1 /*
2 * Copyright (c) 2019 Intel Corporation.
3 *
4 * SPDX-License-Identifier: Apache-2.0
5 */
6
7 #include <zephyr/logging/log.h>
8 LOG_MODULE_DECLARE(net_l2_ppp, CONFIG_NET_L2_PPP_LOG_LEVEL);
9
10 #include <zephyr/net/net_core.h>
11 #include <zephyr/net/net_pkt.h>
12 #include <zephyr/sys/iterable_sections.h>
13 #include <zephyr/net/ppp.h>
14
15 #include "net_private.h"
16
17 #include "ppp_internal.h"
18
ppp_network_up(struct ppp_context * ctx,int proto)19 void ppp_network_up(struct ppp_context *ctx, int proto)
20 {
21 if (ctx->network_protos_up == 0) {
22 ppp_change_phase(ctx, PPP_RUNNING);
23 }
24
25 ctx->network_protos_up++;
26
27 NET_DBG("[%p] Proto %s (0x%04x) %s (%d)", ctx, ppp_proto2str(proto),
28 proto, "up", ctx->network_protos_up);
29 }
30
ppp_network_down(struct ppp_context * ctx,int proto)31 void ppp_network_down(struct ppp_context *ctx, int proto)
32 {
33 ctx->network_protos_up--;
34
35 if (ctx->network_protos_up <= 0) {
36 ctx->network_protos_up = 0;
37 ppp_change_phase(ctx, PPP_TERMINATE);
38 }
39
40 NET_DBG("[%p] Proto %s (0x%04x) %s (%d)", ctx, ppp_proto2str(proto),
41 proto, "down", ctx->network_protos_up);
42 }
43
ppp_network_done(struct ppp_context * ctx,int proto)44 void ppp_network_done(struct ppp_context *ctx, int proto)
45 {
46 ctx->network_protos_up--;
47 if (ctx->network_protos_up <= 0) {
48 const struct ppp_protocol_handler *ppp_proto = ppp_lcp_get();
49
50 if (ppp_proto) {
51 ppp_proto->close(ctx, "All networks down");
52 }
53 }
54 }
55
ppp_network_all_down(struct ppp_context * ctx)56 void ppp_network_all_down(struct ppp_context *ctx)
57 {
58 STRUCT_SECTION_FOREACH(ppp_protocol_handler, proto) {
59 if (proto->protocol != PPP_LCP && proto->lower_down) {
60 proto->lower_down(ctx);
61 }
62
63 if (proto->protocol < 0xC000 && proto->close) {
64 ctx->network_protos_open--;
65 proto->close(ctx, "LCP down");
66 }
67 }
68
69 if (ctx->network_protos_open > 0) {
70 NET_WARN("Not all network protocols were closed (%d)",
71 ctx->network_protos_open);
72 }
73
74 ctx->network_protos_open = 0;
75 }
76
