wip

4 files changed, 141 insertions, 1 deletions

diff --git a/cmd/srv9p/CMakeLists.txt b/cmd/srv9p/CMakeLists.txt
index 3db8795..8aadb28 100644
--- a/cmd/srv9p/CMakeLists.txt
+++ b/cmd/srv9p/CMakeLists.txt
@@ -5,6 +5,7 @@
 
 add_executable(srv9p
 	main.c
+	static.c
 )
 target_include_directories(srv9p PUBLIC ${CMAKE_CURRENT_SOURCE_DIR}/config)
 target_link_libraries(srv9p
diff --git a/cmd/srv9p/main.c b/cmd/srv9p/main.c
index 2c403df..f62617d 100644
--- a/cmd/srv9p/main.c
+++ b/cmd/srv9p/main.c
@@ -5,16 +5,44 @@
 #include <libnetio/netio.h>
 #include <lib9p/srv.h>
 
+#include "static.h"
+
 #define USE_CONFIG_COROUTINE
 #include "config.h"
 
+#define UNUSED(name) /* name __attribute__((unused)) */
+
+static struct static_dir_data root = {
+	.u_name = "root", .u_num = 0, /* owner user */
+	.g_name = "root", .g_num = 0, /* owner group */
+	.m_name = "root", .m_num = 0, /* last-modified-by user */
+
+	.pathnum = __COUNTER__,
+	.name    = "",
+	.perm    = 0555,
+	.atime   = 1728337904,
+	.mtime   = 1728337904,
+
+	.members = {
+		NULL,
+	},
+};
+
+struct lib9p_srv_file fs_root(struct lib9p_srv_ctx *UNUSED(ctx), char *UNUSED(treename)) {
+	return (struct lib9p_srv_file){
+		.vtable   = static_dir_vtable,
+		.impldata = &root,
+	};
+}
+
 int main() {
 	int sock = netio_listen(9000);
 	if (sock < 0)
 		error(1, -sock, "netio_listen");
 
 	struct lib9p_srv srv = {
-		.sockfd = sock,
+		.sockfd  = sock,
+		.rootdir = fs_root,
 	};
 
 	for (int i = 0; i < CONFIG_NETIO_NUM_CONNS; i++)
diff --git a/cmd/srv9p/static.c b/cmd/srv9p/static.c
new file mode 100644
index 0000000..f992764
--- /dev/null
+++ b/cmd/srv9p/static.c
@@ -0,0 +1,84 @@
+#include <assert.h>
+
+#include "static.h"
+
+#define UNUSED(name) /* name __attribute__((unused)) */
+
+static struct lib9p_srv_io static_dir_io(struct lib9p_srv_ctx *ctx, void *UNUSED(impl), lib9p_o_t UNUSED(flags)) {
+	struct lib9p_srv_io iohandle = {0};
+	lib9p_error(&ctx->basectx, LINUX_EFAULT, "TODO: io");
+	return iohandle;
+}
+
+#define p9_str(cstr)    ((struct lib9p_s){ .len = strlen(cstr), .utf8 = cstr })
+#define p9_nulstr       ((struct lib9p_s){ .len = 0, .utf8 = NULL })
+
+static struct lib9p_stat static_dir_stat(struct lib9p_srv_ctx *UNUSED(ctx), void *_data) {
+	struct static_dir_data *data = _data;
+	assert(data);
+
+	struct lib9p_stat stat = {
+		.kern_type                      = 0,
+		.kern_dev                       = 0,
+		.file_qid                       = {
+			.type = LIB9P_QT_DIR,
+			.vers = 1,
+			.path = data->pathnum,
+		},
+		.file_mode                = LIB9P_DM_DIR | (data->perm & 0555),
+		.file_atime               = data->atime,
+		.file_mtime               = data->mtime,
+		.file_size                = 0,
+		.file_name                = p9_str(data->name),
+		.file_owner_uid           = p9_str(data->u_name),
+		.file_owner_gid           = p9_str(data->g_name),
+		.file_last_modified_uid   = p9_str(data->m_name),
+		.file_extension           = p9_nulstr,
+		.file_owner_n_uid         = data->u_num,
+		.file_owner_n_gid         = data->g_num,
+		.file_last_modified_n_uid = data->m_num,
+	};
+	return stat;
+}
+
+static void static_dir_wstat(struct lib9p_srv_ctx *ctx, void *UNUSED(_data),
+                              struct lib9p_stat UNUSED(new)) {
+	lib9p_error(&ctx->basectx, LINUX_EROFS, "read-only part of filesystem");
+}
+
+static void static_dir_remove(struct lib9p_srv_ctx *ctx, void *UNUSED(_data)) {
+	lib9p_error(&ctx->basectx, LINUX_EROFS, "read-only part of filesystem");
+}
+
+static void static_dir_free(struct lib9p_srv_ctx *UNUSED(ctx), void *UNUSED(_data)) {}
+
+static struct lib9p_srv_file static_dir_dopen(struct lib9p_srv_ctx *ctx, void *UNUSED(_data),
+                                               char *UNUSED(childname)) {
+	struct lib9p_srv_file file= {0};
+	lib9p_error(&ctx->basectx, LINUX_EFAULT, "TODO: dopen");
+	return file;
+}
+
+static struct lib9p_srv_file static_dir_dcreate(struct lib9p_srv_ctx *ctx, void *UNUSED(_data),
+                                                 char *UNUSED(childname),
+                                                 lib9p_dm_t UNUSED(perm), lib9p_o_t UNUSED(flags)) {
+	struct lib9p_srv_file file = {0};
+	lib9p_error(&ctx->basectx, LINUX_EROFS, "read-only part of filesystem");
+	return file;
+}
+
+struct lib9p_srv_file_vtable static_dir_vtable = {
+	.io      = static_dir_io,
+	.stat    = static_dir_stat,
+	.wstat   = static_dir_wstat,
+	.remove  = static_dir_remove,
+	.free    = static_dir_free,
+	.dopen   = static_dir_dopen,
+	.dcreate = static_dir_dcreate,
+};
+
+/*
+  struct lib9p_srv_io_dir_vtable static_dir_io_vtable = {
+  .readdir = TODO,
+  };
+*/
diff --git a/cmd/srv9p/static.h b/cmd/srv9p/static.h
new file mode 100644
index 0000000..90bad4b
--- /dev/null
+++ b/cmd/srv9p/static.h
@@ -0,0 +1,27 @@
+#ifndef _STATIC_H_
+#define _STATIC_H_
+
+#include <lib9p/srv.h>
+
+struct static_dir_data {
+	char                    *u_name;
+	uint32_t                 u_num;
+	char                    *g_name;
+	uint32_t                 g_num;
+	char                    *m_name;
+	uint32_t                 m_num;
+
+	uint64_t                 pathnum;
+	char                    *name;
+	lib9p_dm_t               perm;
+	uint32_t                 atime, mtime;
+
+	/* NULL-terminated */
+	struct lib9p_srv_file   *members[];
+};
+
+extern struct lib9p_srv_file_vtable static_dir_vtable;
+
+//extern struct lib9p_srv_io_dir_vtable static_dir_io_vtable;
+
+#endif /* _STATIC_H_ */