Using both NET_SOCKETS_SOCKOPT_TLS and POSIX_API fails build

[marinbudimir]

Describe the bug
In my project I am using MQTT TLS so I have CONFIG_NET_SOCKETS_SOCKOPT_TLS=y. I am also using Zephyr ESP32 WiFi drivers which automatically select POSIX_API. Build fails when using both of this.

To Reproduce
Steps to reproduce the behavior:

1. make any zephyr project
2. put following config in prj.conf file

#NET_SOCKETS_SOCOPT_TLS dependecies
CONFIG_NET_SOCKETS=y
CONFIG_NETWORKING=y

CONFIG_NET_SOCKETS_SOCKOPT_TLS=y
CONFIG_POSIX_API=y

3. try to build zephyr project
4. see error

Expected behavior
Zephyr project builds successfully

Logs and console output

[237/293] Building C object modules/mbedtls/CMakeFiles/..__modules__crypto__mbedtls.dir/library/ssl_cli.c.obj
In file included from /home/users/mbudimir/zephyrproject/modules/crypto/mbedtls/include/mbedtls/platform.h:68,
                 from /home/users/mbudimir/zephyrproject/modules/crypto/mbedtls/library/ssl_cli.c:56:
/home/users/mbudimir/zephyrproject/modules/crypto/mbedtls/library/ssl_cli.c: In function 'ssl_generate_random':
/home/users/mbudimir/zephyrproject/modules/crypto/mbedtls/include/mbedtls/platform_time.h:99:24: warning: implicit declaration of function 'time'; did you mean 'gmtime'? [-Wimplicit-function-declaration]
 #define mbedtls_time   time
                        ^~~~
/home/users/mbudimir/zephyrproject/modules/crypto/mbedtls/library/ssl_cli.c:724:9: note: in expansion of macro 'mbedtls_time'
     t = mbedtls_time( NULL );
         ^~~~~~~~~~~~
[239/293] Building C object modules/mbedtls/CMakeFiles/..__modules__crypto__mbedtls.dir/library/ssl_srv.c.obj
In file included from /home/users/mbudimir/zephyrproject/modules/crypto/mbedtls/include/mbedtls/platform.h:68,
                 from /home/users/mbudimir/zephyrproject/modules/crypto/mbedtls/library/ssl_srv.c:56:
/home/users/mbudimir/zephyrproject/modules/crypto/mbedtls/library/ssl_srv.c: In function 'ssl_write_server_hello':
/home/users/mbudimir/zephyrproject/modules/crypto/mbedtls/include/mbedtls/platform_time.h:99:24: warning: implicit declaration of function 'time'; did you mean 'gmtime'? [-Wimplicit-function-declaration]
 #define mbedtls_time   time
                        ^~~~
/home/users/mbudimir/zephyrproject/modules/crypto/mbedtls/library/ssl_srv.c:2479:9: note: in expansion of macro 'mbedtls_time'
     t = mbedtls_time( NULL );
         ^~~~~~~~~~~~
[247/293] Building C object modules/mbedtls/CMakeFiles/..__modules__crypto__mbedtls.dir/library/x509.c.obj
In file included from /home/users/mbudimir/zephyrproject/modules/crypto/mbedtls/include/mbedtls/platform_util.h:61,
                 from /home/users/mbudimir/zephyrproject/modules/crypto/mbedtls/include/mbedtls/cipher.h:64,
                 from /home/users/mbudimir/zephyrproject/modules/crypto/mbedtls/include/mbedtls/oid.h:64,
                 from /home/users/mbudimir/zephyrproject/modules/crypto/mbedtls/library/x509.c:67:
/home/users/mbudimir/zephyrproject/modules/crypto/mbedtls/library/x509.c: In function 'x509_get_current_time':
/home/users/mbudimir/zephyrproject/modules/crypto/mbedtls/include/mbedtls/platform_time.h:99:24: warning: implicit declaration of function 'time'; did you mean 'gmtime'? [-Wimplicit-function-declaration]
 #define mbedtls_time   time
                        ^~~~
/home/users/mbudimir/zephyrproject/modules/crypto/mbedtls/library/x509.c:935:10: note: in expansion of macro 'mbedtls_time'
     tt = mbedtls_time( NULL );

/home/users/mbudimir/.espressif/tools/xtensa-esp32-elf/esp-2020r3-8.4.0/xtensa-esp32-elf/bin/../lib/gcc/xtensa-esp32-elf/8.4.0/../../../../xtensa-esp32-elf/bin/ld: modules/mbedtls/lib..__modules__crypto__mbedtls.a(ssl_cli.c.obj):(.literal.mbedtls_ssl_handshake_client_step+0x38): undefined reference to `time'
/home/users/mbudimir/.espressif/tools/xtensa-esp32-elf/esp-2020r3-8.4.0/xtensa-esp32-elf/bin/../lib/gcc/xtensa-esp32-elf/8.4.0/../../../../xtensa-esp32-elf/bin/ld: modules/mbedtls/lib..__modules__crypto__mbedtls.a(ssl_cli.c.obj): in function `ssl_generate_random':
/home/users/mbudimir/zephyrproject/modules/crypto/mbedtls/library/ssl_cli.c:707: undefined reference to `time'
/home/users/mbudimir/.espressif/tools/xtensa-esp32-elf/esp-2020r3-8.4.0/xtensa-esp32-elf/bin/../lib/gcc/xtensa-esp32-elf/8.4.0/../../../../xtensa-esp32-elf/bin/ld: modules/mbedtls/lib..__modules__crypto__mbedtls.a(ssl_cli.c.obj): in function `ssl_parse_server_hello':
/home/users/mbudimir/zephyrproject/modules/crypto/mbedtls/library/ssl_cli.c:1894: undefined reference to `time'
/home/users/mbudimir/.espressif/tools/xtensa-esp32-elf/esp-2020r3-8.4.0/xtensa-esp32-elf/bin/../lib/gcc/xtensa-esp32-elf/8.4.0/../../../../xtensa-esp32-elf/bin/ld: modules/mbedtls/lib..__modules__crypto__mbedtls.a(ssl_srv.c.obj): in function `ssl_parse_client_hello':
/home/users/mbudimir/zephyrproject/modules/crypto/mbedtls/library/ssl_srv.c:2011: undefined reference to `time'
/home/users/mbudimir/.espressif/tools/xtensa-esp32-elf/esp-2020r3-8.4.0/xtensa-esp32-elf/bin/../lib/gcc/xtensa-esp32-elf/8.4.0/../../../../xtensa-esp32-elf/bin/ld: modules/mbedtls/lib..__modules__crypto__mbedtls.a(ssl_srv.c.obj): in function `ssl_write_server_hello':
/home/users/mbudimir/zephyrproject/modules/crypto/mbedtls/library/ssl_srv.c:2483: undefined reference to `time'
/home/users/mbudimir/.espressif/tools/xtensa-esp32-elf/esp-2020r3-8.4.0/xtensa-esp32-elf/bin/../lib/gcc/xtensa-esp32-elf/8.4.0/../../../../xtensa-esp32-elf/bin/ld: modules/mbedtls/lib..__modules__crypto__mbedtls.a(x509.c.obj):/home/users/mbudimir/zephyrproject/modules/crypto/mbedtls/library/x509.c:935: more undefined references to `time' follow

[jukkar]

There are conflicts if one selects CONFIG_POSIX_API and mbedtls. You can also try to unset CONFIG_NET_TCP_ISN_RFC6528=n if it helps (see commits 51beb28 and 6526b5b for details).

[mniestroj]

undefined reference to time could be solved by #33397.

[marinbudimir]

undefined reference to time could be solved by #33397.

This solves the problem.