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authorAndrew Bartlett <abartlet@samba.org>2004-11-17 12:27:16 +0000
committerGerald (Jerry) Carter <jerry@samba.org>2007-10-10 13:05:55 -0500
commit91e94014beb145541c051b4df28dde7ad0899da5 (patch)
treef625c437a537e99697fa28cd30b118123090d35c /source4/libcli
parent9aec081fd9f8fb46e7d97090f97a75ee5cbebde3 (diff)
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r3805: Fix the LSA portions of the RPC-SAMSYNC test - I was not using the LSA
secrets interface correctly. (New interface added). Andrew Bartlett (This used to be commit 994ac7f031e2b2d528595a4a0a446d92074d6ecf)
Diffstat (limited to 'source4/libcli')
-rw-r--r--source4/libcli/auth/session.c77
1 files changed, 77 insertions, 0 deletions
diff --git a/source4/libcli/auth/session.c b/source4/libcli/auth/session.c
index 598f2d4f28..fdb6462b00 100644
--- a/source4/libcli/auth/session.c
+++ b/source4/libcli/auth/session.c
@@ -131,3 +131,80 @@ char *sess_decrypt_string(DATA_BLOB *blob, const DATA_BLOB *session_key)
return ret;
}
+
+/*
+ a convenient wrapper around sess_crypt_blob() for DATA_BLOBs, using the LSA convention
+
+ note that we round the length to a multiple of 8. This seems to be needed for
+ compatibility with windows
+
+ caller should free using data_blob_free()
+*/
+DATA_BLOB sess_encrypt_blob(TALLOC_CTX *mem_ctx, DATA_BLOB *blob_in, const DATA_BLOB *session_key)
+{
+ DATA_BLOB ret, src;
+ int dlen = (blob_in->length+7) & ~7;
+
+ src = data_blob_talloc(mem_ctx, NULL, 8+dlen);
+ if (!src.data) {
+ return data_blob(NULL, 0);
+ }
+
+ ret = data_blob(NULL, 8+dlen);
+ if (!ret.data) {
+ data_blob_free(&src);
+ return data_blob(NULL, 0);
+ }
+
+ SIVAL(src.data, 0, blob_in->length);
+ SIVAL(src.data, 4, 1);
+ memset(src.data+8, 0, dlen);
+ memcpy(src.data+8, blob_in->data, blob_in->length);
+
+ sess_crypt_blob(&ret, &src, session_key, True);
+
+ data_blob_free(&src);
+
+ return ret;
+}
+
+/*
+ a convenient wrapper around sess_crypt_blob() for strings, using the LSA convention
+
+ caller should free the returned string
+*/
+DATA_BLOB sess_decrypt_blob(TALLOC_CTX *mem_ctx, DATA_BLOB *blob, const DATA_BLOB *session_key)
+{
+ DATA_BLOB out;
+ int slen;
+ DATA_BLOB ret;
+
+ if (blob->length < 8) {
+ return data_blob(NULL, 0);
+ }
+
+ out = data_blob_talloc(mem_ctx, NULL, blob->length);
+ if (!out.data) {
+ return data_blob(NULL, 0);
+ }
+
+ sess_crypt_blob(&out, blob, session_key, False);
+
+ slen = IVAL(out.data, 0);
+ if (slen > blob->length - 8) {
+ DEBUG(0,("Invalid crypt length %d\n", slen));
+ return data_blob(NULL, 0);
+ }
+
+ if (IVAL(out.data, 4) != 1) {
+ DEBUG(0,("Unexpected revision number %d in session crypted string\n",
+ IVAL(out.data, 4)));
+ return data_blob(NULL, 0);
+ }
+
+ ret = data_blob_talloc(mem_ctx, out.data+8, slen);
+
+ data_blob_free(&out);
+
+ return ret;
+}