diff options
Diffstat (limited to 'wgtpkg-xmlsec.c')
| -rw-r--r-- | wgtpkg-xmlsec.c | 18 |
1 files changed, 15 insertions, 3 deletions
diff --git a/wgtpkg-xmlsec.c b/wgtpkg-xmlsec.c index b2c2e50..843ea2b 100644 --- a/wgtpkg-xmlsec.c +++ b/wgtpkg-xmlsec.c @@ -42,12 +42,14 @@ static xmlSecKeysMngrPtr keymgr; #define CA_ROOT_DIRECTORY "./ca-certificates" #endif +/* checks if a file match uri (should not be a distributor signature) */ static int file_match_cb(const char *uri) { struct filedesc *fdesc = file_of_name(uri); return fdesc != NULL && fdesc->type == type_file && (fdesc->flags & flag_distributor_signature) == 0; } +/* open the file of uri */ static void *file_open_cb(const char *file) { struct filedesc *fdesc; @@ -68,22 +70,26 @@ static void *file_open_cb(const char *file) return f; } +/* read the opened file */ static int file_read_cb(void *context, char *buffer, int len) { size_t r = fread(buffer, 1, len, (FILE*)context); return r ? (int)r : feof((FILE*)context) ? 0 : - 1; } +/* close the opened file */ static int file_close_cb(void *context) { return (int)fclose((FILE*)context); } +/* echo an error message */ static void errors_cb(const char *file, int line, const char *func, const char *errorObject, const char *errorSubject, int reason, const char *msg) { syslog(LOG_ERR, "xmlSec error %3d: %s (subject=\"%s\", object=\"%s\")", reason, msg, errorSubject ? errorSubject : "?", errorObject ? errorObject : "?"); } +/* fills database with trusted keys */ static int fill_trusted_keys() { int err; @@ -118,6 +124,7 @@ static int fill_trusted_keys() } +/* initialisation of access to xmlsec */ int xmlsec_init() { @@ -175,7 +182,7 @@ end: return initstatus; } - +/* shuting down accesses to xmlsec */ void xmlsec_shutdown() { xmlSecKeysMngrDestroy(keymgr); @@ -187,6 +194,7 @@ void xmlsec_shutdown() xmlSecShutdown(); } +/* verify a signature */ int xmlsec_verify(xmlNodePtr node) { int rc; @@ -212,9 +220,10 @@ int xmlsec_verify(xmlNodePtr node) return rc; } +/* templates for properties of signature files */ static const struct { const char *id; const char *xml; } properties[2] = { { - .id = "AuthorSignature", + .id = "AuthorSignature", /* template of properties for author signature */ .xml = "<SignatureProperties xmlns:dsp=\"http://www.w3.org/2009/xmldsig-properties\">" "<SignatureProperty Id=\"profile\" Target=\"#AuthorSignature\">" @@ -229,7 +238,7 @@ static const struct { const char *id; const char *xml; } properties[2] = { "</SignatureProperties>" }, { - .id = "DistributorSignature", + .id = "DistributorSignature", /* template of properties for distributor signature */ .xml = "<SignatureProperties xmlns:dsp=\"http://www.w3.org/2009/xmldsig-properties\">" "<SignatureProperty Id=\"profile\" Target=\"#DistributorSignature\">" @@ -245,6 +254,9 @@ static const struct { const char *id; const char *xml; } properties[2] = { } }; +/* create a signature of 'index' (0 for author, other values for distributors) +using the private 'key' (filename) and the certificates 'certs' (filenames) +as trusted chain */ xmlDocPtr xmlsec_create(int index, const char *key, const char **certs) { unsigned int i, fc, mask; |