Record networking and DMA development progress

Add the current OS source tree, build scripts, system image layout, and development notes covering DMA page allocation, e1000 bring-up, net API dispatch, and DHCP work in progress.
2026-07-02 16:17:09 +08:00
parent fbc14631e3
commit f1a2a110d7
182 changed files with 16472 additions and 0 deletions
@@ -0,0 +1,26 @@
+#ifndef UTSM_CAPABILITY_H
+#define UTSM_CAPABILITY_H
+
+#include <utsm/types.h>
+#include <utsm/status.h>
+
+#define UTSM_RIGHT_READ  (1U << 0)
+#define UTSM_RIGHT_WRITE (1U << 1)
+#define UTSM_RIGHT_EXEC  (1U << 2)
+#define UTSM_RIGHT_SHARE (1U << 3)
+#define UTSM_RIGHT_DMA   (1U << 4)
+
+struct utsm_segment_desc;
+
+typedef struct {
+    u32 segment_slot;
+    u32 generation;
+    u32 rights;
+    u32 epoch;
+    u64 uuid_digest;
+    u64 auth_tag;
+} utsm_capability;
+
+int utsm_cap_validate(utsm_capability cap, u32 required_rights, u64 offset, u64 len, struct utsm_segment_desc **out_desc);
+
+#endif