From 0f63670409661f068ac597ccaa66490ac0f7ddd8 Mon Sep 17 00:00:00 2001 From: "Joe Richey joerichey@google.com" Date: Mon, 17 Jul 2017 17:19:37 -0700 Subject: pam: C implementation for conversation and cleanup This commit adds in a C implementation for the pam_conv we will use in login.go as well as adding three CleanupFuncs that will be used with pam_set_data(). It also adds copyInfoSecret() which should be paired with freeSecret(). --- pam/pam.h | 23 ++++++++++++++++++----- 1 file changed, 18 insertions(+), 5 deletions(-) (limited to 'pam/pam.h') diff --git a/pam/pam.h b/pam/pam.h index 83ef2a9..9f3cdb2 100644 --- a/pam/pam.h +++ b/pam/pam.h @@ -22,10 +22,23 @@ #include -// fscrypt_service is the display name of the service requesting the passphrase. -const char* fscrypt_service; +// Conversation that will call back into Go code when appropriate. +const struct pam_conv conv; -// pam_init initializes the pam_conv structure for use with our Go callbacks. -void pam_init(struct pam_conv* conv); +// CleaupFuncs are used to cleanup specific PAM data. +typedef void (*CleanupFunc)(pam_handle_t *pamh, void *data, int error_status); -#endif +// CleaupFunc that calls free() on data. +void freeData(pam_handle_t *pamh, void *data, int error_status); + +// CleaupFunc that frees each item in a null terminated array of pointers and +// then frees the array itself. +void freeArray(pam_handle_t *pamh, void **array, int error_status); + +// Creates a copy of a C string, which resides in an locked buffer. +void *copyIntoSecret(void *data); + +// CleaupFunc that Zeros wipes a C string and unlocks and frees its memory. +void freeSecret(pam_handle_t *pamh, char *data, int error_status); + +#endif // FSCRYPT_PAM_H -- cgit v1.2.3