 @@ enum {
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HWSIM_CMD_REGISTER,
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HWSIM_CMD_REGISTER,
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HWSIM_CMD_FRAME,
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HWSIM_CMD_FRAME,
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HWSIM_CMD_TX_INFO_FRAME,
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HWSIM_CMD_TX_INFO_FRAME,
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HWSIM_CMD_CREATE_RADIO,
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HWSIM_CMD_NEW_RADIO,
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HWSIM_CMD_DESTROY_RADIO,
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HWSIM_CMD_DEL_RADIO,
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__HWSIM_CMD_MAX,
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__HWSIM_CMD_MAX,
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};
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};
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#define HWSIM_CMD_MAX (_HWSIM_CMD_MAX - 1)
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#define HWSIM_CMD_MAX (_HWSIM_CMD_MAX - 1)
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@ -128,12 +128,40 @@ done:
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l_main_quit();
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l_main_quit();
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}
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}
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static void hwsim_config(struct l_genl_msg *msg, void *user_data)
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{
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struct l_genl_attr attr;
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uint16_t type, len;
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const void *data;
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uint8_t cmd;
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cmd = l_genl_msg_get_command(msg);
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l_debug("Config changed cmd %u", cmd);
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if (!l_genl_attr_init(&attr, msg))
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return;
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while (l_genl_attr_next(&attr, &type, &len, &data)) {
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l_debug("\tattr type %d len %d", type, len);
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}
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}
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static void hwsim_ready(void *user_data)
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static void hwsim_ready(void *user_data)
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{
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{
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struct l_genl_msg *msg;
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struct l_genl_msg *msg;
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int ret;
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ret = l_genl_family_register(hwsim, "config", hwsim_config,
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NULL, NULL);
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if (ret < 0) {
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fprintf(stderr, "Failed to create hwsim config listener\n");
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l_main_quit();
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return;
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}
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if (create_action) {
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if (create_action) {
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msg = l_genl_msg_new_sized(HWSIM_CMD_CREATE_RADIO,
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msg = l_genl_msg_new_sized(HWSIM_CMD_NEW_RADIO,
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keep_radios ? 0 : 4);
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keep_radios ? 0 : 4);
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if (!keep_radios)
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if (!keep_radios)
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@ -147,7 +175,7 @@ static void hwsim_ready(void *user_data)
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} else if (destroy_action) {
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} else if (destroy_action) {
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uint32_t id = atoi(destroy_action);
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uint32_t id = atoi(destroy_action);
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msg = l_genl_msg_new_sized(HWSIM_CMD_DESTROY_RADIO, 8);
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msg = l_genl_msg_new_sized(HWSIM_CMD_DEL_RADIO, 8);
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l_genl_msg_append_attr(msg, HWSIM_ATTR_RADIO_ID, 4, &id);
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l_genl_msg_append_attr(msg, HWSIM_ATTR_RADIO_ID, 4, &id);
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l_genl_family_send(hwsim, msg, destroy_callback, NULL, NULL);
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l_genl_family_send(hwsim, msg, destroy_callback, NULL, NULL);
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l_genl_msg_unref(msg);
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l_genl_msg_unref(msg);
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