43 lines
825 B
C
43 lines
825 B
C
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K_SEM_DEFINE(dhcp_ready, 0, 1);
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static bool
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check_dhcp(struct net_if *iface)
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{
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// Scan IP addresses allocated for Unicast
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for (int i = 0; i < NET_IF_MAX_IPV4_ADDR; i++) {
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if (iface->config.ip.ipv4->unicast[i].addr_type != NET_ADDR_DHCP)
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continue;
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return true;
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}
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return false;
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}
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static void
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dhcp_handler(struct net_mgmt_event_callback *cb,
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uint32_t ev,
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struct net_if *iface)
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{
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if (ev != NET_EVENT_IPV4_ADDR_ADD)
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return;
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if (check_dhcp(iface))
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k_sem_give(&dhcp_ready);
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}
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static void
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setup_dhcp(void)
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{
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static struct net_mgmt_event_callback cb;
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net_mgmt_init_event_callback(&cb, dhcp_handler, NET_EVENT_IPV4_ADDR_ADD);
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net_mgmt_add_event_callback(&cb);
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struct net_if *iface = net_if_get_default();
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if (!check_dhcp(iface)) {
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net_dhcpv4_start(iface);
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k_sem_take(&dhcp_ready, K_FOREVER);
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}
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}
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