Block cert modification in callbacks based on new flag

[padelsbach]

Description

Prevent the user from modifying certificates when those buffers are aliased across WOLFSSL and WOLFSSL_CTX objects. Specifically, the wolfSSL_CTX_use_certificate* and wolfSSL_CTX_user_PrivateKey* API families (and a few other one-offs) are blocked.

This is yet another approach to solving zd 22107

Testing

Added unit tests.

Checklist

• added tests
• updated/added doxygen
• updated appropriate READMEs
• Updated manual and documentation

[github-actions]

retest this please

[github-actions]

MemBrowse Memory Report

gcc-arm-cortex-m3

• FLASH: .text +60 B (+0.0%, 123,919 B / 262,144 B, total: 47% used)
• RAM: .bss +4 B (+0.5%, 820 B / 65,536 B, total: 1% used)

gcc-arm-cortex-m4

• FLASH: .text +64 B (+0.0%, 202,415 B / 262,144 B, total: 77% used)
• RAM: .bss +4 B (+0.5%, 840 B / 65,536 B, total: 1% used)

gcc-arm-cortex-m4-dtls13

• FLASH: .text +64 B (+0.0%, 183,740 B / 1,048,576 B, total: 18% used)
• RAM: .bss +4 B (+0.5%, 856 B / 262,144 B, total: 0% used)

gcc-arm-cortex-m4-openssl-compat

• FLASH: .rodata +16 B, .text +128 B (+0.0%, 776,684 B / 1,048,576 B, total: 74% used)
• RAM: .bss +8 B (+0.0%, 136,952 B / 262,144 B, total: 52% used)

gcc-arm-cortex-m4-pq

• FLASH: .text +128 B (+0.0%, 298,076 B / 1,048,576 B, total: 28% used)

gcc-arm-cortex-m4-rsa-only

• FLASH: .text +64 B (+0.0%, 328,624 B / 1,048,576 B, total: 31% used)

gcc-arm-cortex-m4-tls12

• FLASH: .text +64 B (+0.1%, 124,723 B / 262,144 B, total: 48% used)
• RAM: .bss +4 B (+0.5%, 820 B / 65,536 B, total: 1% used)

gcc-arm-cortex-m4-tls13

• FLASH: .text +64 B (+0.0%, 238,817 B / 262,144 B, total: 91% used)

gcc-arm-cortex-m7

• FLASH: .text +64 B (+0.0%, 202,415 B / 262,144 B, total: 77% used)
• RAM: .bss +4 B (+0.5%, 840 B / 65,536 B, total: 1% used)

gcc-arm-cortex-m7-pq

• FLASH: .text +64 B (+0.0%, 298,972 B / 1,048,576 B, total: 29% used)

gcc-arm-cortex-m7-tls13

• FLASH: .text +64 B (+0.0%, 238,881 B / 262,144 B, total: 91% used)

linuxkm-standard

• Data: __patchable_function_entries +24 B (+0.0%, 49,480 B)
  No memory changes detected for:
• gcc-arm-cortex-m0plus
• gcc-arm-cortex-m4-baremetal
• gcc-arm-cortex-m4-crypto-only
• gcc-arm-cortex-m4-min-ecc
• gcc-arm-cortex-m4-pkcs7
• gcc-arm-cortex-m4-sp-math
• linuxkm-pie
• stm32-sim-stm32h753

[padelsbach]

jenkins retest this please