DKIM: use Exim native memoory management

[exim.git] / src / src / pdkim / pdkim.h

diff --git a/src/src/pdkim/pdkim.h b/src/src/pdkim/pdkim.h
index 4a7498db917a88aeb95546dc1c61d02e20ef851f..079baef6f374b74a25509f737aeb3594fb98a995 100644 (file)
--- a/src/src/pdkim/pdkim.h
+++ b/src/src/pdkim/pdkim.h
@@ -2,6 +2,7 @@
  *  PDKIM - a RFC4871 (DKIM) implementation
  *
  *  Copyright (C) 2009 - 2012  Tom Kistner <tom@duncanthrax.net>
+ *  Copyright (c) Jeremy Harris 2016
  *
  *  http://duncanthrax.net/pdkim/
  *
@@ -19,6 +20,11 @@
  *  with this program; if not, write to the Free Software Foundation, Inc.,
  *  51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
  */
+#ifndef PDKIM_H
+#define PDKIM_H
+
+#include "blob.h"
+#include "hash.h"
 
 /* -------------------------------------------------------------------------- */
 /* Length of the preallocated buffer for the "answer" from the dns/txt
@@ -29,11 +35,12 @@
 /* Function success / error codes */
 #define PDKIM_OK                      0
 #define PDKIM_FAIL                   -1
-#define PDKIM_ERR_OOM              -100
 #define PDKIM_ERR_RSA_PRIVKEY      -101
 #define PDKIM_ERR_RSA_SIGNING      -102
 #define PDKIM_ERR_LONG_LINE        -103
 #define PDKIM_ERR_BUFFER_TOO_SMALL -104
+#define PDKIM_SIGN_PRIVKEY_WRAP    -105
+#define PDKIM_SIGN_PRIVKEY_B64D    -106
 
 /* -------------------------------------------------------------------------- */
 /* Main/Extended verification status */
@@ -46,7 +53,8 @@
 #define PDKIM_VERIFY_FAIL_MESSAGE               2
 #define PDKIM_VERIFY_INVALID_PUBKEY_UNAVAILABLE 3
 #define PDKIM_VERIFY_INVALID_BUFFER_SIZE        4
-#define PDKIM_VERIFY_INVALID_PUBKEY_PARSING     5
+#define PDKIM_VERIFY_INVALID_PUBKEY_DNSRECORD   5
+#define PDKIM_VERIFY_INVALID_PUBKEY_IMPORT      6
 
 /* -------------------------------------------------------------------------- */
 /* Some parameter values */
@@ -95,8 +103,7 @@ typedef struct pdkim_pubkey {
   char *srvtype;                  /* s=  */
   char *notes;                    /* n=  */
 
-  char *key;                      /* p=  */
-  int   key_len;
+  blob  key;                      /* p=  */
 
   int   testing;                  /* t=y */
   int   no_subdomaining;          /* t=s */
@@ -148,18 +155,16 @@ typedef struct pdkim_signature {
 
   /* (h=) Colon-separated list of header names that are included in the
      signature */
-  char *headernames;
+  uschar *headernames;
 
   /* (z=) */
   char *copiedheaders;
 
   /* (b=) Raw signature data, along with its length in bytes */
-  char *sigdata;
-  int   sigdata_len;
+  blob sigdata;
 
   /* (bh=) Raw body hash data, along with its length in bytes */
-  char *bodyhash;
-  int   bodyhash_len;
+  blob bodyhash;
 
   /* Folded DKIM-Signature: header. Singing only, NULL for verifying.
      Ready for insertion into the message. Note: Folded using CRLFTB,
@@ -225,14 +230,14 @@ typedef struct pdkim_signature {
   /* Properties below this point are used internally only ------------- */
 
   /* Per-signature helper variables ----------------------------------- */
-  sha1_context *sha1_body; /* SHA1 block                                */
-  sha2_context *sha2_body; /* SHA256 block                              */
+  hctx         body_hash;
+
   unsigned long signed_body_bytes; /* How many body bytes we hashed     */
   pdkim_stringlist *headers; /* Raw headers included in the sig         */
   /* Signing specific ------------------------------------------------- */
-  char *rsa_privkey;     /* Private RSA key                             */
-  char *sign_headers;    /* To-be-signed header names                   */
-  char *rawsig_no_b_val; /* Original signature header w/o b= tag value. */
+  uschar * rsa_privkey;     /* Private RSA key                             */
+  uschar * sign_headers;    /* To-be-signed header names                   */
+  uschar * rawsig_no_b_val; /* Original signature header w/o b= tag value. */
 } pdkim_signature;
 
 
@@ -252,7 +257,9 @@ typedef struct pdkim_ctx {
   int(*dns_txt_callback)(char *, char *);
 
   /* Coder's little helpers */
-  pdkim_str *cur_header;
+  uschar    *cur_header;
+  int        cur_header_size;
+  int        cur_header_len;
   char      *linebuf;
   int        linebuf_offset;
   BOOL       seen_lf;
@@ -273,15 +280,17 @@ typedef struct pdkim_ctx {
 extern "C" {
 #endif
 
+void      pdkim_init         (void);
+
 DLLEXPORT
-pdkim_ctx *pdkim_init_sign    (char *, char *, char *);
+pdkim_ctx *pdkim_init_sign    (char *, char *, char *, int);
 
 DLLEXPORT
 pdkim_ctx *pdkim_init_verify  (int(*)(char *, char *));
 
 DLLEXPORT
 int        pdkim_set_optional (pdkim_ctx *, char *, char *,int, int,
-                               long, int,
+                               long,
                                unsigned long,
                                unsigned long);
 
@@ -296,3 +305,5 @@ void       pdkim_free_ctx     (pdkim_ctx *);
 #ifdef __cplusplus
 }
 #endif
+
+#endif