linux/lwip: Wrap some IO posix functions
* to workaourd the FreeRTOS EINTR issue (when building without lwip)
* to correctly choose the sub-system based on fd (when building with
lwip) -- passing control to either linux/system or to lwip
This commit also addapts tapio-if to provide DHCP client by default and
configurable settings for static IP
lwip/netif struct has two places to store user's data
* netif->state (1 void*) but that might be occupied in special cases
* netif->client_dtat (n void*s) but that must be enabled in opts.h
This commit stores esp_netif_t* primarily in state, but if any special
netif is enabled in menuconfig (bridgeif, pppos), it uses netif->client_data.
This commit also fixes incorrect esp_netif that is attached to
IP_EVENT_GOT_IP6 event posted by pppos interfaces in:
c585618b97/components/esp_netif/lwip/esp_netif_lwip_ppp.c (L114)
Closes https://github.com/espressif/esp-idf/issues/9345
This function removes the following legacy atomic CAS functions:
From compare_set.h (file removed):
- compare_and_set_native()
- compare_and_set_extram()
From portmacro.h
- uxPortCompareSet()
- uxPortCompareSetExtram()
Users should call esp_cpu_compare_and_set() instead as this function hides the details
of atomic CAS on internal and external RAM addresses.
Due to the removal of compare_set.h, some missing header includes are also fixed in this commit.
Fix dependency tree so that lwip doesn't depend on any specific network
interface component.
Network interface drivers shall depend on esp_netif.
esp_netif shall depend on lwip (but not on any specific interface
driver) -- it optionally depends on vfs and esp_eth (need ethernet
header for L2/bridge mode)
If on-demand timers (IGMP+MLD6) were enabled, idf updated user config
MEMP_NUM_SYS_TIMEOUT. The implementation of these timers are in lwip
project so the internal system timeout shall be updated accordingly,
enabling port layers to modify MEMP_NUM_SYS_TIMEOUT.
Closes https://github.com/espressif/esp-idf/issues/9150
This commit updates and refactors the AFL host test mock as follows:
- Isolates the mock so that it only relies on lwip component and linux stdlib headers
- Grouped all mock functions in 'esp32_mock.h/c'
- Updates the lwip esp32 port files to include 'esp32_mock.h' when building for linux
- Use host stdlib headers instead of xtensa stdlib headers
* Cherry-pick important fixes to 2.1.2-esp
- CVE-2020-22283: Attacker could craft a packet that would disclose 8 bytes of some heap memory:
- icmp6: Don't copy too much data
- icmp6: Fix copying of chained pbuf in reply
- icmp6: keep to the RFC and send as much as possible with icmp6 error messages
- CVE-2020-22284: ZEP - ZigBee Encapsulation Protocol/6LoWPAN is not supported in IDF,
the netif module (zepif.c) is not included in the build, but users can still inject
the file into compilation process, implement IO interface and use this.
- zepif: Copy possibly chained output pbuf properly
- Add #define for minimum IPv6 MTU length
- pbuf: Add pbuf_copy_partial_pbuf library function
* PPPoS: Fix null-deref when processing double break packet
- pppos: fix in_tail null (espressif/esp-lwip@537c69d5)
- PPP: Add test exhibiting empty packet null-deref (espressif/esp-lwip@202a07da)
* NAPT: Fix PBUF_REF type to clone the pbuf before forwarding
- IP-FORWARD: If packet-type is PBUF_REF clone it before forwarding
- Add NAPT unit test to exercise NAT feature for both RAM and REF pbuf types
* version: Update version numbers to match 2.1.2-esp
* Update submodule: 2749568fe1...76303df238
- test/napt: Add unit test for IP forward with PBUF_REF (espressif/esp-lwip@76303df2)
- napt: Fix PBUF_REF type to clone the pbuf before forwarding (espressif/esp-lwip@39068263)
- version: Update version numbers to match 2.1.2-esp (espressif/esp-lwip@2b922919)
- pppos: fix in_tail null (espressif/esp-lwip@537c69d5)
- PPP: Add test exhibiting empty packet null-deref (espressif/esp-lwip@202a07da)
- pbuf: Add pbuf_copy_partial_pbuf library function (espressif/esp-lwip@1c9cd9c1)
- Add #define for minimum IPv6 MTU length (espressif/esp-lwip@d2dc577b)
- zepif: Copy possibly chained output pbuf properly (espressif/esp-lwip@64ab7f2a)
- icmp6: Don't copy too much data (espressif/esp-lwip@4a64731b)
- icmp6: Fix copying of chained pbuf in reply (espressif/esp-lwip@7c822ff4)
- icmp6: keep to the RFC and send as much as possible with icmp6 error messages (espressif/esp-lwip@29100ab6)
- dns: Add API to clear dns cache (espressif/esp-lwip@ee59f77d)
- CI: Fixed adding gitlab key (espressif/esp-lwip@5a2bdba7)
- test case: modify test case test_tcp_new_max_num_remove_FIN_WAIT_1 (espressif/esp-lwip@6b090f7d)
Closes https://github.com/espressif/esp-idf/issues/8300
Closes https://github.com/espressif/esp-idf/issues/8451
