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extmod/modnetwork: Implement IPv6 API to set and get NIC configuration.

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This commit implements a new <AbstractNIC>.ipconfig() function for the NIC
classes that use lwIP, to set and retrieve network configuration for a NIC.
Currently this method supports:
- ipconfig("addr4"): obtain a tuple (addr, netmask) of the currently
  configured ipv4 address
- ipconfig("addr6"): obtain a list of tuples (addr, state,
  prefered_lifetime, valid_lifetime) of all currently active ipv6
  addresses; this includes static, slaac and link-local addresses
- ipconfig("has_dhcp4"): whether ipv4 dhcp has supplied an address
- ipconfig("has_autoconf6"): if there is a valid, non-static ipv6 address
- ipconfig(addr4="1.2.3.4/24"): to set the ipv4 address and netmask
- ipconfig(addr6="2a01::2"): to set a static ipv6 address; note that this
  does not configure an interface route, as this does not seem supported by
  lwIP
- ipconfig(autoconf6=True): to enable ipv6 network configuration with slaac
- ipconfig(gw4="1.2.3.1"): to set the ipv4 gateway
- ipconfig(dhcp4=True): enable ipv4 dhcp; this sets ipv4 address, netmask,
  gateway and a dns server
- ipconfig(dhcp4=False): stops dhcp, releases the ip, and clears the
  configured ipv4 address.
- ipconfig(dhcp6=True): enable stateless dhcpv6 to obtain a dns server

There is also a new global configuration function network.ipconfig() that
supports the following:
- network.ipconfig(dns="2a01::2"): set the primary dns server (can be a
  ipv4 or ipv6 address)
- network.ipconfig(prefer=6): to prefer ipv6 addresses to be returned as
  dns responses (falling back to ipv4 if the host does not have an ipv6
  address); note that this does not flush the dns cache, so if a host is
  already in the dns cache with its v4 address, subsequent lookups will
  return that address even if prefer=6 is set

This interface replaces NIC.ifconfig() completely, and ifconfig() should be
marked as deprecated and removed in a future version.

Signed-off-by: Felix Dörre <felix@dogcraft.de>
This commit is contained in:
Felix Dörre
2023-10-10 16:13:24 +00:00
committed by Damien George
parent 52c678c6f8
commit 1c6012b0b5
7 changed files with 345 additions and 1 deletions
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8
extmod/network_esp_hosted.c
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@@ -204,6 +204,13 @@ static mp_obj_t network_esp_hosted_ifconfig(size_t n_args, const mp_obj_t *args)
}
static MP_DEFINE_CONST_FUN_OBJ_VAR_BETWEEN(network_esp_hosted_ifconfig_obj, 1, 2, network_esp_hosted_ifconfig);
static mp_obj_t network_esp_hosted_ipconfig(size_t n_args, const mp_obj_t *args, mp_map_t *kwargs) {
esp_hosted_obj_t *self = MP_OBJ_TO_PTR(args[0]);
void *netif = esp_hosted_wifi_get_netif(self->itf);
return mod_network_nic_ipconfig(netif, n_args - 1, args + 1, kwargs);
}
static MP_DEFINE_CONST_FUN_OBJ_KW(network_esp_hosted_ipconfig_obj, 1, network_esp_hosted_ipconfig);
static mp_obj_t network_esp_hosted_config(size_t n_args, const mp_obj_t *args, mp_map_t *kwargs) {
esp_hosted_obj_t *self = MP_OBJ_TO_PTR(args[0]);
@@ -299,6 +306,7 @@ static const mp_rom_map_elem_t network_esp_hosted_locals_dict_table[] = {
{ MP_ROM_QSTR(MP_QSTR_disconnect), MP_ROM_PTR(&network_esp_hosted_disconnect_obj) },
{ MP_ROM_QSTR(MP_QSTR_isconnected), MP_ROM_PTR(&network_esp_hosted_isconnected_obj) },
{ MP_ROM_QSTR(MP_QSTR_ifconfig), MP_ROM_PTR(&network_esp_hosted_ifconfig_obj) },
{ MP_ROM_QSTR(MP_QSTR_ipconfig), MP_ROM_PTR(&network_esp_hosted_ipconfig_obj) },
{ MP_ROM_QSTR(MP_QSTR_config), MP_ROM_PTR(&network_esp_hosted_config_obj) },
{ MP_ROM_QSTR(MP_QSTR_status), MP_ROM_PTR(&network_esp_hosted_status_obj) },
{ MP_ROM_QSTR(MP_QSTR_OPEN), MP_ROM_INT(ESP_HOSTED_SEC_OPEN) },