From ab5150478dd14c1c5b28ca50b36b35e8224df54b Mon Sep 17 00:00:00 2001
From: dzwdz
Date: Wed, 25 Aug 2021 14:28:53 +0200
Subject: implement vfs_mount_seed, which creates the vfs passed to init

---
 src/kernel/proc.c      |  3 ++-
 src/kernel/vfs/mount.c | 15 +++++++++++++++
 src/kernel/vfs/mount.h |  3 +++
 3 files changed, 20 insertions(+), 1 deletion(-)
 create mode 100644 src/kernel/vfs/mount.c

(limited to 'src/kernel')

diff --git a/src/kernel/proc.c b/src/kernel/proc.c
index c7963f0..022de79 100644
--- a/src/kernel/proc.c
+++ b/src/kernel/proc.c
@@ -3,6 +3,7 @@
 #include <kernel/panic.h>
 #include <kernel/proc.h>
 #include <kernel/util.h>
+#include <kernel/vfs/mount.h>
 #include <shared/magic.h>
 #include <stdint.h>
 
@@ -17,7 +18,7 @@ struct process *process_seed(void) {
 	proc->sibling = NULL;
 	proc->child   = NULL;
 	proc->parent  = NULL;
-	proc->mount   = NULL;
+	proc->mount   = vfs_mount_seed();
 	proc->id      = next_pid++;
 
 	process_first = proc;
diff --git a/src/kernel/vfs/mount.c b/src/kernel/vfs/mount.c
new file mode 100644
index 0000000..be33b6b
--- /dev/null
+++ b/src/kernel/vfs/mount.c
@@ -0,0 +1,15 @@
+#include <kernel/mem.h>
+#include <kernel/vfs/mount.h>
+
+struct vfs_mount *vfs_mount_seed(void) {
+	struct vfs_mount *mount = kmalloc(sizeof(struct vfs_mount));
+	*mount = (struct vfs_mount){
+		.prev = NULL,
+		.prefix = "/tty",
+		.prefix_len = 4,
+		.fd = {
+			.type = FD_SPECIAL_TTY,
+		},
+	};
+	return mount;
+}
diff --git a/src/kernel/vfs/mount.h b/src/kernel/vfs/mount.h
index 3e9d8ae..982f951 100644
--- a/src/kernel/vfs/mount.h
+++ b/src/kernel/vfs/mount.h
@@ -7,3 +7,6 @@ struct vfs_mount {
 	size_t prefix_len;
 	struct fd fd;
 };
+
+// prepares init's filesystem view
+struct vfs_mount *vfs_mount_seed(void);
-- 
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