esp_netif: initialize TCP ISN hook if enabled in configuration
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@ -33,6 +33,10 @@
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#include "netif/wlanif.h"
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#include "netif/wlanif.h"
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#include "netif/ethernetif.h"
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#include "netif/ethernetif.h"
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#if CONFIG_LWIP_TCP_ISN_HOOK
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#include "tcp_isn.h"
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#endif
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#include "dhcpserver/dhcpserver.h"
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#include "dhcpserver/dhcpserver.h"
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#include "dhcpserver/dhcpserver_options.h"
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#include "dhcpserver/dhcpserver_options.h"
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@ -102,6 +106,18 @@ void tcpip_adapter_init(void)
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int ret;
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int ret;
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if (tcpip_inited == false) {
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if (tcpip_inited == false) {
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#if CONFIG_LWIP_TCP_ISN_HOOK
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uint8_t rand_buf[16];
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/*
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* This is early startup code where WiFi/BT is yet to be enabled and hence
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* relevant entropy source is not available. However, bootloader enables
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* SAR ADC based entropy source at its initialization, and our requirement
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* of random bytes is pretty small (16), so we can assume that following
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* API will provide sufficiently random data.
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*/
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esp_fill_random(rand_buf, sizeof(rand_buf));
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lwip_init_tcp_isn(esp_log_timestamp(), rand_buf);
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#endif
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tcpip_inited = true;
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tcpip_inited = true;
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tcpip_init(NULL, NULL);
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tcpip_init(NULL, NULL);
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