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| author | Sammy Kaye Powers <sammyk@php.net> | 2020-07-16 16:31:10 -0700 |
|---|---|---|
| committer | Sammy Kaye Powers <sammyk@php.net> | 2020-09-18 14:26:44 -0700 |
| commit | 12306728c5f37dc371bc39f5fe2bf8e928368235 (patch) | |
| tree | eed1bf4671bc1c46e6a8e7a30b07bd4e9a7bc1d2 /main/main.c | |
| parent | 30bb15b24a266eae1577b68cd980241b1a5adf40 (diff) | |
| download | php-git-12306728c5f37dc371bc39f5fe2bf8e928368235.tar.gz | |
Add system ID entropy API
The `zend_system_id` is a (true global) system ID that fingerprints a process state. When extensions add engine hooks during MINIT/startup, entropy is added the system ID for each hook. This allows extensions to identify that changes have been made to the engine since the last PHP process restart.
Closes GH-5871
Diffstat (limited to 'main/main.c')
| -rw-r--r-- | main/main.c | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/main/main.c b/main/main.c index 103c10a06b..3667432f94 100644 --- a/main/main.c +++ b/main/main.c @@ -72,6 +72,7 @@ #include "zend_ini.h" #include "zend_dtrace.h" #include "zend_observer.h" +#include "zend_system_id.h" #include "php_content_types.h" #include "php_ticks.h" @@ -2194,6 +2195,9 @@ int php_module_startup(sapi_module_struct *sf, zend_module_entry *additional_mod zend_set_utility_values(&zuv); php_startup_sapi_content_types(); + /* Begin to fingerprint the process state */ + zend_startup_system_id(); + /* startup extensions statically compiled in */ if (php_register_internal_extensions_func() == FAILURE) { php_printf("Unable to start builtin modules\n"); @@ -2237,6 +2241,9 @@ int php_module_startup(sapi_module_struct *sf, zend_module_entry *additional_mod module->info_func = PHP_MINFO(php_core); } + /* Extensions that add engine hooks after this point do so at their own peril */ + zend_finalize_system_id(); + module_initialized = 1; if (zend_post_startup() != SUCCESS) { |