5  * SPDX-License-Identifier: Apache-2.0
25 	return ppp_fsm_input(&ctx->ipcp.fsm, PPP_IPCP, pkt);  in ipcp_handle()
34 			    struct in_addr *addr)  in ipcp_add_address()  argument
36 	net_pkt_write_u8(pkt, 1 + 1 + sizeof(addr->s_addr));  in ipcp_add_address()
37 	return net_pkt_write(pkt, &addr->s_addr, sizeof(addr->s_addr));  in ipcp_add_address()
42 	return ipcp_add_address(ctx, pkt, &ctx->ipcp.my_options.address);  in ipcp_add_ip_address()
47 	return ipcp_add_address(ctx, pkt, &ctx->ipcp.my_options.dns1_address);  in ipcp_add_dns1()
52 	return ipcp_add_address(ctx, pkt, &ctx->ipcp.my_options.dns2_address);  in ipcp_add_dns2()
56 				  struct in_addr *addr)  in ipcp_ack_check_address()  argument
62 		return -EINVAL;  in ipcp_ack_check_address()
70 	if (memcmp(&ack_addr, addr, sizeof(ack_addr)) != 0) {  in ipcp_ack_check_address()
71 		return -EINVAL;  in ipcp_ack_check_address()
81 				      &ctx->ipcp.my_options.address);  in ipcp_ack_ip_address()
88 				      &ctx->ipcp.my_options.dns1_address);  in ipcp_ack_dns1()
95 				      &ctx->ipcp.my_options.dns2_address);  in ipcp_ack_dns2()
99 				     struct in_addr *addr)  in ipcp_nak_override_address()  argument
101 	if (oplen != sizeof(*addr)) {  in ipcp_nak_override_address()
102 		return -EINVAL;  in ipcp_nak_override_address()
105 	return net_pkt_read(pkt, addr, sizeof(*addr));  in ipcp_nak_override_address()
112 					 &ctx->ipcp.my_options.address);  in ipcp_nak_ip_address()
119 					 &ctx->ipcp.my_options.dns1_address);  in ipcp_nak_dns1()
126 					 &ctx->ipcp.my_options.dns2_address);  in ipcp_nak_dns2()
147 	struct in_addr addr;  member
157 	ret = net_pkt_read(pkt, &data->addr, sizeof(data->addr));  in ipcp_dns_address_parse()
160 		return -EMSGSIZE;  in ipcp_dns_address_parse()
164 	if (data->addr.s_addr == INADDR_ANY) {  in ipcp_dns_address_parse()
165 		NET_DBG("[IPCP] zeroes rcvd as %s addr, sending NAK with our %s addr",  in ipcp_dns_address_parse()
167 		return -EINVAL;  in ipcp_dns_address_parse()
170 	data->addr_present = true;  in ipcp_dns_address_parse()
182 	ret = net_pkt_read(pkt, &data->addr, sizeof(data->addr));  in ipcp_ip_address_parse()
185 		return -EMSGSIZE;  in ipcp_ip_address_parse()
189 	/* Request is zeros? Give our IP address in ConfNak */  in ipcp_ip_address_parse()
190 	if (data->addr.s_addr == INADDR_ANY) {  in ipcp_ip_address_parse()
191 		NET_DBG("[IPCP] zeroes rcvd as %s addr, sending NAK with our %s addr",  in ipcp_ip_address_parse()
192 			"IP", "IP");  in ipcp_ip_address_parse()
193 		return -EINVAL;  in ipcp_ip_address_parse()
200 		addr_str = net_addr_ntop(AF_INET, &data->addr, dst,  in ipcp_ip_address_parse()
207 	data->addr_present = true;  in ipcp_ip_address_parse()
292 			fsm->name, fsm, "peer ");  in ipcp_config_info_req()
300 	 *   - check that the IP address can be accepted  in ipcp_config_info_req()
303 	memcpy(&ctx->ipcp.peer_options.address, &data.addr, sizeof(data.addr));  in ipcp_config_info_req()
318 		.sin_addr = ctx->ipcp.my_options.dns1_address  in ipcp_set_dns_servers()
323 		.sin_addr = ctx->ipcp.my_options.dns2_address  in ipcp_set_dns_servers()
363 	if (!ctx->ipcp.my_options.address.s_addr) {  in ipcp_config_info_nack()
364 		return -EINVAL;  in ipcp_config_info_nack()
374 	ppp_fsm_lower_down(&ctx->ipcp.fsm);  in ipcp_lower_down()
379 	ppp_fsm_lower_up(&ctx->ipcp.fsm);  in ipcp_lower_up()
384 	ppp_fsm_open(&ctx->ipcp.fsm);  in ipcp_open()
389 	ppp_fsm_close(&ctx->ipcp.fsm, reason);  in ipcp_close()
396 	struct net_if_addr *addr;  in ipcp_up()  local
400 	if (ctx->is_ipcp_up) {  in ipcp_up()
404 	addr_str = net_addr_ntop(AF_INET, &ctx->ipcp.my_options.address,  in ipcp_up()
407 	addr = net_if_ipv4_addr_add(ctx->iface,  in ipcp_up()
408 				    &ctx->ipcp.my_options.address,  in ipcp_up()
411 	if (addr == NULL) {  in ipcp_up()
412 		NET_ERR("Could not set IP address %s", addr_str);  in ipcp_up()
419 	ctx->is_ipcp_up = true;  in ipcp_up()
421 	NET_DBG("[%s/%p] Current state %s (%d)", fsm->name, fsm,  in ipcp_up()
422 		ppp_state_str(fsm->state), fsm->state);  in ipcp_up()
431 	if (ctx->ipcp.my_options.address.s_addr) {  in ipcp_down()
433 			ctx->iface, &ctx->ipcp.my_options.address);  in ipcp_down()
435 	memset(&ctx->ipcp.my_options.address, 0,  in ipcp_down()
436 	       sizeof(ctx->ipcp.my_options.address));  in ipcp_down()
437 	memset(&ctx->ipcp.my_options.dns1_address, 0,  in ipcp_down()
438 	       sizeof(ctx->ipcp.my_options.dns1_address));  in ipcp_down()
439 	memset(&ctx->ipcp.my_options.dns2_address, 0,  in ipcp_down()
440 	       sizeof(ctx->ipcp.my_options.dns2_address));  in ipcp_down()
442 	if (!ctx->is_ipcp_up) {  in ipcp_down()
446 	ctx->is_ipcp_up = false;  in ipcp_down()
456 	if (!ctx->is_ipcp_open) {  in ipcp_finished()
460 	ctx->is_ipcp_open = false;  in ipcp_finished()
473 		&ctx->ipcp.fsm);  in ipcp_init()
475 	memset(&ctx->ipcp.fsm, 0, sizeof(ctx->ipcp.fsm));  in ipcp_init()
477 	ppp_fsm_init(&ctx->ipcp.fsm, PPP_IPCP);  in ipcp_init()
479 	ppp_fsm_name_set(&ctx->ipcp.fsm, ppp_proto2str(PPP_IPCP));  in ipcp_init()
481 	ctx->ipcp.fsm.my_options.info = ipcp_my_options;  in ipcp_init()
482 	ctx->ipcp.fsm.my_options.data = ctx->ipcp.my_options_data;  in ipcp_init()
483 	ctx->ipcp.fsm.my_options.count = ARRAY_SIZE(ipcp_my_options);  in ipcp_init()
485 	ctx->ipcp.fsm.cb.up = ipcp_up;  in ipcp_init()
486 	ctx->ipcp.fsm.cb.down = ipcp_down;  in ipcp_init()
487 	ctx->ipcp.fsm.cb.finished = ipcp_finished;  in ipcp_init()
488 	ctx->ipcp.fsm.cb.proto_reject = ipcp_proto_reject;  in ipcp_init()
489 	ctx->ipcp.fsm.cb.config_info_add = ipcp_config_info_add;  in ipcp_init()
490 	ctx->ipcp.fsm.cb.config_info_req = ipcp_config_info_req;  in ipcp_init()
491 	ctx->ipcp.fsm.cb.config_info_nack = ipcp_config_info_nack;  in ipcp_init()
492 	ctx->ipcp.fsm.cb.config_info_rej = ppp_my_options_parse_conf_rej;  in ipcp_init()