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extmod/modlwip: Add support for leaving multicast groups.

This commit is contained in:
MrJake222 2021-09-16 19:49:42 +02:00 committed by Damien George
parent 01514e80c9
commit 69719927f1
1 changed files with 10 additions and 2 deletions
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12
extmod/modlwip.c
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@ -66,6 +66,7 @@
// All socket options should be globally distinct,
// because we ignore option levels for efficiency.
#define IP_ADD_MEMBERSHIP 0x400
#define IP_DROP_MEMBERSHIP 0x401
// For compatibilily with older lwIP versions.
#ifndef ip_set_option
@ -1376,7 +1377,8 @@ STATIC mp_obj_t lwip_socket_setsockopt(size_t n_args, const mp_obj_t *args) {
}
// level: IPPROTO_IP
case IP_ADD_MEMBERSHIP: {
case IP_ADD_MEMBERSHIP:
case IP_DROP_MEMBERSHIP: {
mp_buffer_info_t bufinfo;
mp_get_buffer_raise(args[3], &bufinfo, MP_BUFFER_READ);
if (bufinfo.len != sizeof(ip_addr_t) * 2) {
@ -1384,7 +1386,12 @@ STATIC mp_obj_t lwip_socket_setsockopt(size_t n_args, const mp_obj_t *args) {
}
// POSIX setsockopt has order: group addr, if addr, lwIP has it vice-versa
err_t err = igmp_joingroup((ip_addr_t *)bufinfo.buf + 1, bufinfo.buf);
err_t err;
if (opt == IP_ADD_MEMBERSHIP) {
err = igmp_joingroup((ip_addr_t *)bufinfo.buf + 1, bufinfo.buf);
} else {
err = igmp_leavegroup((ip_addr_t *)bufinfo.buf + 1, bufinfo.buf);
}
if (err != ERR_OK) {
mp_raise_OSError(error_lookup_table[-err]);
}
@ -1769,6 +1776,7 @@ STATIC const mp_rom_map_elem_t mp_module_lwip_globals_table[] = {
{ MP_ROM_QSTR(MP_QSTR_IPPROTO_IP), MP_ROM_INT(0) },
{ MP_ROM_QSTR(MP_QSTR_IP_ADD_MEMBERSHIP), MP_ROM_INT(IP_ADD_MEMBERSHIP) },
{ MP_ROM_QSTR(MP_QSTR_IP_DROP_MEMBERSHIP), MP_ROM_INT(IP_DROP_MEMBERSHIP) },
};
STATIC MP_DEFINE_CONST_DICT(mp_module_lwip_globals, mp_module_lwip_globals_table);