1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
use bitflags::bitflags;
use foreign_types::ForeignTypeRef;
use libc::{c_int, c_uint, c_ulong, time_t};
use std::net::IpAddr;

use crate::error::ErrorStack;
#[cfg(ossl102)]
use crate::x509::X509PurposeId;
use crate::{cvt, cvt_p};
use openssl_macros::corresponds;

bitflags! {
    /// Flags used to check an `X509` certificate.
    pub struct X509CheckFlags: c_uint {
        const ALWAYS_CHECK_SUBJECT = ffi::X509_CHECK_FLAG_ALWAYS_CHECK_SUBJECT;
        const NO_WILDCARDS = ffi::X509_CHECK_FLAG_NO_WILDCARDS;
        const NO_PARTIAL_WILDCARDS = ffi::X509_CHECK_FLAG_NO_PARTIAL_WILDCARDS;
        const MULTI_LABEL_WILDCARDS = ffi::X509_CHECK_FLAG_MULTI_LABEL_WILDCARDS;
        const SINGLE_LABEL_SUBDOMAINS = ffi::X509_CHECK_FLAG_SINGLE_LABEL_SUBDOMAINS;
        /// Requires OpenSSL 1.1.0 or newer.
        #[cfg(any(ossl110))]
        const NEVER_CHECK_SUBJECT = ffi::X509_CHECK_FLAG_NEVER_CHECK_SUBJECT;

        #[deprecated(since = "0.10.6", note = "renamed to NO_WILDCARDS")]
        const FLAG_NO_WILDCARDS = ffi::X509_CHECK_FLAG_NO_WILDCARDS;
    }
}

bitflags! {
    /// Flags used to verify an `X509` certificate chain.
    pub struct X509VerifyFlags: c_ulong {
        const CB_ISSUER_CHECK = ffi::X509_V_FLAG_CB_ISSUER_CHECK;
        const USE_CHECK_TIME = ffi::X509_V_FLAG_USE_CHECK_TIME;
        const CRL_CHECK = ffi::X509_V_FLAG_CRL_CHECK;
        const CRL_CHECK_ALL = ffi::X509_V_FLAG_CRL_CHECK_ALL;
        const IGNORE_CRITICAL = ffi::X509_V_FLAG_IGNORE_CRITICAL;
        const X509_STRICT = ffi::X509_V_FLAG_X509_STRICT;
        const ALLOW_PROXY_CERTS = ffi::X509_V_FLAG_ALLOW_PROXY_CERTS;
        const POLICY_CHECK = ffi::X509_V_FLAG_POLICY_CHECK;
        const EXPLICIT_POLICY = ffi::X509_V_FLAG_EXPLICIT_POLICY;
        const INHIBIT_ANY = ffi::X509_V_FLAG_INHIBIT_ANY;
        const INHIBIT_MAP = ffi::X509_V_FLAG_INHIBIT_MAP;
        const NOTIFY_POLICY = ffi::X509_V_FLAG_NOTIFY_POLICY;
        const EXTENDED_CRL_SUPPORT = ffi::X509_V_FLAG_EXTENDED_CRL_SUPPORT;
        const USE_DELTAS = ffi::X509_V_FLAG_USE_DELTAS;
        const CHECK_SS_SIGNATURE = ffi::X509_V_FLAG_CHECK_SS_SIGNATURE;
        #[cfg(ossl102)]
        const TRUSTED_FIRST = ffi::X509_V_FLAG_TRUSTED_FIRST;
        #[cfg(ossl102)]
        const SUITEB_128_LOS_ONLY = ffi::X509_V_FLAG_SUITEB_128_LOS_ONLY;
        #[cfg(ossl102)]
        const SUITEB_192_LOS = ffi::X509_V_FLAG_SUITEB_128_LOS;
        #[cfg(ossl102)]
        const SUITEB_128_LOS = ffi::X509_V_FLAG_SUITEB_192_LOS;
        #[cfg(ossl102)]
        const PARTIAL_CHAIN = ffi::X509_V_FLAG_PARTIAL_CHAIN;
        #[cfg(ossl110)]
        const NO_ALT_CHAINS = ffi::X509_V_FLAG_NO_ALT_CHAINS;
        #[cfg(ossl110)]
        const NO_CHECK_TIME = ffi::X509_V_FLAG_NO_CHECK_TIME;
    }
}

foreign_type_and_impl_send_sync! {
    type CType = ffi::X509_VERIFY_PARAM;
    fn drop = ffi::X509_VERIFY_PARAM_free;

    /// Adjust parameters associated with certificate verification.
    pub struct X509VerifyParam;
    /// Reference to `X509VerifyParam`.
    pub struct X509VerifyParamRef;
}

impl X509VerifyParam {
    /// Create an X509VerifyParam
    #[corresponds(X509_VERIFY_PARAM_new)]
    pub fn new() -> Result<X509VerifyParam, ErrorStack> {
        unsafe {
            ffi::init();
            cvt_p(ffi::X509_VERIFY_PARAM_new()).map(X509VerifyParam)
        }
    }
}

impl X509VerifyParamRef {
    /// Set the host flags.
    #[corresponds(X509_VERIFY_PARAM_set_hostflags)]
    pub fn set_hostflags(&mut self, hostflags: X509CheckFlags) {
        unsafe {
            ffi::X509_VERIFY_PARAM_set_hostflags(self.as_ptr(), hostflags.bits);
        }
    }

    /// Set verification flags.
    #[corresponds(X509_VERIFY_PARAM_set_flags)]
    pub fn set_flags(&mut self, flags: X509VerifyFlags) -> Result<(), ErrorStack> {
        unsafe { cvt(ffi::X509_VERIFY_PARAM_set_flags(self.as_ptr(), flags.bits)).map(|_| ()) }
    }

    /// Clear verification flags.
    #[corresponds(X509_VERIFY_PARAM_clear_flags)]
    pub fn clear_flags(&mut self, flags: X509VerifyFlags) -> Result<(), ErrorStack> {
        unsafe {
            cvt(ffi::X509_VERIFY_PARAM_clear_flags(
                self.as_ptr(),
                flags.bits,
            ))
            .map(|_| ())
        }
    }

    /// Gets verification flags.
    #[corresponds(X509_VERIFY_PARAM_get_flags)]
    pub fn flags(&mut self) -> X509VerifyFlags {
        let bits = unsafe { ffi::X509_VERIFY_PARAM_get_flags(self.as_ptr()) };
        X509VerifyFlags { bits }
    }

    /// Set the expected DNS hostname.
    #[corresponds(X509_VERIFY_PARAM_set1_host)]
    pub fn set_host(&mut self, host: &str) -> Result<(), ErrorStack> {
        unsafe {
            cvt(ffi::X509_VERIFY_PARAM_set1_host(
                self.as_ptr(),
                host.as_ptr() as *const _,
                host.len(),
            ))
            .map(|_| ())
        }
    }

    /// Set the expected IPv4 or IPv6 address.
    #[corresponds(X509_VERIFY_PARAM_set1_ip)]
    pub fn set_ip(&mut self, ip: IpAddr) -> Result<(), ErrorStack> {
        unsafe {
            let mut buf = [0; 16];
            let len = match ip {
                IpAddr::V4(addr) => {
                    buf[..4].copy_from_slice(&addr.octets());
                    4
                }
                IpAddr::V6(addr) => {
                    buf.copy_from_slice(&addr.octets());
                    16
                }
            };
            cvt(ffi::X509_VERIFY_PARAM_set1_ip(
                self.as_ptr(),
                buf.as_ptr() as *const _,
                len,
            ))
            .map(|_| ())
        }
    }

    /// Set the verification time, where time is of type time_t, traditionaly defined as seconds since the epoch
    #[corresponds(X509_VERIFY_PARAM_set_time)]
    pub fn set_time(&mut self, time: time_t) {
        unsafe { ffi::X509_VERIFY_PARAM_set_time(self.as_ptr(), time) }
    }

    /// Set the verification depth
    #[corresponds(X509_VERIFY_PARAM_set_depth)]
    pub fn set_depth(&mut self, depth: c_int) {
        unsafe { ffi::X509_VERIFY_PARAM_set_depth(self.as_ptr(), depth) }
    }

    /// Sets the authentication security level to auth_level
    #[corresponds(X509_VERIFY_PARAM_set_auth_level)]
    #[cfg(ossl110)]
    pub fn set_auth_level(&mut self, lvl: c_int) {
        unsafe { ffi::X509_VERIFY_PARAM_set_auth_level(self.as_ptr(), lvl) }
    }

    /// Gets the current authentication security level
    #[corresponds(X509_VERIFY_PARAM_get_auth_level)]
    #[cfg(ossl110)]
    pub fn auth_level(&self) -> i32 {
        unsafe { ffi::X509_VERIFY_PARAM_get_auth_level(self.as_ptr()) }
    }

    /// Sets the verification purpose
    #[corresponds(X509_VERIFY_PARAM_set_purpose)]
    #[cfg(ossl102)]
    pub fn set_purpose(&mut self, purpose: X509PurposeId) -> Result<(), ErrorStack> {
        unsafe { cvt(ffi::X509_VERIFY_PARAM_set_purpose(self.as_ptr(), purpose.0)).map(|_| ()) }
    }
}