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kernel: re-implement sending handles via port messages

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This commit is contained in:
max 🍓
2026-03-01 19:10:01 +00:00
parent b1bdb89ca4
commit 36c5ac7837
23 changed files with 399 additions and 168 deletions
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13
libmango/include-user/mango/log.h
View File

@@ -2,6 +2,7 @@
#define MANGO_LOG_H_
#include <mango/status.h>
#include <mango/types.h>
#undef TRACE
@@ -9,18 +10,18 @@ extern kern_status_t kern_log(const char *s);
#define kern_logf(...) \
do { \
char s[128]; \
snprintf(s, sizeof s, __VA_ARGS__); \
kern_log(s); \
char __logbuf[128]; \
snprintf(__logbuf, sizeof __logbuf, __VA_ARGS__); \
kern_log(__logbuf); \
} while (0)
#ifdef TRACE
#define kern_trace(...) kern_log(__VA_ARGS__)
#define kern_tracef(...) \
do { \
char s[128]; \
snprintf(s, sizeof s, __VA_ARGS__); \
kern_log(s); \
char __logbuf[128]; \
snprintf(__logbuf, sizeof __logbuf, __VA_ARGS__); \
kern_log(__logbuf); \
} while (0)
#else
#define kern_trace(...)

19
libmango/include-user/mango/msg.h
View File

@@ -14,28 +14,21 @@ extern kern_status_t port_disconnect(kern_handle_t port);
extern kern_status_t msg_send(
kern_handle_t port,
const struct iovec *req_data,
size_t req_data_count,
struct iovec *resp_data,
size_t resp_data_count);
const kern_msg_t *msg,
kern_msg_t *out_response);
extern kern_status_t msg_recv(
kern_handle_t channel,
msgid_t *out_id,
struct iovec *out_data,
size_t out_data_count);
extern kern_status_t msg_recv(kern_handle_t channel, kern_msg_t *out);
extern kern_status_t msg_reply(
kern_handle_t channel,
msgid_t id,
const struct iovec *reply_data,
size_t reply_data_count);
const kern_msg_t *response);
extern kern_status_t msg_read(
kern_handle_t channel,
msgid_t id,
size_t offset,
struct iovec *out,
kern_iovec_t *out,
size_t out_count,
size_t *nr_read);
@@ -43,7 +36,7 @@ extern kern_status_t msg_write(
kern_handle_t channel,
msgid_t id,
size_t offset,
const struct iovec *in,
const kern_iovec_t *in,
size_t nr_in,
size_t *nr_written);

2
libmango/include/mango/status.h
View File

@@ -1,8 +1,6 @@
#ifndef MANGO_STATUS_H_
#define MANGO_STATUS_H_
typedef unsigned int kern_status_t;
#define KERN_OK (0)
#define KERN_UNIMPLEMENTED (1)
#define KERN_NAME_EXISTS (2)

54
libmango/include/mango/types.h
View File

@@ -4,29 +4,24 @@
#include <stddef.h>
#include <stdint.h>
#define VM_PROT_READ 0x01u
#define VM_PROT_WRITE 0x02u
#define VM_PROT_EXEC 0x04u
#define VM_PROT_USER 0x08u
#define VM_PROT_SVR 0x10u
#define VM_PROT_NOCACHE 0x10u
#define VM_PROT_MAP_SPECIFIC 0x40u
#define VM_PROT_READ 0x01u
#define VM_PROT_WRITE 0x02u
#define VM_PROT_EXEC 0x04u
#define VM_PROT_USER 0x08u
#define VM_PROT_SVR 0x10u
#define VM_PROT_NOCACHE 0x10u
#define VM_PROT_MAP_SPECIFIC 0x40u
/* if this flag is set, other tasks can connect to this channel using
* the port_connect_* syscalls.
* if this flag is NOT set, only threads in the task that owns the channel
* can create ports connecting to it. */
#define CHANNEL_F_ALLOW_DIRECT_CONNECTIONS 0x01u
#define VM_REGION_ANY_OFFSET ((off_t) - 1)
#define KERN_HANDLE_INVALID ((kern_handle_t)0xFFFFFFFF)
/* msg_reply: once the reply has been sent, disconnect the port that sent the
* original message */
#define MSG_F_DISCONNECT_AFTER_REPLY 0x01u
#define KERN_CFG_INVALID 0x00u
#define KERN_CFG_PAGE_SIZE 0x01u
#define VM_REGION_ANY_OFFSET ((off_t) - 1)
#define KERN_HANDLE_INVALID ((kern_handle_t)0xFFFFFFFF)
#define KERN_CFG_INVALID 0x00u
#define KERN_CFG_PAGE_SIZE 0x01u
#define KERN_MSG_MAX_HANDLES 64
#define KERN_MSG_HANDLE_IGNORE 0
#define KERN_MSG_HANDLE_MOVE 1
#define KERN_MSG_HANDLE_COPY 2
#define IOVEC(p, len) \
{ \
@@ -47,15 +42,30 @@ typedef uint64_t msgid_t;
typedef uint64_t off_t;
typedef uint64_t koid_t;
typedef unsigned int tid_t;
typedef unsigned int kern_status_t;
typedef uint32_t kern_handle_t;
typedef uint32_t kern_config_key_t;
typedef uint32_t vm_prot_t;
typedef unsigned int umode_t;
struct iovec {
typedef struct {
virt_addr_t io_base;
size_t io_len;
};
} kern_iovec_t;
typedef struct {
unsigned int hnd_mode;
kern_handle_t hnd_value;
kern_status_t hnd_result;
} kern_msg_handle_t;
typedef struct {
msgid_t msg_id;
kern_iovec_t *msg_data;
size_t msg_data_count;
kern_msg_handle_t *msg_handles;
size_t msg_handles_count;
} kern_msg_t;
#endif