1gnutls_x509_trust_list_verify_crt2(3)gnutlsgnutls_x509_trust_list_verify_crt2(3)
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NAME

6       gnutls_x509_trust_list_verify_crt2 - API function
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SYNOPSIS

9       #include <gnutls/x509.h>
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11       int  gnutls_x509_trust_list_verify_crt2(gnutls_x509_trust_list_t  list,
12       gnutls_x509_crt_t   *   cert_list,   unsigned    int    cert_list_size,
13       gnutls_typed_vdata_st  *  data,  unsigned  int  elements,  unsigned int
14       flags, unsigned int * voutput, gnutls_verify_output_function func);
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ARGUMENTS

17       gnutls_x509_trust_list_t list
18                   The list
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20       gnutls_x509_crt_t * cert_list
21                   is the certificate list to be verified
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23       unsigned int cert_list_size
24                   is the certificate list size
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26       gnutls_typed_vdata_st * data
27                   an array of typed data
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29       unsigned int elements
30                   the number of data elements
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32       unsigned int flags
33                   Flags that may be used to  change  the  verification  algo‐
34                   rithm.  Use  OR of the gnutls_certificate_verify_flags enu‐
35                   merations.
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37       unsigned int * voutput
38                   will hold the certificate verification output.
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40       gnutls_verify_output_function func
41                   If non-null will be called on each chain element  verifica‐
42                   tion with the output.
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DESCRIPTION

45       This  function  will  attempt to verify the given certificate chain and
46       return its status. The  voutput parameter will hold an  OR'ed  sequence
47       of gnutls_certificate_status_t flags.
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49       When a certificate chain of  cert_list_size with more than one certifi‐
50       cates is provided, the verification status will apply to the first cer‐
51       tificate  in  the  chain  that  failed  verification.  The verification
52       process starts from the end of the chain (from CA to end  certificate).
53       The  first  certificate  in the chain must be the end-certificate while
54       the rest of the members may be sorted or not.
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56       Additionally a certificate verification profile can be  specified  from
57       the  ones  in  gnutls_certificate_verification_profiles_t  by ORing the
58       result of GNUTLS_PROFILE_TO_VFLAGS() to the verification flags.
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60       Additional verification parameters are possible via  the   data  types;
61       the  acceptable  types are GNUTLS_DT_DNS_HOSTNAME, GNUTLS_DT_IP_ADDRESS
62       and GNUTLS_DT_KEY_PURPOSE_OID.  The former accepts as data a  null-ter‐
63       minated  hostname,  and  the latter a null-terminated object identifier
64       (e.g., GNUTLS_KP_TLS_WWW_SERVER).  If a DNS hostname is  provided  then
65       this  function will compare the hostname in the end certificate against
66       the given. If names do not match the GNUTLS_CERT_UNEXPECTED_OWNER  sta‐
67       tus  flag  will  be set. In addition it will consider certificates pro‐
68       vided with gnutls_x509_trust_list_add_named_crt().
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70       If a key purpose OID is provided and the end-certificate  contains  the
71       extended  key  usage  PKIX  extension, it will be required to match the
72       provided OID or be marked for any purpose, otherwise verification  will
73       fail with GNUTLS_CERT_PURPOSE_MISMATCH status.
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RETURNS

76       On  success,  GNUTLS_E_SUCCESS  (0)  is  returned, otherwise a negative
77       error value. Note that verification failure will not result to an error
78       code, only  voutput will be updated.
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SINCE

81       3.3.8
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REPORTING BUGS

84       Report bugs to <bugs@gnutls.org>.
85       Home page: https://www.gnutls.org
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87
89       Copyright © 2001-2019 Free Software Foundation, Inc., and others.
90       Copying  and  distribution  of this file, with or without modification,
91       are permitted in any medium  without  royalty  provided  the  copyright
92       notice and this notice are preserved.
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SEE ALSO

95       The  full  documentation  for gnutls is maintained as a Texinfo manual.
96       If the /usr/share/doc/gnutls/ directory does not contain the HTML  form
97       visit
98
99       https://www.gnutls.org/manual/
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101gnutls                               3.6.8gnutls_x509_trust_list_verify_crt2(3)
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