lib9p: Mark what I intend to complete

5 files changed, 45 insertions, 17 deletions

diff --git a/lib9p/9p.c b/lib9p/9p.c
index 832ae82..a008ccc 100644
--- a/lib9p/9p.c
+++ b/lib9p/9p.c
@@ -18,7 +18,13 @@ int lib9p_error(struct lib9p_ctx *ctx, uint32_t linux_errno, char const *msg) {
 		return -1;
 	strncpy(ctx->err_msg, msg, sizeof(ctx->err_msg));
 	ctx->err_msg[sizeof(ctx->err_msg)-1] = '\0';
+
+#ifdef CONFIG_9P_ENABLE_9P2000_u
 	ctx->err_num = linux_errno;
+#else
+	(void)(linux_errno);
+#endif
+
 	return -1;
 }
 
@@ -34,7 +40,11 @@ int lib9p_errorf(struct lib9p_ctx *ctx, uint32_t linux_errno, char const *fmt, .
 	if ((size_t)(n+1) < sizeof(ctx->err_msg))
 		memset(&ctx->err_msg[n+1], 0, sizeof(ctx->err_msg)-(n+1));
 
+#ifdef CONFIG_9P_ENABLE_9P2000_u
 	ctx->err_num = linux_errno;
+#else
+	(void)(linux_errno);
+#endif
 
 	return -1;
 }
diff --git a/lib9p/9p.generated.c b/lib9p/9p.generated.c
index 660c925..50ed53f 100644
--- a/lib9p/9p.generated.c
+++ b/lib9p/9p.generated.c
@@ -2040,6 +2040,7 @@ static FLATTEN bool marshal_Rswrite(struct _marshal_ctx *ctx, struct lib9p_msg_R
 	    || ({ encode_u8le(155, &ctx->net_bytes[_typ_offset]); false; })
 	    ;
 }
+#endif /* defined(CONFIG_9P_ENABLE_9P2000_e) */
 
 /* vtables / exports **********************************************************/
 
@@ -2056,7 +2057,6 @@ struct _vtable_version _lib9p_vtables[LIB9P_VER_NUM] = {
 		_MSG(Rversion),
 		_MSG(Rerror),
 	}},
-#endif /* defined(CONFIG_9P_ENABLE_9P2000_e) */
 #if defined(CONFIG_9P_ENABLE_9P2000)
 	[LIB9P_VER_9P2000] = { .msgs = {
 		_MSG(Tversion),
diff --git a/lib9p/idl.gen b/lib9p/idl.gen
index c0a2444..e911ed7 100755
--- a/lib9p/idl.gen
+++ b/lib9p/idl.gen
@@ -1091,6 +1091,7 @@ static ALWAYS_INLINE bool marshal_8(struct _marshal_ctx *ctx, uint64_t *val) {
                 ret += ifdef_pop(1)
                 ret += "\t    ;\n"
         ret += "}\n"
+    ret += ifdef_pop(0)
 
     # vtables / exports ########################################################
     ret += f"""
diff --git a/lib9p/include/lib9p/9p.h b/lib9p/include/lib9p/9p.h
index 1e1667d..2511e3d 100644
--- a/lib9p/include/lib9p/9p.h
+++ b/lib9p/include/lib9p/9p.h
@@ -37,19 +37,23 @@ struct lib9p_ctx {
 	uint32_t                max_msg_size;
 
 	/* state */
+#ifdef CONFIG_9P_ENABLE_9P2000_u
 	uint32_t                err_num;
+#endif
 	char                    err_msg[CONFIG_9P_MAX_ERR_SIZE];
 };
 
 static void lib9p_ctx_clear_error(struct lib9p_ctx *ctx) {
 	assert(ctx);
+#ifdef CONFIG_9P_ENABLE_9P2000_u
 	ctx->err_num = 0;
+#endif
 	ctx->err_msg[0] = '\0';
 }
 
 static bool lib9p_ctx_has_error(struct lib9p_ctx *ctx) {
 	assert(ctx);
-	return ctx->err_num || ctx->err_msg[0];
+	return ctx->err_msg[0];
 }
 
 /** Write an static error into ctx, return -1.  */
diff --git a/lib9p/srv.c b/lib9p/srv.c
index 04cd119..74aa158 100644
--- a/lib9p/srv.c
+++ b/lib9p/srv.c
@@ -99,7 +99,9 @@ static uint32_t rerror_overhead_for_version(enum lib9p_version version,
 }
 
 static void respond_error(struct _lib9p_srv_req *req) {
+#ifdef CONFIG_9P_ENABLE_9P2000_u
 	assert(req->ctx.basectx.err_num);
+#endif
 	assert(req->ctx.basectx.err_msg[0]);
 
 	ssize_t r;
@@ -110,7 +112,9 @@ static void respond_error(struct _lib9p_srv_req *req) {
 			               CONFIG_9P_MAX_ERR_SIZE),
 			.utf8 = req->ctx.basectx.err_msg,
 		},
+#ifdef CONFIG_9P_ENABLE_9P2000_u
 		.errno = req->ctx.basectx.err_num,
+#endif
 	};
 
 	struct _srv_sess *sess = req->parent_sess;
@@ -298,9 +302,11 @@ _HANDLER_PROTO(clunk);
 _HANDLER_PROTO(remove);
 _HANDLER_PROTO(stat);
 _HANDLER_PROTO(wstat);
-_HANDLER_PROTO(session); /* 9P2000.e */
-_HANDLER_PROTO(sread);   /* 9P2000.e */
-_HANDLER_PROTO(swrite);  /* 9P2000.e */
+#ifdef CONFIG_9P_ENABLE_9P2000_e
+_HANDLER_PROTO(session);
+_HANDLER_PROTO(sread);
+_HANDLER_PROTO(swrite);
+#endif
 
 typedef void (*tmessage_handler)(struct _lib9p_srv_req *, void *, void *);
 
@@ -318,9 +324,11 @@ static tmessage_handler tmessage_handlers[0x100] = {
 	[LIB9P_TYP_Tremove]  = (tmessage_handler)handle_Tremove,
 	[LIB9P_TYP_Tstat]    = (tmessage_handler)handle_Tstat,
 	[LIB9P_TYP_Twstat]   = (tmessage_handler)handle_Twstat,
-	[LIB9P_TYP_Tsession] = (tmessage_handler)handle_Tsession, /* 9P2000.e */
-	[LIB9P_TYP_Tsread]   = (tmessage_handler)handle_Tsread,   /* 9P2000.e */
-	[LIB9P_TYP_Tswrite]  = (tmessage_handler)handle_Tswrite,  /* 9P2000.e */
+#ifdef CONFIG_9P_ENABLE_9P2000_e
+	[LIB9P_TYP_Tsession] = (tmessage_handler)handle_Tsession,
+	[LIB9P_TYP_Tsread]   = (tmessage_handler)handle_Tsread,
+	[LIB9P_TYP_Tswrite]  = (tmessage_handler)handle_Tswrite,
+#endif
 };
 
 static void handle_message(struct _lib9p_srv_req *ctx) {
@@ -409,12 +417,15 @@ static void handle_Tversion(struct _lib9p_srv_req *ctx,
 	    '0' <= req->version.utf8[4] && req->version.utf8[4] <= '9' &&
 	    '0' <= req->version.utf8[5] && req->version.utf8[5] <= '9' &&
 	    (req->version.utf8[6] == '\0' || req->version.utf8[6] == '.')) {
+		version = LIB9P_VER_9P2000;
+#ifdef CONFIG_9P_ENABLE_9P2000_u
 		if (strcmp((char *)&req->version.utf8[6], ".u") == 0)
 			version = LIB9P_VER_9P2000_u;
-		else if (strcmp((char *)&req->version.utf8[6], ".e") == 0)
+#endif
+#ifdef CONFIG_9P_ENABLE_9P2000_e
+		if (strcmp((char *)&req->version.utf8[6], ".e") == 0)
 			version = LIB9P_VER_9P2000_e;
-		else
-			version = LIB9P_VER_9P2000;
+#endif
 	}
 
 	uint32_t min_msg_size = rerror_overhead_for_version(version, ctx->net_bytes);
@@ -741,7 +752,7 @@ static void handle_Tcreate(struct _lib9p_srv_req *ctx,
 	handler_common(ctx, req, resp);
 
 	lib9p_error(&ctx->ctx.basectx,
-	            LINUX_EOPNOTSUPP, "create not yet implemented");
+	            LINUX_EOPNOTSUPP, "create not (yet?) implemented");
 }
 
 static void handle_Tread(struct _lib9p_srv_req *ctx,
@@ -826,7 +837,7 @@ static void handle_Tremove(struct _lib9p_srv_req *ctx,
 	handler_common(ctx, req, resp);
 
 	lib9p_error(&ctx->ctx.basectx,
-	            LINUX_EOPNOTSUPP, "remove not yet implemented");
+	            LINUX_EOPNOTSUPP, "remove not (yet?) implemented");
 }
 
 static void handle_Tstat(struct _lib9p_srv_req *ctx,
@@ -850,16 +861,17 @@ static void handle_Twstat(struct _lib9p_srv_req *ctx,
 	handler_common(ctx, req, resp);
 
 	lib9p_error(&ctx->ctx.basectx,
-	            LINUX_EOPNOTSUPP, "wstat not yet implemented");
+	            LINUX_EOPNOTSUPP, "wstat not (yet?) implemented");
 }
 
+#ifdef CONFIG_9P_ENABLE_9P2000_e
 static void handle_Tsession(struct _lib9p_srv_req *ctx,
                             struct lib9p_msg_Tsession *req,
                             struct lib9p_msg_Rsession *resp) {
 	handler_common(ctx, req, resp);
 
 	lib9p_error(&ctx->ctx.basectx,
-	            LINUX_EOPNOTSUPP, "session not yet implemented");
+	            LINUX_EOPNOTSUPP, "session not (yet?) implemented");
 }
 
 static void handle_Tsread(struct _lib9p_srv_req *ctx,
@@ -868,7 +880,7 @@ static void handle_Tsread(struct _lib9p_srv_req *ctx,
 	handler_common(ctx, req, resp);
 
 	lib9p_error(&ctx->ctx.basectx,
-	            LINUX_EOPNOTSUPP, "sread not yet implemented");
+	            LINUX_EOPNOTSUPP, "sread not (yet?) implemented");
 }
 
 static void handle_Tswrite(struct _lib9p_srv_req *ctx,
@@ -877,5 +889,6 @@ static void handle_Tswrite(struct _lib9p_srv_req *ctx,
 	handler_common(ctx, req, resp);
 
 	lib9p_error(&ctx->ctx.basectx,
-	            LINUX_EOPNOTSUPP, "swrite not yet implemented");
+	            LINUX_EOPNOTSUPP, "swrite not (yet?) implemented");
 }
+#endif