CertManager API

Functions
WOLFSSL_CERT_MANAGER *	wolfSSL_CertManagerNew_ex (void *heap)
	Allocates and initializes a new Certificate Manager context. This context may be used independent of SSL needs. It may be used to load certificates, verify certificates, and check the revocation status. More...
WOLFSSL_CERT_MANAGER *	wolfSSL_CertManagerNew (void)
	Allocates and initializes a new Certificate Manager context. This context may be used independent of SSL needs. It may be used to load certificates, verify certificates, and check the revocation status. More...
void	wolfSSL_CertManagerFree (WOLFSSL_CERT_MANAGER *)
	Frees all resources associated with the Certificate Manager context. Call this when you no longer need to use the Certificate Manager. More...
int	wolfSSL_CertManagerLoadCA (WOLFSSL_CERT_MANAGER *cm, const char *f, const char *d)
	Specifies the locations for CA certificate loading into the manager context. The PEM certificate CAfile may contain several trusted CA certificates. If CApath is not NULL it specifies a directory containing CA certificates in PEM format. More...
int	wolfSSL_CertManagerLoadCABuffer (WOLFSSL_CERT_MANAGER *cm, const unsigned char *in, long sz, int format)
	Loads the CA Buffer by calling wolfSSL_CTX_load_verify_buffer and returning that result using a temporary cm so as not to lose the information in the cm passed into the function. More...
int	wolfSSL_CertManagerUnloadCAs (WOLFSSL_CERT_MANAGER *cm)
	This function unloads the CA signer list. More...
int	wolfSSL_CertManagerUnload_trust_peers (WOLFSSL_CERT_MANAGER *cm)
	The function will free the Trusted Peer linked list and unlocks the trusted peer list. More...
int	wolfSSL_CertManagerVerify (WOLFSSL_CERT_MANAGER *cm, const char *f, int format)
	Specifies the certificate to verify with the Certificate Manager context. The format can be SSL_FILETYPE_PEM or SSL_FILETYPE_ASN1. More...
int	wolfSSL_CertManagerVerifyBuffer (WOLFSSL_CERT_MANAGER *cm, const unsigned char *buff, long sz, int format)
	Specifies the certificate buffer to verify with the Certificate Manager context. The format can be SSL_FILETYPE_PEM or SSL_FILETYPE_ASN1. More...
void	wolfSSL_CertManagerSetVerify (WOLFSSL_CERT_MANAGER *cm, VerifyCallback vc)
	The function sets the verifyCallback function in the Certificate Manager. If present, it will be called for each cert loaded. If there is a verification error, the verify callback can be used to over-ride the error. More...
int	wolfSSL_CertManagerEnableCRL (WOLFSSL_CERT_MANAGER *cm, int options)
	Turns on Certificate Revocation List checking when verifying certificates with the Certificate Manager. By default, CRL checking is off. options include WOLFSSL_CRL_CHECKALL which performs CRL checking on each certificate in the chain versus the Leaf certificate only which is the default. More...
int	wolfSSL_CertManagerDisableCRL (WOLFSSL_CERT_MANAGER *)
	Turns off Certificate Revocation List checking when verifying certificates with the Certificate Manager. By default, CRL checking is off. You can use this function to temporarily or permanently disable CRL checking with this Certificate Manager context that previously had CRL checking enabled. More...
int	wolfSSL_CertManagerLoadCRL (WOLFSSL_CERT_MANAGER *cm, const char *path, int type, int monitor)
	Error checks and passes through to LoadCRL() in order to load the cert into the CRL for revocation checking. An updated CRL can be loaded by first calling wolfSSL_CertManagerFreeCRL, then loading the new CRL. More...
int	wolfSSL_CertManagerLoadCRLBuffer (WOLFSSL_CERT_MANAGER *cm, const unsigned char *buff, long sz, int type)
	The function loads the CRL file by calling BufferLoadCRL. More...
int	wolfSSL_CertManagerSetCRL_Cb (WOLFSSL_CERT_MANAGER *cm, CbMissingCRL cb)
	This function sets the CRL Certificate Manager callback. If HAVE_CRL is defined and a matching CRL record is not found then the cbMissingCRL is called (set via wolfSSL_CertManagerSetCRL_Cb). This allows you to externally retrieve the CRL and load it. More...
int	wolfSSL_CertManagerFreeCRL (WOLFSSL_CERT_MANAGER *cm)
	This function frees the CRL stored in the Cert Manager. An application can update the CRL by calling wolfSSL_CertManagerFreeCRL and then loading the new CRL. More...
int	wolfSSL_CertManagerCheckOCSP (WOLFSSL_CERT_MANAGER *cm, unsigned char *der, int sz)
	The function enables the WOLFSSL_CERT_MANAGER’s member, ocspEnabled to signify that the OCSP check option is enabled. More...
int	wolfSSL_CertManagerEnableOCSP (WOLFSSL_CERT_MANAGER *cm, int options)
	Turns on OCSP if it’s turned off and if compiled with the set option available. More...
int	wolfSSL_CertManagerDisableOCSP (WOLFSSL_CERT_MANAGER *)
	Disables OCSP certificate revocation. More...
int	wolfSSL_CertManagerSetOCSPOverrideURL (WOLFSSL_CERT_MANAGER *cm, const char *url)
	The function copies the url to the ocspOverrideURL member of the WOLFSSL_CERT_MANAGER structure. More...
int	wolfSSL_CertManagerSetOCSP_Cb (WOLFSSL_CERT_MANAGER *cm, CbOCSPIO ioCb, CbOCSPRespFree respFreeCb, void *ioCbCtx)
	The function sets the OCSP callback in the WOLFSSL_CERT_MANAGER. More...
int	wolfSSL_CertManagerEnableOCSPStapling (WOLFSSL_CERT_MANAGER *cm)
	This function turns on OCSP stapling if it is not turned on as well as set the options. More...

Detailed Description

Function Documentation

wolfSSL_CertManagerCheckOCSP()

int wolfSSL_CertManagerCheckOCSP	(	WOLFSSL_CERT_MANAGER *	cm,
		unsigned char *	der,
		int	sz
	)

The function enables the WOLFSSL_CERT_MANAGER’s member, ocspEnabled to signify that the OCSP check option is enabled.

Returns

SSL_SUCCESS returned on successful execution of the function. The ocspEnabled member of the WOLFSSL_CERT_MANAGER is enabled.

BAD_FUNC_ARG returned if the WOLFSSL_CERT_MANAGER structure is NULL or if an argument value that is not allowed is passed to a subroutine.

MEMORY_E returned if there is an error allocating memory within this function or a subroutine.

Parameters

cm	a pointer to a WOLFSSL_CERT_MANAGER structure, created using wolfSSL_CertManagerNew().
der	a byte pointer to the certificate.
sz	an int type representing the size of the DER cert.

Example

#import <wolfssl/ssl.h>
 
WOLFSSL* ssl = wolfSSL_new(ctx);
byte* der;
int sz; size of der
...
if(wolfSSL_CertManagerCheckOCSP(cm, der, sz) != SSL_SUCCESS){
 Failure case.
}

See also

ParseCertRelative

CheckCertOCSP

wolfSSL_CertManagerDisableCRL()

int wolfSSL_CertManagerDisableCRL

(

WOLFSSL_CERT_MANAGER *

)

Turns off Certificate Revocation List checking when verifying certificates with the Certificate Manager. By default, CRL checking is off. You can use this function to temporarily or permanently disable CRL checking with this Certificate Manager context that previously had CRL checking enabled.

Returns

SSL_SUCCESS If successful the call will return.

BAD_FUNC_ARG is the error that will be returned if a function pointer is not provided.

Parameters

cm	a pointer to a WOLFSSL_CERT_MANAGER structure, created using wolfSSL_CertManagerNew().

Example

#include <wolfssl/ssl.h>
 
int ret = 0;
WOLFSSL_CERT_MANAGER* cm;
...
ret = wolfSSL_CertManagerDisableCRL(cm);
if (ret != SSL_SUCCESS) {
    error disabling cert manager
}
...

See also

wolfSSL_CertManagerEnableCRL

wolfSSL_CertManagerDisableOCSP()

int wolfSSL_CertManagerDisableOCSP

(

WOLFSSL_CERT_MANAGER *

)

Disables OCSP certificate revocation.

Returns

SSL_SUCCESS wolfSSL_CertMangerDisableCRL successfully disabled the crlEnabled member of the WOLFSSL_CERT_MANAGER structure.

BAD_FUNC_ARG the WOLFSSL structure was NULL.

Parameters

ssl	- a pointer to a WOLFSSL structure, created using wolfSSL_new().

Example

#include <wolfssl/ssl.h>
 
WOLFSSL_CTX* ctx = wolfSSL_CTX_new(method);
WOLFSSL* ssl = wolfSSL_new(ctx);
...
if(wolfSSL_CertManagerDisableOCSP(ssl) != SSL_SUCCESS){
    Fail case.
}

See also

wolfSSL_DisableCRL

wolfSSL_CertManagerEnableCRL()

int wolfSSL_CertManagerEnableCRL	(	WOLFSSL_CERT_MANAGER *	cm,
		int	options
	)

Turns on Certificate Revocation List checking when verifying certificates with the Certificate Manager. By default, CRL checking is off. options include WOLFSSL_CRL_CHECKALL which performs CRL checking on each certificate in the chain versus the Leaf certificate only which is the default.

Returns

SSL_SUCCESS If successful the call will return.

NOT_COMPILED_IN will be returned if wolfSSL was not built with CRL enabled.

MEMORY_E will be returned if an out of memory condition occurs.

BAD_FUNC_ARG is the error that will be returned if a pointer is not provided.

SSL_FAILURE will be returned if the CRL context cannot be initialized properly.

Parameters

cm	a pointer to a WOLFSSL_CERT_MANAGER structure, created using wolfSSL_CertManagerNew().
options	options to use when enabling the Certification Manager, cm.

Example

#include <wolfssl/ssl.h>
 
int ret = 0;
WOLFSSL_CERT_MANAGER* cm;
...
 
ret = wolfSSL_CertManagerEnableCRL(cm, 0);
if (ret != SSL_SUCCESS) {
    error enabling cert manager
}
 
...

See also

wolfSSL_CertManagerDisableCRL

wolfSSL_CertManagerEnableOCSP()

int wolfSSL_CertManagerEnableOCSP	(	WOLFSSL_CERT_MANAGER *	cm,
		int	options
	)

Turns on OCSP if it’s turned off and if compiled with the set option available.

Returns

SSL_SUCCESS returned if the function call is successful.

BAD_FUNC_ARG if cm struct is NULL.

MEMORY_E if WOLFSSL_OCSP struct value is NULL.

SSL_FAILURE initialization of WOLFSSL_OCSP struct fails to initialize.

NOT_COMPILED_IN build not compiled with correct feature enabled.

Parameters

cm	a pointer to a WOLFSSL_CERT_MANAGER structure, created using wolfSSL_CertManagerNew().
options	used to set values in WOLFSSL_CERT_MANAGER struct.

Example

#include <wolfssl/ssl.h>
 
WOLFSSL_CTX* ctx = wolfSSL_CTX_new(protocol method);
WOLFSSL* ssl = wolfSSL_new(ctx);
WOLFSSL_CERT_MANAGER* cm = wolfSSL_CertManagerNew();
int options;
…
if(wolfSSL_CertManagerEnableOCSP(SSL_CM(ssl), options) != SSL_SUCCESS){
    Failure case.
}

See also

wolfSSL_CertManagerNew

wolfSSL_CertManagerEnableOCSPStapling()

int wolfSSL_CertManagerEnableOCSPStapling

(

WOLFSSL_CERT_MANAGER *

cm

)

This function turns on OCSP stapling if it is not turned on as well as set the options.

Returns

SSL_SUCCESS returned if there were no errors and the function executed successfully.

BAD_FUNC_ARG returned if the WOLFSSL_CERT_MANAGER structure is NULL or otherwise if there was a unpermitted argument value passed to a subroutine.

MEMORY_E returned if there was an issue allocating memory.

SSL_FAILURE returned if the initialization of the OCSP structure failed.

NOT_COMPILED_IN returned if wolfSSL was not compiled with HAVE_CERTIFICATE_STATUS_REQUEST option.

Parameters

cm	a pointer to a WOLFSSL_CERT_MANAGER structure, a member of the WOLFSSL_CTX structure.

Example

int wolfSSL_CTX_EnableOCSPStapling(WOLFSSL_CTX* ctx){
…
return wolfSSL_CertManagerEnableOCSPStapling(ctx->cm);

See also

wolfSSL_CTX_EnableOCSPStapling

wolfSSL_CertManagerFree()

void wolfSSL_CertManagerFree

(

WOLFSSL_CERT_MANAGER *

)

Frees all resources associated with the Certificate Manager context. Call this when you no longer need to use the Certificate Manager.

Returns

none

Parameters

cm	a pointer to a WOLFSSL_CERT_MANAGER structure, created using wolfSSL_CertManagerNew().

Example

#include <wolfssl/ssl.h>
 
WOLFSSL_CERT_MANAGER* cm;
...
wolfSSL_CertManagerFree(cm);

See also

wolfSSL_CertManagerNew

wolfSSL_CertManagerFreeCRL()

int wolfSSL_CertManagerFreeCRL

(

WOLFSSL_CERT_MANAGER *

cm

)

This function frees the CRL stored in the Cert Manager. An application can update the CRL by calling wolfSSL_CertManagerFreeCRL and then loading the new CRL.

Returns

SSL_SUCCESS returned upon successful execution of the function and subroutines.

BAD_FUNC_ARG returned if the WOLFSSL_CERT_MANAGER structure is NULL.

Parameters

cm	a pointer to a WOLFSSL_CERT_MANAGER structure, created using wolfSSL_CertManagerNew().

Example

#include <wolfssl/ssl.h>
 
const char* crl1     = "./certs/crl/crl.pem";
WOLFSSL_CERT_MANAGER* cm = NULL;
 
cm = wolfSSL_CertManagerNew();
wolfSSL_CertManagerLoadCRL(cm, crl1, WOLFSSL_FILETYPE_PEM, 0);
…
wolfSSL_CertManagerFreeCRL(cm);

See also

wolfSSL_CertManagerLoadCRL

wolfSSL_CertManagerLoadCA()

int wolfSSL_CertManagerLoadCA	(	WOLFSSL_CERT_MANAGER *	cm,
		const char *	f,
		const char *	d
	)

Specifies the locations for CA certificate loading into the manager context. The PEM certificate CAfile may contain several trusted CA certificates. If CApath is not NULL it specifies a directory containing CA certificates in PEM format.

Returns

SSL_SUCCESS If successful the call will return.

SSL_BAD_FILETYPE will be returned if the file is the wrong format.

SSL_BAD_FILE will be returned if the file doesn’t exist, can’t be read, or is corrupted.

MEMORY_E will be returned if an out of memory condition occurs.

ASN_INPUT_E will be returned if Base16 decoding fails on the file.

BAD_FUNC_ARG is the error that will be returned if a pointer is not provided.

SSL_FATAL_ERROR - will be returned upon failure.

Parameters

cm	a pointer to a WOLFSSL_CERT_MANAGER structure, created using wolfSSL_CertManagerNew().
file	pointer to the name of the file containing CA certificates to load.
path	pointer to the name of a directory path containing CA c ertificates to load. The NULL pointer may be used if no certificate directory is desired.

Example

#include <wolfssl/ssl.h>
 
int ret = 0;
WOLFSSL_CERT_MANAGER* cm;
...
ret = wolfSSL_CertManagerLoadCA(cm, “path/to/cert-file.pem”, 0);
if (ret != SSL_SUCCESS) {
// error loading CA certs into cert manager
}

See also

wolfSSL_CertManagerVerify

wolfSSL_CertManagerLoadCABuffer()

int wolfSSL_CertManagerLoadCABuffer	(	WOLFSSL_CERT_MANAGER *	cm,
		const unsigned char *	in,
		long	sz,
		int	format
	)

Loads the CA Buffer by calling wolfSSL_CTX_load_verify_buffer and returning that result using a temporary cm so as not to lose the information in the cm passed into the function.

Returns

SSL_FATAL_ERROR is returned if the WOLFSSL_CERT_MANAGER struct is NULL or if wolfSSL_CTX_new() returns NULL.

SSL_SUCCESS is returned for a successful execution.

Parameters

cm	a pointer to a WOLFSSL_CERT_MANAGER structure, created using wolfSSL_CertManagerNew().
in	buffer for cert information.
sz	length of the buffer.
format	certificate format, either PEM or DER.

Example

WOLFSSL_CERT_MANAGER* cm = (WOLFSSL_CERT_MANAGER*)vp;
…
const unsigned char* in;
long sz;
int format;
…
if(wolfSSL_CertManagerLoadCABuffer(vp, sz, format) != SSL_SUCCESS){
    Error returned. Failure case code block.
}

See also

wolfSSL_CTX_load_verify_buffer

ProcessChainBuffer

ProcessBuffer

cm_pick_method

wolfSSL_CertManagerLoadCRL()

int wolfSSL_CertManagerLoadCRL	(	WOLFSSL_CERT_MANAGER *	cm,
		const char *	path,
		int	type,
		int	monitor
	)

Error checks and passes through to LoadCRL() in order to load the cert into the CRL for revocation checking. An updated CRL can be loaded by first calling wolfSSL_CertManagerFreeCRL, then loading the new CRL.

Returns

SSL_SUCCESS if there is no error in wolfSSL_CertManagerLoadCRL and if LoadCRL returns successfully.

BAD_FUNC_ARG if the WOLFSSL_CERT_MANAGER struct is NULL.

SSL_FATAL_ERROR if wolfSSL_CertManagerEnableCRL returns anything other than SSL_SUCCESS.

BAD_PATH_ERROR if the path is NULL.

MEMORY_E if LoadCRL fails to allocate heap memory.

Parameters

cm	a pointer to a WOLFSSL_CERT_MANAGER structure, created using wolfSSL_CertManagerNew().
path	a constant char pointer holding the CRL path.
type	type of certificate to be loaded.
monitor	requests monitoring in LoadCRL().

Example

#include <wolfssl/ssl.h>
 
int wolfSSL_LoadCRL(WOLFSSL* ssl, const char* path, int type,
int monitor);
…
wolfSSL_CertManagerLoadCRL(SSL_CM(ssl), path, type, monitor);

See also

wolfSSL_CertManagerEnableCRL

wolfSSL_LoadCRL

wolfSSL_CertManagerFreeCRL

wolfSSL_CertManagerLoadCRLBuffer()

int wolfSSL_CertManagerLoadCRLBuffer	(	WOLFSSL_CERT_MANAGER *	cm,
		const unsigned char *	buff,
		long	sz,
		int	type
	)

The function loads the CRL file by calling BufferLoadCRL.

Returns

SSL_SUCCESS returned if the function completed without errors.

BAD_FUNC_ARG returned if the WOLFSSL_CERT_MANAGER is NULL.

SSL_FATAL_ERROR returned if there is an error associated with the WOLFSSL_CERT_MANAGER.

Parameters

cm	a pointer to a WOLFSSL_CERT_MANAGER structure.
buff	a constant byte type and is the buffer.
sz	a long int representing the size of the buffer.
type	a long integer that holds the certificate type.

Example

#include <wolfssl/ssl.h>
 
WOLFSSL_CERT_MANAGER* cm;
const unsigned char* buff;
long sz; size of buffer
int type;  cert type
...
int ret = wolfSSL_CertManagerLoadCRLBuffer(cm, buff, sz, type);
if(ret == SSL_SUCCESS){
return ret;
} else {
    Failure case.
}

See also

BufferLoadCRL

wolfSSL_CertManagerEnableCRL

wolfSSL_CertManagerNew()

WOLFSSL_CERT_MANAGER* wolfSSL_CertManagerNew

(

void

)

Allocates and initializes a new Certificate Manager context. This context may be used independent of SSL needs. It may be used to load certificates, verify certificates, and check the revocation status.

Returns

WOLFSSL_CERT_MANAGER If successful the call will return a valid WOLFSSL_CERT_MANAGER pointer.

NULL will be returned for an error state.

Parameters

none	No parameters.

Example

#import <wolfssl/ssl.h>
 
WOLFSSL_CERT_MANAGER* cm;
cm = wolfSSL_CertManagerNew();
if (cm == NULL) {
// error creating new cert manager
}

See also

wolfSSL_CertManagerFree

wolfSSL_CertManagerNew_ex()

WOLFSSL_CERT_MANAGER* wolfSSL_CertManagerNew_ex

(

void *

heap

)

Allocates and initializes a new Certificate Manager context. This context may be used independent of SSL needs. It may be used to load certificates, verify certificates, and check the revocation status.

Returns

WOLFSSL_CERT_MANAGER If successful the call will return a valid WOLFSSL_CERT_MANAGER pointer.

NULL will be returned for an error state.

Parameters

none	No parameters.

See also

wolfSSL_CertManagerFree

wolfSSL_CertManagerSetCRL_Cb()

int wolfSSL_CertManagerSetCRL_Cb	(	WOLFSSL_CERT_MANAGER *	cm,
		CbMissingCRL	cb
	)

This function sets the CRL Certificate Manager callback. If HAVE_CRL is defined and a matching CRL record is not found then the cbMissingCRL is called (set via wolfSSL_CertManagerSetCRL_Cb). This allows you to externally retrieve the CRL and load it.

Returns

SSL_SUCCESS returned upon successful execution of the function and subroutines.

BAD_FUNC_ARG returned if the WOLFSSL_CERT_MANAGER structure is NULL.

Parameters

cm	the WOLFSSL_CERT_MANAGER structure holding the information for the certificate.
cb	a function pointer to (*CbMissingCRL) that is set to the cbMissingCRL member of the WOLFSSL_CERT_MANAGER.

Example

#include <wolfssl/ssl.h>
 
WOLFSSL_CTX* ctx = wolfSSL_CTX_new(protocol method);
WOLFSSL* ssl = wolfSSL_new(ctx);
…
void cb(const char* url){
    Function body.
}
…
CbMissingCRL cb = CbMissingCRL;
…
if(ctx){
    return wolfSSL_CertManagerSetCRL_Cb(SSL_CM(ssl), cb);
}

See also

CbMissingCRL

wolfSSL_SetCRL_Cb

wolfSSL_CertManagerSetOCSP_Cb()

int wolfSSL_CertManagerSetOCSP_Cb	(	WOLFSSL_CERT_MANAGER *	cm,
		CbOCSPIO	ioCb,
		CbOCSPRespFree	respFreeCb,
		void *	ioCbCtx
	)

The function sets the OCSP callback in the WOLFSSL_CERT_MANAGER.

Returns

SSL_SUCCESS returned on successful execution. The arguments are saved in the WOLFSSL_CERT_MANAGER structure.

BAD_FUNC_ARG returned if the WOLFSSL_CERT_MANAGER is NULL.

Parameters

cm	a pointer to a WOLFSSL_CERT_MANAGER structure.
ioCb	a function pointer of type CbOCSPIO.
respFreeCb	- a function pointer of type CbOCSPRespFree.
ioCbCtx	- a void pointer variable to the I/O callback user registered context.

Example

#include <wolfssl/ssl.h>
 
wolfSSL_SetOCSP_Cb(WOLFSSL* ssl, CbOCSPIO ioCb,
CbOCSPRespFree respFreeCb, void* ioCbCtx){
…
return wolfSSL_CertManagerSetOCSP_Cb(SSL_CM(ssl), ioCb, respFreeCb, ioCbCtx);

See also

wolfSSL_CertManagerSetOCSPOverrideURL

wolfSSL_CertManagerCheckOCSP

wolfSSL_CertManagerEnableOCSPStapling

wolfSSL_ENableOCSP

wolfSSL_DisableOCSP

wolfSSL_SetOCSP_Cb

wolfSSL_CertManagerSetOCSPOverrideURL()

int wolfSSL_CertManagerSetOCSPOverrideURL	(	WOLFSSL_CERT_MANAGER *	cm,
		const char *	url
	)

The function copies the url to the ocspOverrideURL member of the WOLFSSL_CERT_MANAGER structure.

Returns

SSL_SUCCESS the function was able to execute as expected.

BAD_FUNC_ARG the WOLFSSL_CERT_MANAGER struct is NULL.

MEMEORY_E Memory was not able to be allocated for the ocspOverrideURL member of the certificate manager.

Parameters

ssl	a pointer to a WOLFSSL structure, created using wolfSSL_new().

Example

#include <wolfssl/ssl.h>
WOLFSSL_CERT_MANAGER* cm = wolfSSL_CertManagerNew();
const char* url;
…
int wolfSSL_SetOCSP_OverrideURL(WOLFSSL* ssl, const char* url)
…
if(wolfSSL_CertManagerSetOCSPOverrideURL(SSL_CM(ssl), url) != SSL_SUCCESS){
    Failure case.
}

See also

ocspOverrideURL

wolfSSL_SetOCSP_OverrideURL

wolfSSL_CertManagerSetVerify()

void wolfSSL_CertManagerSetVerify	(	WOLFSSL_CERT_MANAGER *	cm,
		VerifyCallback	vc
	)

The function sets the verifyCallback function in the Certificate Manager. If present, it will be called for each cert loaded. If there is a verification error, the verify callback can be used to over-ride the error.

Returns

none No return.

Parameters

cm	a pointer to a WOLFSSL_CERT_MANAGER structure, created using wolfSSL_CertManagerNew().
vc	a VerifyCallback function pointer to the callback routine

Example

#include <wolfssl/ssl.h>
 
int myVerify(int preverify, WOLFSSL_X509_STORE_CTX* store)
{ // do custom verification of certificate }
 
WOLFSSL_CTX* ctx = WOLFSSL_CTX_new(Protocol define);
WOLFSSL_CERT_MANAGER* cm = wolfSSL_CertManagerNew();
...
wolfSSL_CertManagerSetVerify(cm, myVerify);

See also

wolfSSL_CertManagerVerify

wolfSSL_CertManagerUnload_trust_peers()

int wolfSSL_CertManagerUnload_trust_peers

(

WOLFSSL_CERT_MANAGER *

cm

)

The function will free the Trusted Peer linked list and unlocks the trusted peer list.

Returns

SSL_SUCCESS if the function completed normally.

BAD_FUNC_ARG if the WOLFSSL_CERT_MANAGER is NULL.

BAD_MUTEX_E mutex error if tpLock, a member of the WOLFSSL_CERT_MANAGER struct, is 0 (nill).

Parameters

cm	a pointer to a WOLFSSL_CERT_MANAGER structure, created using wolfSSL_CertManagerNew().

Example

#include <wolfssl/ssl.h>
 
WOLFSSL_CTX* ctx = WOLFSSL_CTX_new(Protocol define);
WOLFSSL_CERT_MANAGER* cm = wolfSSL_CertManagerNew();
...
if(wolfSSL_CertManagerUnload_trust_peers(cm) != SSL_SUCCESS){
    The function did not execute successfully.
}

See also

UnLockMutex

wolfSSL_CertManagerUnloadCAs()

int wolfSSL_CertManagerUnloadCAs

(

WOLFSSL_CERT_MANAGER *

cm

)

This function unloads the CA signer list.

Returns

SSL_SUCCESS returned on successful execution of the function.

BAD_FUNC_ARG returned if the WOLFSSL_CERT_MANAGER is NULL.

BAD_MUTEX_E returned if there was a mutex error.

Parameters

cm	a pointer to a WOLFSSL_CERT_MANAGER structure, created using wolfSSL_CertManagerNew().

Example

#include <wolfssl/ssl.h>
 
WOLFSSL_CTX* ctx = wolfSSL_CTX_new(protocol method);
WOLFSSL_CERT_MANAGER* cm = wolfSSL_CertManagerNew();
...
if(wolfSSL_CertManagerUnloadCAs(ctx->cm) != SSL_SUCCESS){
    Failure case.
}

See also

FreeSignerTable

UnlockMutex

wolfSSL_CertManagerVerify()

int wolfSSL_CertManagerVerify	(	WOLFSSL_CERT_MANAGER *	cm,
		const char *	f,
		int	format
	)

Specifies the certificate to verify with the Certificate Manager context. The format can be SSL_FILETYPE_PEM or SSL_FILETYPE_ASN1.

Returns

SSL_SUCCESS If successful.

ASN_SIG_CONFIRM_E will be returned if the signature could not be verified.

ASN_SIG_OID_E will be returned if the signature type is not supported.

CRL_CERT_REVOKED is an error that is returned if this certificate has been revoked.

CRL_MISSING is an error that is returned if a current issuer CRL is not available.

ASN_BEFORE_DATE_E will be returned if the current date is before the before date.

ASN_AFTER_DATE_E will be returned if the current date is after the after date.

SSL_BAD_FILETYPE will be returned if the file is the wrong format.

SSL_BAD_FILE will be returned if the file doesn’t exist, can’t be read, or is corrupted.

MEMORY_E will be returned if an out of memory condition occurs.

ASN_INPUT_E will be returned if Base16 decoding fails on the file.

BAD_FUNC_ARG is the error that will be returned if a pointer is not provided.

Parameters

cm	a pointer to a WOLFSSL_CERT_MANAGER structure, created using wolfSSL_CertManagerNew().
fname	pointer to the name of the file containing the certificates to verify.
format	format of the certificate to verify - either SSL_FILETYPE_ASN1 or SSL_FILETYPE_PEM.

Example

int ret = 0;
WOLFSSL_CERT_MANAGER* cm;
...
 
ret = wolfSSL_CertManagerVerify(cm, “path/to/cert-file.pem”,
SSL_FILETYPE_PEM);
if (ret != SSL_SUCCESS) {
    error verifying certificate
}

See also

wolfSSL_CertManagerLoadCA

wolfSSL_CertManagerVerifyBuffer

wolfSSL_CertManagerVerifyBuffer()

int wolfSSL_CertManagerVerifyBuffer	(	WOLFSSL_CERT_MANAGER *	cm,
		const unsigned char *	buff,
		long	sz,
		int	format
	)

Specifies the certificate buffer to verify with the Certificate Manager context. The format can be SSL_FILETYPE_PEM or SSL_FILETYPE_ASN1.

Returns

SSL_SUCCESS If successful.

ASN_SIG_CONFIRM_E will be returned if the signature could not be verified.

ASN_SIG_OID_E will be returned if the signature type is not supported.

CRL_CERT_REVOKED is an error that is returned if this certificate has been revoked.

CRL_MISSING is an error that is returned if a current issuer CRL is not available.

ASN_BEFORE_DATE_E will be returned if the current date is before the before date.

ASN_AFTER_DATE_E will be returned if the current date is after the after date.

SSL_BAD_FILETYPE will be returned if the file is the wrong format.

SSL_BAD_FILE will be returned if the file doesn’t exist, can’t be read, or is corrupted.

MEMORY_E will be returned if an out of memory condition occurs.

ASN_INPUT_E will be returned if Base16 decoding fails on the file.

BAD_FUNC_ARG is the error that will be returned if a pointer is not provided.

Parameters

cm	a pointer to a WOLFSSL_CERT_MANAGER structure, created using wolfSSL_CertManagerNew().
buff	buffer containing the certificates to verify.
sz	size of the buffer, buf.
format	format of the certificate to verify, located in buf - either SSL_FILETYPE_ASN1 or SSL_FILETYPE_PEM.

Example

#include <wolfssl/ssl.h>
 
int ret = 0;
int sz = 0;
WOLFSSL_CERT_MANAGER* cm;
byte certBuff[...];
...
 
ret = wolfSSL_CertManagerVerifyBuffer(cm, certBuff, sz, SSL_FILETYPE_PEM);
if (ret != SSL_SUCCESS) {
    error verifying certificate
}

See also

wolfSSL_CertManagerLoadCA

wolfSSL_CertManagerVerify