From 9a44a928ccebdceb5a4dd9a4d67168cc04d1227f Mon Sep 17 00:00:00 2001
From: Ian Moffett <ian@osmora.org>
Date: Sat, 28 Sep 2024 01:10:13 -0400
Subject: ostp.d: auth: Add user authentication

Signed-off-by: Ian Moffett <ian@osmora.org>
---
 lib/include/defs.h           |  4 ++++
 lib/include/net/stpsession.h | 13 +++++++++++++
 2 files changed, 17 insertions(+)

(limited to 'lib/include')

diff --git a/lib/include/defs.h b/lib/include/defs.h
index 1a022f9..e621e71 100644
--- a/lib/include/defs.h
+++ b/lib/include/defs.h
@@ -49,6 +49,10 @@
 #define PAP_BAD_PERMS   0x02    /* SPW provided needs more permissions */
 #define PAP_RESOURCE    0x03    /* Server has insufficient resources */
 
+/* Session auth code defs */
+#define AUTH_SUCCESS    0x00    /* Successful auth */
+#define AUTH_BAD_PW     0x01    /* Bad password */
+
 /* Fixed paths */
 #define OSMORA_TRUST "/etc/ostp/trusted_users.osmt"
 
diff --git a/lib/include/net/stpsession.h b/lib/include/net/stpsession.h
index 773d57b..aeed9cb 100644
--- a/lib/include/net/stpsession.h
+++ b/lib/include/net/stpsession.h
@@ -41,6 +41,9 @@
  */
 #define MESSAGE_SIZE (1 << 12)
 
+/* Session Request option bits */
+#define SESSION_REQ_USER BIT(0)
+
 /*
  * The Session Request is sent from the client to the
  * server and contains a HOP (hash, options, pubkey)
@@ -80,6 +83,16 @@ struct session_request {
     uint8_t pad[8];
 } PACKED;
 
+/*
+ * Structure containing user information
+ * for password protected channels.
+ */
+struct session_auth {
+    char username[256];
+    char password[64];
+    uint8_t code;
+};
+
 /*
  * OSTP Message Frame containing an IV, AES
  * GCM tag, payload length and payload
-- 
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