Merge branch 'mbedtls-1.3' into mbedtls-1.3-restricted
* mbedtls-1.3:
Use own implementation of strsep()
Add Changelog entries for this branch
Use symbolic constants in test data
Fixed pathlen contraint enforcement.
Additional corner cases for testing pathlen constrains. Just in case.
Added test case for pathlen constrains in intermediate certificates
diff --git a/ChangeLog b/ChangeLog
index 57592b4..52c1bcb 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -13,8 +13,14 @@
Cannot be triggered remotely unless you create X.509 certificates based
on untrusted input or write keys of untrusted origin. Found by Guido
Vranken, Interlworks.
+ * The X509 max_pathlen constraint was not enforced on intermediate
+ certificates. Found by Nicholas Wilson, fix and tests provided by
+ Janos Follath. #280 and #319
Bugfix
+ * Self-signed certificates were not excluded from pathlen counting,
+ resulting in some valid X.509 being incorrectly rejected. Found and fix
+ provided by Janos Follath. #319
* Fix bug causing some handshakes to fail due to some non-fatal alerts not
begin properly ignored. Found by mancha and Kasom Koht-arsa, #308
* Fix build error with configurations where ECDHE-PSK is the only key
diff --git a/library/x509_crt.c b/library/x509_crt.c
index 200f6bb..92a9b17 100644
--- a/library/x509_crt.c
+++ b/library/x509_crt.c
@@ -1766,7 +1766,8 @@
static int x509_crt_verify_top(
x509_crt *child, x509_crt *trust_ca,
- x509_crl *ca_crl, int path_cnt, int *flags,
+ x509_crl *ca_crl,
+ int path_cnt, int self_cnt, int *flags,
int (*f_vrfy)(void *, x509_crt *, int, int *),
void *p_vrfy )
{
@@ -1815,8 +1816,9 @@
check_path_cnt--;
}
+ /* Self signed certificates do not count towards the limit */
if( trust_ca->max_pathlen > 0 &&
- trust_ca->max_pathlen < check_path_cnt )
+ trust_ca->max_pathlen < check_path_cnt - self_cnt )
{
continue;
}
@@ -1881,8 +1883,9 @@
}
static int x509_crt_verify_child(
- x509_crt *child, x509_crt *parent, x509_crt *trust_ca,
- x509_crl *ca_crl, int path_cnt, int *flags,
+ x509_crt *child, x509_crt *parent,
+ x509_crt *trust_ca, x509_crl *ca_crl,
+ int path_cnt, int self_cnt, int *flags,
int (*f_vrfy)(void *, x509_crt *, int, int *),
void *p_vrfy )
{
@@ -1892,6 +1895,10 @@
x509_crt *grandparent;
const md_info_t *md_info;
+ /* Counting intermediate self signed certificates */
+ if( ( path_cnt != 0 ) && x509_name_cmp( &child->issuer, &child->subject ) == 0 )
+ self_cnt++;
+
/* path_cnt is 0 for the first intermediate CA */
if( 1 + path_cnt > POLARSSL_X509_MAX_INTERMEDIATE_CA )
{
@@ -1943,7 +1950,7 @@
if( grandparent != NULL )
{
ret = x509_crt_verify_top( parent, grandparent, ca_crl,
- path_cnt + 1, &parent_flags, f_vrfy, p_vrfy );
+ path_cnt + 1, self_cnt, &parent_flags, f_vrfy, p_vrfy );
if( ret != 0 )
return( ret );
}
@@ -1954,6 +1961,15 @@
grandparent != NULL;
grandparent = grandparent->next )
{
+ /* +2 because the current step is not yet accounted for
+ * and because max_pathlen is one higher than it should be.
+ * Also self signed certificates do not count to the limit. */
+ if( grandparent->max_pathlen > 0 &&
+ grandparent->max_pathlen < 2 + path_cnt - self_cnt )
+ {
+ continue;
+ }
+
if( x509_crt_check_parent( parent, grandparent,
0, path_cnt == 0 ) == 0 )
break;
@@ -1963,7 +1979,7 @@
if( grandparent != NULL )
{
ret = x509_crt_verify_child( parent, grandparent, trust_ca, ca_crl,
- path_cnt + 1, &parent_flags,
+ path_cnt + 1, self_cnt, &parent_flags,
f_vrfy, p_vrfy );
if( ret != 0 )
return( ret );
@@ -1971,7 +1987,7 @@
else
{
ret = x509_crt_verify_top( parent, trust_ca, ca_crl,
- path_cnt + 1, &parent_flags,
+ path_cnt + 1, self_cnt, &parent_flags,
f_vrfy, p_vrfy );
if( ret != 0 )
return( ret );
@@ -2001,6 +2017,7 @@
size_t cn_len;
int ret;
int pathlen = 0;
+ int selfsigned = 0;
x509_crt *parent;
x509_name *name;
x509_sequence *cur = NULL;
@@ -2067,7 +2084,7 @@
if( parent != NULL )
{
ret = x509_crt_verify_top( crt, parent, ca_crl,
- pathlen, flags, f_vrfy, p_vrfy );
+ pathlen, selfsigned, flags, f_vrfy, p_vrfy );
if( ret != 0 )
return( ret );
}
@@ -2076,6 +2093,14 @@
/* Look for a parent upwards the chain */
for( parent = crt->next; parent != NULL; parent = parent->next )
{
+ /* +2 because the current step is not yet accounted for
+ * and because max_pathlen is one higher than it should be */
+ if( parent->max_pathlen > 0 &&
+ parent->max_pathlen < 2 + pathlen )
+ {
+ continue;
+ }
+
if( x509_crt_check_parent( crt, parent, 0, pathlen == 0 ) == 0 )
break;
}
@@ -2084,14 +2109,14 @@
if( parent != NULL )
{
ret = x509_crt_verify_child( crt, parent, trust_ca, ca_crl,
- pathlen, flags, f_vrfy, p_vrfy );
+ pathlen, selfsigned, flags, f_vrfy, p_vrfy );
if( ret != 0 )
return( ret );
}
else
{
ret = x509_crt_verify_top( crt, trust_ca, ca_crl,
- pathlen, flags, f_vrfy, p_vrfy );
+ pathlen, selfsigned, flags, f_vrfy, p_vrfy );
if( ret != 0 )
return( ret );
}
diff --git a/tests/data_files/dir4/Readme b/tests/data_files/dir4/Readme
new file mode 100644
index 0000000..5732a64
--- /dev/null
+++ b/tests/data_files/dir4/Readme
@@ -0,0 +1,38 @@
+This directory contains the certificates for the tests targeting the enforcement of the policy indicated by the *pathLenConstraint* field. All leaf elements were generated with *is_ca* unset and all roots with the *selfsign=1* option.
+
+1. zero pathlen constraint on an intermediate CA (invalid)
+```
+cert11.crt -> cert12.crt (max_pathlen=0) -> cert13.crt -> cert14.crt
+```
+
+2. zero pathlen constraint on the root CA (invalid)
+```
+cert21.crt (max_pathlen=0) -> cert22.crt -> cert23.crt
+```
+
+3. nonzero pathlen constraint on the root CA (invalid)
+```
+cert31.crt (max_pathlen=1) -> cert32.crt -> cert33.crt -> cert34.crt
+```
+
+4. nonzero pathlen constraint on an intermediate CA (invalid)
+```
+cert41.crt -> cert42.crt (max_pathlen=1) -> cert43.crt -> cert44.crt -> cert45.crt
+```
+
+5. nonzero pathlen constraint on an intermediate CA with maximum number of elements in the chain (valid)
+```
+cert51.crt -> cert52.crt (max_pathlen=1) -> cert53.crt -> cert54.crt
+```
+
+6. nonzero pathlen constraint on the root CA with maximum number of elements in the chain (valid)
+```
+cert61.crt (max_pathlen=1) -> cert62.crt -> cert63.crt
+```
+
+7. pathlen constraint on the root CA with maximum number of elements and a self signed certificate in the chain (valid)
+(This situation happens for example when a root of some hierarchy gets integrated into another hierarchy. In this case the certificates issued before the integration will have an intermadiate self signed certificate in their chain)
+```
+cert71.crt (max_pathlen=1) -> cert72.crt -> cert73.crt (self signed) -> cert74.crt -> cert74.crt
+```
+
diff --git a/tests/data_files/dir4/cert11.crt b/tests/data_files/dir4/cert11.crt
new file mode 100644
index 0000000..3077c3d
--- /dev/null
+++ b/tests/data_files/dir4/cert11.crt
@@ -0,0 +1,18 @@
+-----BEGIN CERTIFICATE-----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+-----END CERTIFICATE-----
diff --git a/tests/data_files/dir4/cert12.crt b/tests/data_files/dir4/cert12.crt
new file mode 100644
index 0000000..fd88c2d
--- /dev/null
+++ b/tests/data_files/dir4/cert12.crt
@@ -0,0 +1,19 @@
+-----BEGIN CERTIFICATE-----
+MIIDCjCCAfKgAwIBAgIBATANBgkqhkiG9w0BAQsFADAWMRQwEgYDVQQDEwtUZXN0
+IHJvb3QgMjAeFw0wMTAxMDEwMDAwMDBaFw0zMDEyMzEyMzU5NTlaMCYxJDAiBgNV
+BAMTG1Rlc3QgaW50ZXJtZWRpYXRlIG1heHBhdGggMTCCASIwDQYJKoZIhvcNAQEB
+BQADggEPADCCAQoCggEBANJrP7/Y+KjupvlgaOmQYArfGuoh3CzcdPe/mlhq+fxD
+8U9qzgSVuVR+FpNZi9DyMljMBrWV1OnZI+cVCDYYkNMa3IkV+AkzJGqwcSBKE+6N
+RXZvv+I4xbGymdSSaT6Kh1PgPVk/EYNfLFF30pBsycjM81aMtZgW6aA9xCSp0r8W
+XkZodsrJUQerDh/7VmDVEeKanZog8auvrvs/ENiA8d4p/75lOIER4nLz6SSn5Eqy
+uXzNCwmT5PVwWStXbDD7EBs3rOtR2VNWQ9o6QdfKQOe/SkIddZr1IWGEJ8JHjtNo
+jxcYO67A+Jgp1Jwjk+83eRICs0hlWyeHWfBlbOVIKLcCAwEAAaNTMFEwDwYDVR0T
+BAgwBgEBAQIBADAdBgNVHQ4EFgQUyw8Phy/FAvifGQ+G6HWkMiWzyqUwHwYDVR0j
+BBgwFoAUlB0h+oI62BWZ0tYA75OwaX8EysAwDQYJKoZIhvcNAQELBQADggEBACFS
+6tFy9TpVMUfh1mkr3rFEVtho0NJkRhJW8z2PTmKQa069S9gS+U6+CsqwvM1y3yyh
+Pt2q34fhhhbQ+gS8iAm+zvQtBsys3frfVkeKmRzxWDh2LnT+tJi/xtqdlULua5NB
+21So46HdlceDTuv2vUbrHgxUS/IEjIL6OZZ0Sc6S6YybvGSioGsRUHO2k2IiOnUa
+C+hpBvOkXScnItfdMKAAce71CsZeN97sbxeNIMBDiX9bSy+dZLscEhRwBUABiNr/
+sYdYvIpbrFXowjMtBdac+vvhcem7dkCrCdsGylGINWhE2tC9hKmFkFXo4mu/AGDS
+M4/59TlMeK8X+WZ9zBs=
+-----END CERTIFICATE-----
diff --git a/tests/data_files/dir4/cert13.crt b/tests/data_files/dir4/cert13.crt
new file mode 100644
index 0000000..ac01a22
--- /dev/null
+++ b/tests/data_files/dir4/cert13.crt
@@ -0,0 +1,19 @@
+-----BEGIN CERTIFICATE-----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+-----END CERTIFICATE-----
diff --git a/tests/data_files/dir4/cert14.crt b/tests/data_files/dir4/cert14.crt
new file mode 100644
index 0000000..49e1cbb
--- /dev/null
+++ b/tests/data_files/dir4/cert14.crt
@@ -0,0 +1,19 @@
+-----BEGIN CERTIFICATE-----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+-----END CERTIFICATE-----
diff --git a/tests/data_files/dir4/cert21.crt b/tests/data_files/dir4/cert21.crt
new file mode 100644
index 0000000..501c5d7
--- /dev/null
+++ b/tests/data_files/dir4/cert21.crt
@@ -0,0 +1,18 @@
+-----BEGIN CERTIFICATE-----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==
+-----END CERTIFICATE-----
diff --git a/tests/data_files/dir4/cert22.crt b/tests/data_files/dir4/cert22.crt
new file mode 100644
index 0000000..5dcd65d
--- /dev/null
+++ b/tests/data_files/dir4/cert22.crt
@@ -0,0 +1,19 @@
+-----BEGIN CERTIFICATE-----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+-----END CERTIFICATE-----
diff --git a/tests/data_files/dir4/cert23.crt b/tests/data_files/dir4/cert23.crt
new file mode 100644
index 0000000..6c54725
--- /dev/null
+++ b/tests/data_files/dir4/cert23.crt
@@ -0,0 +1,19 @@
+-----BEGIN CERTIFICATE-----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+-----END CERTIFICATE-----
diff --git a/tests/data_files/dir4/cert31.crt b/tests/data_files/dir4/cert31.crt
new file mode 100644
index 0000000..8c2af4c
--- /dev/null
+++ b/tests/data_files/dir4/cert31.crt
@@ -0,0 +1,18 @@
+-----BEGIN CERTIFICATE-----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==
+-----END CERTIFICATE-----
diff --git a/tests/data_files/dir4/cert32.crt b/tests/data_files/dir4/cert32.crt
new file mode 100644
index 0000000..5dcd65d
--- /dev/null
+++ b/tests/data_files/dir4/cert32.crt
@@ -0,0 +1,19 @@
+-----BEGIN CERTIFICATE-----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+-----END CERTIFICATE-----
diff --git a/tests/data_files/dir4/cert33.crt b/tests/data_files/dir4/cert33.crt
new file mode 100644
index 0000000..8e5d192
--- /dev/null
+++ b/tests/data_files/dir4/cert33.crt
@@ -0,0 +1,19 @@
+-----BEGIN CERTIFICATE-----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+-----END CERTIFICATE-----
diff --git a/tests/data_files/dir4/cert34.crt b/tests/data_files/dir4/cert34.crt
new file mode 100644
index 0000000..bebcb65
--- /dev/null
+++ b/tests/data_files/dir4/cert34.crt
@@ -0,0 +1,19 @@
+-----BEGIN CERTIFICATE-----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+-----END CERTIFICATE-----
diff --git a/tests/data_files/dir4/cert41.crt b/tests/data_files/dir4/cert41.crt
new file mode 100644
index 0000000..7065c94
--- /dev/null
+++ b/tests/data_files/dir4/cert41.crt
@@ -0,0 +1,18 @@
+-----BEGIN CERTIFICATE-----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+-----END CERTIFICATE-----
diff --git a/tests/data_files/dir4/cert42.crt b/tests/data_files/dir4/cert42.crt
new file mode 100644
index 0000000..c071318
--- /dev/null
+++ b/tests/data_files/dir4/cert42.crt
@@ -0,0 +1,19 @@
+-----BEGIN CERTIFICATE-----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+-----END CERTIFICATE-----
diff --git a/tests/data_files/dir4/cert43.crt b/tests/data_files/dir4/cert43.crt
new file mode 100644
index 0000000..8e5d192
--- /dev/null
+++ b/tests/data_files/dir4/cert43.crt
@@ -0,0 +1,19 @@
+-----BEGIN CERTIFICATE-----
+MIIDFzCCAf+gAwIBAgIBATANBgkqhkiG9w0BAQsFADAmMSQwIgYDVQQDExtUZXN0
+IGludGVybWVkaWF0ZSBtYXhwYXRoIDEwHhcNMDEwMTAxMDAwMDAwWhcNMzAxMjMx
+MjM1OTU5WjAmMSQwIgYDVQQDExtUZXN0IGludGVybWVkaWF0ZSBtYXhwYXRoIDIw
+ggEiMA0GCSqGSIb3DQEBAQUAA4IBDwAwggEKAoIBAQCKAaAcY1Y2QRZYWft5pTiQ
+LZaNHdG1wGyhbUyVCd1S/BZQeBxt8iDueHro6LpeXcioAyMePUnQQ8ZzBN+Yt1pG
+83fwqNMyHf8WIWutQvQw2CIbGORO2FaCx9XgL+Le9ENMJb7ZQwV13r7PuHAV/6V1
+OwI/1Cn73cZ2uyWu8BHZbSqMctQsAkaT/pbPEUbrF4KB2GSigM+mux+Vkn9w3VK6
+pNg5pUwCP0lqi9K1RNWEXyi4NQumrR+IEiaiV05twZ1oBaWBGXSTw12hIulZ3/v6
+GLiwfk9I5mr7yDWVDdyCsTu1rhfen+Lp4ClyfWHISRPL1mko4W9leczgPWPz4pIp
+AgMBAAGjUDBOMAwGA1UdEwQFMAMBAQEwHQYDVR0OBBYEFMI3a8MtjW1x6dPPJGaV
+LhMF7bGKMB8GA1UdIwQYMBaAFDgZfHnVZvx+cXUthBhHi837Wfw1MA0GCSqGSIb3
+DQEBCwUAA4IBAQCprzpoj6UaEG4eqLg2L3HqsvY73/XE8ytuZ9wDC3HodnmpezUX
+48XwJPHFO7OGPGWZgsU2qX/Zp7yUXkVFSK4VnmnSzUtXNVlU0oWEEOzQLrpphksH
+dcF8YNN/Y65KnhzIU784uHeFefUpPaE6yS5OSZboptZWVF9y1LoU3F7gN0UGvVG9
+hflz5O0/KvmYd+6+Yrje+2lbHiJHNXLmOPiZyk9TBDknygBuU14IOWghQim3yks9
+tKk8D38Vl85V5aG9nO4STjx5J8BtSl0x6wW3t9WwU5UC9geCROhZI1XRBafIoKkn
+VSgHLpLTARtLikbbg/3SxpnW12msHvgLVasf
+-----END CERTIFICATE-----
diff --git a/tests/data_files/dir4/cert44.crt b/tests/data_files/dir4/cert44.crt
new file mode 100644
index 0000000..084fb2d
--- /dev/null
+++ b/tests/data_files/dir4/cert44.crt
@@ -0,0 +1,19 @@
+-----BEGIN CERTIFICATE-----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+-----END CERTIFICATE-----
diff --git a/tests/data_files/dir4/cert45.crt b/tests/data_files/dir4/cert45.crt
new file mode 100644
index 0000000..e5d5b3d
--- /dev/null
+++ b/tests/data_files/dir4/cert45.crt
@@ -0,0 +1,19 @@
+-----BEGIN CERTIFICATE-----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+-----END CERTIFICATE-----
diff --git a/tests/data_files/dir4/cert51.crt b/tests/data_files/dir4/cert51.crt
new file mode 100644
index 0000000..7065c94
--- /dev/null
+++ b/tests/data_files/dir4/cert51.crt
@@ -0,0 +1,18 @@
+-----BEGIN CERTIFICATE-----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+-----END CERTIFICATE-----
diff --git a/tests/data_files/dir4/cert52.crt b/tests/data_files/dir4/cert52.crt
new file mode 100644
index 0000000..c071318
--- /dev/null
+++ b/tests/data_files/dir4/cert52.crt
@@ -0,0 +1,19 @@
+-----BEGIN CERTIFICATE-----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+-----END CERTIFICATE-----
diff --git a/tests/data_files/dir4/cert53.crt b/tests/data_files/dir4/cert53.crt
new file mode 100644
index 0000000..8e5d192
--- /dev/null
+++ b/tests/data_files/dir4/cert53.crt
@@ -0,0 +1,19 @@
+-----BEGIN CERTIFICATE-----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+-----END CERTIFICATE-----
diff --git a/tests/data_files/dir4/cert54.crt b/tests/data_files/dir4/cert54.crt
new file mode 100644
index 0000000..e42e14f
--- /dev/null
+++ b/tests/data_files/dir4/cert54.crt
@@ -0,0 +1,19 @@
+-----BEGIN CERTIFICATE-----
+MIIDCjCCAfKgAwIBAgIBATANBgkqhkiG9w0BAQsFADAmMSQwIgYDVQQDExtUZXN0
+IGludGVybWVkaWF0ZSBtYXhwYXRoIDIwHhcNMDEwMTAxMDAwMDAwWhcNMzAxMjMx
+MjM1OTU5WjAcMRowGAYDVQQDExFUZXN0IExlYWYgNCB2YWxpZDCCASIwDQYJKoZI
+hvcNAQEBBQADggEPADCCAQoCggEBAJEq4FhQ+JWENERf895iWY59ZYDQZIZwj9IX
+Iib/3raDDd2wgfrnPH6NMMQ0NmXG80wENKgTZ4ybwCdarJWQPW6CASpk/CUosYov
+9V0w1iNxOWjr19YepVuuqVbCMy5tDQH9FSZ9sS8NGL/IXym8I3DXgH5uxgsCQfLJ
+I3pDCifPnuqT+GR8Zq5zqNJFJQoPMPESs2erGCcV9RE3pFjxFEl67HEP2Eo6Ts4y
+w6YdZTuIFRKwYXSYCaSc56pK0QYke3/4SK6QFd8DlG7X68ayG+RVzjPa7f7L1kUa
+8yFBpwb6NOFmfikBz7DJ/vcfIvv7bnjoNSi37NdIVtEVrE0I5jkCAwEAAaNNMEsw
+CQYDVR0TBAIwADAdBgNVHQ4EFgQUjga9VOIeT2Mjqhnv4CYMFpOxX3swHwYDVR0j
+BBgwFoAUwjdrwy2NbXHp088kZpUuEwXtsYowDQYJKoZIhvcNAQELBQADggEBADdp
+VpPr4AzE7ecrhclQKGjPa7leaorYuevjTLWsieY17mVQhlMX1itTNXlPBUfPAsOd
+O7LUgY0yZOnV7l8TbfGal8pIF+acgFLgqM5A6z8ngChMi6iKEZChDVffAVHJs3e/
+WUm7VeFY8Mvwnay3iHj2trC7XQX2SZCovXYfNP3bVyqIaDNqt6SPY1skouWpmmUn
+ISzcyH6EU/CegFjHJyXxrsIW9Nv2mDejrmcR0EJOmEAfWUgonfemeX93xkwZHW2s
+lZ8/e6rTPPSGdhY/b4VRu6o1FpLcPLGZSgPwYBNVYtgT4WsoT0xUvm6Y1WipiZda
+B/bpiL8l4GSVtTw1Jko=
+-----END CERTIFICATE-----
diff --git a/tests/data_files/dir4/cert61.crt b/tests/data_files/dir4/cert61.crt
new file mode 100644
index 0000000..8c2af4c
--- /dev/null
+++ b/tests/data_files/dir4/cert61.crt
@@ -0,0 +1,18 @@
+-----BEGIN CERTIFICATE-----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==
+-----END CERTIFICATE-----
diff --git a/tests/data_files/dir4/cert62.crt b/tests/data_files/dir4/cert62.crt
new file mode 100644
index 0000000..5dcd65d
--- /dev/null
+++ b/tests/data_files/dir4/cert62.crt
@@ -0,0 +1,19 @@
+-----BEGIN CERTIFICATE-----
+MIIDBzCCAe+gAwIBAgIBATANBgkqhkiG9w0BAQsFADAWMRQwEgYDVQQDEwtUZXN0
+IHJvb3QgMjAeFw0wMTAxMDEwMDAwMDBaFw0zMDEyMzEyMzU5NTlaMCYxJDAiBgNV
+BAMTG1Rlc3QgaW50ZXJtZWRpYXRlIG1heHBhdGggMTCCASIwDQYJKoZIhvcNAQEB
+BQADggEPADCCAQoCggEBANpGlBMXdo8cO9oqUw/b6PMwiMNV8LCe6wB9VKHPa6OG
+Q0o8Xqktgwnh1rojgpMhbCApE7UXeMr6ZGq/NtqmO1hO5adV5JehWZyvg7j4EBpG
+g8iWo0jNpKMJ0Yx1uBkkljEdZLTHa4bK/zy2NKqDNS2yWs9/M5+xw5XE2ecAg7FT
+cXhf3q50V+M6T2IaQ9BxntTyCT8IIF2eRM/t9Y944s9Rfzm/KQVKRYPudX7YhTt9
+iqCJB4JoqYhs3HEO0wPkJxY4KBTUCN94s+7jUFdRrYxe+8Ya6tIYWqD38i5qdGhY
+xrVey1LatsDJQ2EgNYobM/LjoCLK1WUssEqf0OU2bi0CAwEAAaNQME4wDAYDVR0T
+BAUwAwEBATAdBgNVHQ4EFgQUOBl8edVm/H5xdS2EGEeLzftZ/DUwHwYDVR0jBBgw
+FoAUjgXdXx9NGPa+UvHBC4//SE+ARpQwDQYJKoZIhvcNAQELBQADggEBAFwZriTu
+DKkiDHFfz3UX4fIxYTHCi4TveYZGPeTbxhBb3XZC5qDF4T5HvCTSkG9+oFfZzI1a
+lPN2yZB7QnmHJoyWa5fuovwUL0iI3iIZMqU56tdVPW8gkJe++U5kHMSpz2VF0eo8
+7XkKWxZovRwczgfDFRP9zM9CylyzQjqxx6kbxJozWnwc5UrVbJMaPIqonXp1nDoZ
+i878+hX4rJUEjgO6Sa9GVZQpmuCrQF0qKsTiUBzZN67hoD3xoTAYi5IXQE2tRD1N
+j3zwng9liCsxurGMnuV0BPWv/IDYRu/syjee1Qv1VFeRto5D4Rldmi2p1f5iWJCk
+5m5YpRsknaICjYs=
+-----END CERTIFICATE-----
diff --git a/tests/data_files/dir4/cert63.crt b/tests/data_files/dir4/cert63.crt
new file mode 100644
index 0000000..ffa90e4
--- /dev/null
+++ b/tests/data_files/dir4/cert63.crt
@@ -0,0 +1,19 @@
+-----BEGIN CERTIFICATE-----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+-----END CERTIFICATE-----
diff --git a/tests/data_files/dir4/cert71.crt b/tests/data_files/dir4/cert71.crt
new file mode 100644
index 0000000..8c2af4c
--- /dev/null
+++ b/tests/data_files/dir4/cert71.crt
@@ -0,0 +1,18 @@
+-----BEGIN CERTIFICATE-----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==
+-----END CERTIFICATE-----
diff --git a/tests/data_files/dir4/cert72.crt b/tests/data_files/dir4/cert72.crt
new file mode 100644
index 0000000..5dcd65d
--- /dev/null
+++ b/tests/data_files/dir4/cert72.crt
@@ -0,0 +1,19 @@
+-----BEGIN CERTIFICATE-----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+-----END CERTIFICATE-----
diff --git a/tests/data_files/dir4/cert73.crt b/tests/data_files/dir4/cert73.crt
new file mode 100644
index 0000000..6854c74
--- /dev/null
+++ b/tests/data_files/dir4/cert73.crt
@@ -0,0 +1,19 @@
+-----BEGIN CERTIFICATE-----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+-----END CERTIFICATE-----
diff --git a/tests/data_files/dir4/cert74.crt b/tests/data_files/dir4/cert74.crt
new file mode 100644
index 0000000..920c4c2
--- /dev/null
+++ b/tests/data_files/dir4/cert74.crt
@@ -0,0 +1,19 @@
+-----BEGIN CERTIFICATE-----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+-----END CERTIFICATE-----
diff --git a/tests/suites/test_suite_x509parse.data b/tests/suites/test_suite_x509parse.data
index 3e7ea37..a540db2 100644
--- a/tests/suites/test_suite_x509parse.data
+++ b/tests/suites/test_suite_x509parse.data
@@ -1124,6 +1124,38 @@
depends_on:POLARSSL_SHA1_C:POLARSSL_RSA_C:POLARSSL_SHA256_C:POLARSSL_ECDSA_C:POLARSSL_ECP_DP_SECP384R1_ENABLED
x509_crt_parse_path:"data_files/dir3":1:2
+X509 CRT verify chain #1 (zero pathlen intermediate)
+depends_on:POLARSSL_SHA256_C:POLARSSL_RSA_C
+x509_crt_verify_chain:"data_files/dir4/cert14.crt data_files/dir4/cert13.crt data_files/dir4/cert12.crt":"data_files/dir4/cert11.crt":BADCERT_NOT_TRUSTED
+
+X509 CRT verify chain #2 (zero pathlen root)
+depends_on:POLARSSL_SHA256_C:POLARSSL_RSA_C
+x509_crt_verify_chain:"data_files/dir4/cert23.crt data_files/dir4/cert22.crt":"data_files/dir4/cert21.crt":BADCERT_NOT_TRUSTED
+
+X509 CRT verify chain #3 (nonzero pathlen root)
+depends_on:POLARSSL_SHA256_C:POLARSSL_RSA_C
+x509_crt_verify_chain:"data_files/dir4/cert34.crt data_files/dir4/cert33.crt data_files/dir4/cert32.crt":"data_files/dir4/cert31.crt":BADCERT_NOT_TRUSTED
+
+X509 CRT verify chain #4 (nonzero pathlen intermediate)
+depends_on:POLARSSL_SHA256_C:POLARSSL_RSA_C
+x509_crt_verify_chain:"data_files/dir4/cert45.crt data_files/dir4/cert44.crt data_files/dir4/cert43.crt data_files/dir4/cert42.crt":"data_files/dir4/cert41.crt":BADCERT_NOT_TRUSTED
+
+X509 CRT verify chain #5 (nonzero maxpathlen intermediate)
+depends_on:POLARSSL_SHA256_C:POLARSSL_RSA_C
+x509_crt_verify_chain:"data_files/dir4/cert54.crt data_files/dir4/cert53.crt data_files/dir4/cert52.crt":"data_files/dir4/cert51.crt":0
+
+X509 CRT verify chain #6 (nonzero maxpathlen root)
+depends_on:POLARSSL_SHA256_C:POLARSSL_RSA_C
+x509_crt_verify_chain:"data_files/dir4/cert63.crt data_files/dir4/cert62.crt":"data_files/dir4/cert61.crt":0
+
+X509 CRT verify chain #7 (maxpathlen root, self signed in path)
+depends_on:POLARSSL_SHA256_C:POLARSSL_RSA_C
+x509_crt_verify_chain:"data_files/dir4/cert74.crt data_files/dir4/cert73.crt data_files/dir4/cert72.crt":"data_files/dir4/cert71.crt":0
+
+X509 CRT verify chain #8 (self signed maxpathlen root)
+depends_on:POLARSSL_SHA256_C:POLARSSL_RSA_C
+x509_crt_verify_chain:"data_files/dir4/cert61.crt data_files/dir4/cert63.crt data_files/dir4/cert62.crt":"data_files/dir4/cert61.crt":0
+
X509 OID description #1
x509_oid_desc:"2B06010505070301":"TLS Web Server Authentication"
diff --git a/tests/suites/test_suite_x509parse.function b/tests/suites/test_suite_x509parse.function
index adaff51..18837c5 100644
--- a/tests/suites/test_suite_x509parse.function
+++ b/tests/suites/test_suite_x509parse.function
@@ -83,6 +83,36 @@
return( 0 );
}
#endif /* POLARSSL_X509_CRT_PARSE_C */
+
+/* strsep() not available on Windows */
+char *mystrsep(char **stringp, const char *delim)
+{
+ const char *p;
+ char *ret = *stringp;
+
+ if( *stringp == NULL )
+ return( NULL );
+
+ for( ; ; (*stringp)++ )
+ {
+ if( **stringp == '\0' )
+ {
+ *stringp = NULL;
+ goto done;
+ }
+
+ for( p = delim; *p != '\0'; p++ )
+ if( **stringp == *p )
+ {
+ **stringp = '\0';
+ (*stringp)++;
+ goto done;
+ }
+ }
+
+done:
+ return( ret );
+}
/* END_HEADER */
/* BEGIN_DEPENDENCIES
@@ -444,6 +474,34 @@
}
/* END_CASE */
+/* BEGIN_CASE depends_on:POLARSSL_FS_IO:POLARSSL_X509_CRT_PARSE_C */
+void x509_crt_verify_chain( char *chain_paths, char *trusted_ca, int flags_result )
+{
+ char* act;
+ int flags;
+ int result, res;
+ x509_crt trusted, chain;
+
+ result = flags_result ? POLARSSL_ERR_X509_CERT_VERIFY_FAILED : 0;
+
+ x509_crt_init( &chain );
+ x509_crt_init( &trusted );
+
+ while( ( act = mystrsep( &chain_paths, " " ) ) != NULL )
+ TEST_ASSERT( x509_crt_parse_file( &chain, act ) == 0 );
+ TEST_ASSERT( x509_crt_parse_file( &trusted, trusted_ca ) == 0 );
+
+ res = x509_crt_verify( &chain, &trusted, NULL, NULL, &flags, NULL, NULL );
+
+ TEST_ASSERT( res == result );
+ TEST_ASSERT( flags == flags_result );
+
+exit:
+ x509_crt_free( &trusted );
+ x509_crt_free( &chain );
+}
+/* END_CASE */
+
/* BEGIN_CASE depends_on:POLARSSL_X509_USE_C */
void x509_oid_desc( char *oid_str, char *ref_desc )
{