kopia lustrzana https://github.com/espressif/esp-idf
Merge branch 'bufix/Backport_some_lwip_bugs_for_4.2_0417' into 'release/v4.2'
lwip: Add security fixes and other features and bufixes to v4.2 See merge request espressif/esp-idf!23238release/v4.2
commit
a9cac7605b
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@ -245,6 +245,14 @@ menu "LWIP"
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server. Last valid DHCP configuration is stored in nvs and restored after reset/power-up. If IP is still
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available, there is no need for sending discovery message to DHCP server and save some time.
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config LWIP_DHCP_COARSE_TIMER_SECS
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int "DHCP coarse timer interval(s)"
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default 1
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range 1 10
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help
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Set DHCP coarse interval in seconds.
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A higher value will be less precise but cost less power consumption.
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menu "DHCP server"
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config LWIP_DHCPS_LEASE_UNIT
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@ -420,7 +428,13 @@ menu "LWIP"
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int "Maximum segment lifetime (MSL)"
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default 60000
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help
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Set maximum segment lifetime in in milliseconds.
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Set maximum segment lifetime in milliseconds.
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config LWIP_TCP_FIN_WAIT_TIMEOUT
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int "Maximum FIN segment lifetime"
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default 20000
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help
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Set maximum segment lifetime in milliseconds.
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config LWIP_TCP_SND_BUF_DEFAULT
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int "Default send buffer size"
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@ -1 +1 @@
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Subproject commit 2195f7416fb3136831babf3e96c027a73075bd4f
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Subproject commit 6bb132e3797d5449a923804c75c57d458920f8ac
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@ -46,6 +46,12 @@
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#include "sntp.h"
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#include "netif/dhcp_state.h"
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#ifdef __cplusplus
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extern "C"
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{
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#endif
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/* Enable all Espressif-only options */
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/*
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@ -255,6 +261,33 @@
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*/
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#define ESP_DHCP_DISABLE_CLIENT_ID CONFIG_LWIP_DHCP_DISABLE_CLIENT_ID
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#define DHCP_DEFINE_CUSTOM_TIMEOUTS 1
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/* Since for embedded devices it's not that hard to miss a discover packet, so lower
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* the discover retry backoff time from (2,4,8,16,32,60,60)s to (500m,1,2,4,8,15,15)s.
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*/
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#define DHCP_REQUEST_TIMEOUT_SEQUENCE(state, tries) (state == DHCP_STATE_REQUESTING ? \
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(uint16_t)(1 * 1000) : \
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(uint16_t)(((tries) < 6 ? 1 << (tries) : 60) * 250))
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#define DHCP_COARSE_TIMER_SECS CONFIG_LWIP_DHCP_COARSE_TIMER_SECS
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static inline uint32_t timeout_from_offered(uint32_t lease, uint32_t min)
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{
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uint32_t timeout = lease;
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if (timeout == 0) {
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timeout = min;
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}
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timeout = (timeout + DHCP_COARSE_TIMER_SECS - 1) / DHCP_COARSE_TIMER_SECS;
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return timeout;
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}
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#define DHCP_CALC_TIMEOUT_FROM_OFFERED_T0_LEASE(dhcp) \
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timeout_from_offered((dhcp)->offered_t0_lease, 120)
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#define DHCP_CALC_TIMEOUT_FROM_OFFERED_T1_RENEW(dhcp) \
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timeout_from_offered((dhcp)->offered_t1_renew, (dhcp)->t0_timeout >> 1 /* 50% */)
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#define DHCP_CALC_TIMEOUT_FROM_OFFERED_T2_REBIND(dhcp) \
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timeout_from_offered((dhcp)->offered_t2_rebind, ((dhcp)->t0_timeout / 8) * 7 /* 87.5% */)
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/**
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* CONFIG_LWIP_DHCP_RESTORE_LAST_IP==1: Last valid IP address obtained from DHCP server
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* is restored after reset/power-up.
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@ -367,6 +400,11 @@
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*/
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#define TCP_MSS CONFIG_LWIP_TCP_MSS
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/**
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* TCP_FIN_WAIT_TIMEOUT: The maximum FIN segment lifetime in milliseconds
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*/
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#define TCP_FIN_WAIT_TIMEOUT CONFIG_LWIP_TCP_FIN_WAIT_TIMEOUT
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/**
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* TCP_TMR_INTERVAL: TCP timer interval
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*/
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@ -899,9 +937,25 @@ u32_t lwip_hook_tcp_isn(const struct ip_addr *local_ip, u16_t local_port,
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#ifdef CONFIG_LWIP_TIMERS_ONDEMAND
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#define ESP_LWIP_IGMP_TIMERS_ONDEMAND 1
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#define ESP_LWIP_MLD6_TIMERS_ONDEMAND 1
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#define ESP_LWIP_DHCP_FINE_TIMERS_ONDEMAND 1
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#define ESP_LWIP_DNS_TIMERS_ONDEMAND 1
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#if IP_REASSEMBLY
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#define ESP_LWIP_IP4_REASSEMBLY_TIMERS_ONDEMAND 1
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#endif /* IP_REASSEMBLY */
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#if LWIP_IPV6_REASS
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#define ESP_LWIP_IP6_REASSEMBLY_TIMERS_ONDEMAND 1
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#endif /* LWIP_IPV6_REASS */
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#else
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#define ESP_LWIP_IGMP_TIMERS_ONDEMAND 0
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#define ESP_LWIP_MLD6_TIMERS_ONDEMAND 0
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#define ESP_LWIP_DHCP_FINE_TIMERS_ONDEMAND 0
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#define ESP_LWIP_DNS_TIMERS_ONDEMAND 0
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#if IP_REASSEMBLY
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#define ESP_LWIP_IP4_REASSEMBLY_TIMERS_ONDEMAND 0
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#endif /* IP_REASSEMBLY */
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#if LWIP_IPV6_REASS
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#define ESP_LWIP_IP6_REASSEMBLY_TIMERS_ONDEMAND 0
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#endif /* LWIP_IPV6_REASS */
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#endif
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#define TCP_SND_BUF CONFIG_LWIP_TCP_SND_BUF_DEFAULT
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@ -960,4 +1014,8 @@ u32_t lwip_hook_tcp_isn(const struct ip_addr *local_ip, u16_t local_port,
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#define SOC_SEND_LOG //printf
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#ifdef __cplusplus
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}
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#endif
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#endif /* __LWIPOPTS_H__ */
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@ -0,0 +1 @@
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CONFIG_LWIP_TIMERS_ONDEMAND=n
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@ -374,6 +374,7 @@ Most lwIP RAM usage is on-demand, as RAM is allocated from the heap as needed. T
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- Reducing :ref:`CONFIG_LWIP_MAX_SOCKETS` reduces the maximum number of sockets in the system. This will also cause TCP sockets in the ``WAIT_CLOSE`` state to be closed and recycled more rapidly (if needed to open a new socket), further reducing peak RAM usage.
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- Reducing :ref:`CONFIG_LWIP_TCPIP_RECVMBOX_SIZE`, :ref:`CONFIG_LWIP_TCP_RECVMBOX_SIZE` and :ref:`CONFIG_LWIP_UDP_RECVMBOX_SIZE` reduce memory usage at the expense of throughput, depending on usage.
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- Reducing :ref:`CONFIG_LWIP_TCP_MSL`, :ref:`CONFIG_LWIP_TCP_FIN_WAIT_TIMEOUT` reduces the maximum segment lifetime in the system. This will also cause TCP sockets in the ``TIME_WAIT``, ``FIN_WAIT_2`` state to be closed and recycled more rapidly
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If using Wi-Fi, please also refer to :ref:`wifi-buffer-usage`.
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