* All rights reserved.
*/
-#ifndef _ATALK_DSI_H
+#ifndef _ATALK_DSI_H
#define _ATALK_DSI_H
-#include <sys/cdefs.h>
#include <sys/types.h>
#include <sys/time.h>
+#include <sys/socket.h>
#include <signal.h>
-
+#include <arpa/inet.h>
#include <netinet/in.h>
+
#include <atalk/afp.h>
#include <atalk/server_child.h>
-#include <netatalk/endian.h>
-
-#ifdef __OpenBSD__
-#include <sys/socket.h>
-#endif
+#include <atalk/globals.h>
/* What a DSI packet looks like:
- 0 32
- |-------------------------------|
- |flags |command| requestID |
- |-------------------------------|
- |error code/enclosed data offset|
- |-------------------------------|
- |total data length |
- |-------------------------------|
- |reserved field |
- |-------------------------------|
-
- CONVENTION: anything with a dsi_ prefix is kept in network byte order.
+ 0 32
+ |-------------------------------|
+ |flags |command| requestID |
+ |-------------------------------|
+ |error code/enclosed data offset|
+ |-------------------------------|
+ |total data length |
+ |-------------------------------|
+ |reserved field |
+ |-------------------------------|
+
+ CONVENTION: anything with a dsi_ prefix is kept in network byte order.
*/
-/* these need to be kept in sync w/ AFPTRANS_* in <atalk/afp.h>.
+/* these need to be kept in sync w/ AFPTRANS_* in <atalk/afp.h>.
* convention: AFPTRANS_* = (1 << DSI_*) */
typedef enum {
- DSI_MIN = 1,
- DSI_TCPIP = 1,
- DSI_MAX = 1
+ DSI_MIN = 1,
+ DSI_TCPIP = 1,
+ DSI_MAX = 1
} dsi_proto;
#define DSI_BLOCKSIZ 16
struct dsi_block {
- u_int8_t dsi_flags; /* packet type: request or reply */
- u_int8_t dsi_command; /* command */
- u_int16_t dsi_requestID; /* request ID */
- u_int32_t dsi_code; /* error code or data offset */
- u_int32_t dsi_len; /* total data length */
- u_int32_t dsi_reserved; /* reserved field */
+ uint8_t dsi_flags; /* packet type: request or reply */
+ uint8_t dsi_command; /* command */
+ uint16_t dsi_requestID; /* request ID */
+ union {
+ uint32_t dsi_code; /* error code */
+ uint32_t dsi_doff; /* data offset */
+ };
+ uint32_t dsi_len; /* total data length */
+ uint32_t dsi_reserved; /* reserved field */
};
-#define DSI_CMDSIZ 8192
#define DSI_DATASIZ 8192
+
/* child and parent processes might interpret a couple of these
* differently. */
typedef struct DSI {
- dsi_proto protocol;
- struct dsi_block header;
- struct sockaddr_storage server, client;
-
- struct itimerval timer;
-
- int in_write; /* in the middle of writing multiple packets, signal handlers
- * can't write to the socket
- */
- int msg_request; /* pending message to the client */
- int down_request; /* pending SIGUSR1 down in 5 mn */
-
- u_int32_t attn_quantum, datasize, server_quantum;
- u_int16_t serverID, clientID;
- char *status;
- u_int8_t commands[DSI_CMDSIZ], data[DSI_DATASIZ];
- size_t statuslen;
- size_t datalen, cmdlen;
- off_t read_count, write_count;
- int asleep; /* client won't reply AFP 0x7a ? */
- /* inited = initialized?, child = a child?, noreply = send reply? */
- char child, inited, noreply;
- const char *program;
- int socket, serversock;
-
- /* protocol specific open/close, send/receive
- * send/receive fill in the header and use dsi->commands.
- * write/read just write/read data */
- pid_t (*proto_open)(struct DSI *);
- void (*proto_close)(struct DSI *);
-
- /* url registered with slpd */
-#ifdef USE_SRVLOC
- char srvloc_url[512];
-#endif
+ struct DSI *next; /* multiple listening addresses */
+ AFPObj *AFPobj;
+ int statuslen;
+ char status[1400];
+ char *signature;
+ struct dsi_block header;
+ struct sockaddr_storage server, client;
+ struct itimerval timer;
+ int tickle; /* tickle count */
+ int in_write; /* in the middle of writing multiple packets,
+ signal handlers can't write to the socket */
+ int msg_request; /* pending message to the client */
+ int down_request; /* pending SIGUSR1 down in 5 mn */
+
+ uint32_t attn_quantum, datasize, server_quantum;
+ uint16_t serverID, clientID;
+ uint8_t *commands; /* DSI recieve buffer */
+ uint8_t data[DSI_DATASIZ]; /* DSI reply buffer */
+ size_t datalen, cmdlen;
+ off_t read_count, write_count;
+ uint32_t flags; /* DSI flags like DSI_SLEEPING, DSI_DISCONNECTED */
+ int socket; /* AFP session socket */
+ int serversock; /* listening socket */
+
+ /* DSI readahead buffer used for buffered reads in dsi_peek */
+ size_t dsireadbuf; /* size of the DSI readahead buffer used in dsi_peek() */
+ char *buffer; /* buffer start */
+ char *start; /* current buffer head */
+ char *eof; /* end of currently used buffer */
+ char *end;
#ifdef USE_ZEROCONF
- int zeroconf_registered;
+ char *bonjourname; /* server name as UTF8 maxlen MAXINSTANCENAMELEN */
+ int zeroconf_registered;
#endif
- /* buffer for OSX deadlock */
- char *buffer;
- char *start;
- char *eof;
- char *end;
- int maxsize;
-
+ /* protocol specific open/close, send/receive
+ * send/receive fill in the header and use dsi->commands.
+ * write/read just write/read data */
+ pid_t (*proto_open)(struct DSI *);
+ void (*proto_close)(struct DSI *);
} DSI;
-
+
/* DSI flags */
#define DSIFL_REQUEST 0x00
#define DSIFL_REPLY 0x01
/* DSI session options */
#define DSIOPT_SERVQUANT 0x00 /* server request quantum */
#define DSIOPT_ATTNQUANT 0x01 /* attention quantum */
+#define DSIOPT_REPLCSIZE 0x02 /* AFP replaycache size supported by the server (that's us) */
/* DSI Commands */
#define DSIFUNC_CLOSE 1 /* DSICloseSession */
#define DSIFUNC_MAX 8 /* largest command */
/* DSI Error codes: most of these aren't used. */
-#define DSIERR_OK 0x0000
-#define DSIERR_BADVERS 0xfbd6
-#define DSIERR_BUFSMALL 0xfbd5
-#define DSIERR_NOSESS 0xfbd4
-#define DSIERR_NOSERV 0xfbd3
-#define DSIERR_PARM 0xfbd2
-#define DSIERR_SERVBUSY 0xfbd1
-#define DSIERR_SESSCLOS 0xfbd0
-#define DSIERR_SIZERR 0xfbcf
-#define DSIERR_TOOMANY 0xfbce
-#define DSIERR_NOACK 0xfbcd
+#define DSIERR_OK 0x0000
+#define DSIERR_BADVERS 0xfbd6
+#define DSIERR_BUFSMALL 0xfbd5
+#define DSIERR_NOSESS 0xfbd4
+#define DSIERR_NOSERV 0xfbd3
+#define DSIERR_PARM 0xfbd2
+#define DSIERR_SERVBUSY 0xfbd1
+#define DSIERR_SESSCLOS 0xfbd0
+#define DSIERR_SIZERR 0xfbcf
+#define DSIERR_TOOMANY 0xfbce
+#define DSIERR_NOACK 0xfbcd
/* server and client quanta */
#define DSI_DEFQUANT 2 /* default attention quantum size */
/* default port number */
#define DSI_AFPOVERTCP_PORT 548
+/* DSI session State flags */
+#define DSI_DATA (1 << 0) /* we have received a DSI command */
+#define DSI_RUNNING (1 << 1) /* we have received a AFP command */
+#define DSI_SLEEPING (1 << 2) /* we're sleeping after FPZzz */
+#define DSI_EXTSLEEP (1 << 3) /* we're sleeping after FPZzz */
+#define DSI_DISCONNECTED (1 << 4) /* we're in diconnected state after a socket error */
+#define DSI_DIE (1 << 5) /* SIGUSR1, going down in 5 minutes */
+#define DSI_NOREPLY (1 << 6) /* in dsi_write we generate our own replies */
+#define DSI_RECONSOCKET (1 << 7) /* we have a new socket from primary reconnect */
+#define DSI_RECONINPROG (1 << 8) /* used in the new session in reconnect */
+#define DSI_AFP_LOGGED_OUT (1 << 9) /* client called afp_logout, quit on next EOF from socket */
+#if 0
+#define DSI_GOT_ECONNRESET (1 << 10) /* got ECONNRESET from client => exit */
+#endif
+
/* basic initialization: dsi_init.c */
-extern DSI *dsi_init (const dsi_proto /*protocol*/,
- const char * /*program*/,
- const char * /*host*/, const char * /*address*/,
- const char * /*port*/, const int /*proxy*/,
- const u_int32_t /* server quantum */);
+extern DSI *dsi_init(AFPObj *obj, const char *hostname, const char *address, const char *port);
extern void dsi_setstatus (DSI *, char *, const size_t);
+extern int dsi_tcp_init(DSI *dsi, const char *hostname, const char *address, const char *port);
/* in dsi_getsess.c */
-extern DSI *dsi_getsession (DSI *, server_child *, const int);
+extern int dsi_getsession (DSI *, server_child *, const int, afp_child_t **);
extern void dsi_kill (int);
extern int dsi_tickle (DSI *);
extern void dsi_getstatus (DSI *);
extern void dsi_close (DSI *);
-extern void dsi_sleep (DSI *, const int );
#define DSI_NOWAIT 1
+#define DSI_MSG_MORE 2
+
/* low-level stream commands -- in dsi_stream.c */
extern ssize_t dsi_stream_write (DSI *, void *, const size_t, const int mode);
extern size_t dsi_stream_read (DSI *, void *, const size_t);
extern int dsi_stream_send (DSI *, void *, size_t);
-extern int dsi_stream_receive (DSI *, void *, const size_t, size_t *);
+extern int dsi_stream_receive (DSI *);
+extern int dsi_disconnect(DSI *dsi);
#ifdef WITH_SENDFILE
-extern ssize_t dsi_stream_read_file(DSI *, int, off_t off, const size_t len);
+extern ssize_t dsi_stream_read_file(DSI *, int, off_t off, const size_t len, const int err);
#endif
/* client writes -- dsi_write.c */
/* client reads -- dsi_read.c */
extern ssize_t dsi_readinit (DSI *, void *, const size_t, const size_t,
- const int);
+ const int);
extern ssize_t dsi_read (DSI *, void *, const size_t);
extern void dsi_readdone (DSI *);
/* some useful macros */
#define dsi_serverID(x) ((x)->serverID++)
-#define dsi_send(x) do { \
- (x)->header.dsi_len = htonl((x)->cmdlen); \
- dsi_stream_send((x), (x)->commands, (x)->cmdlen); \
-} while (0)
-#define dsi_receive(x) (dsi_stream_receive((x), (x)->commands, \
- DSI_CMDSIZ, &(x)->cmdlen))
+#define dsi_send(x) do { \
+ (x)->header.dsi_len = htonl((x)->cmdlen); \
+ dsi_stream_send((x), (x)->commands, (x)->cmdlen); \
+ } while (0)
+
#endif /* atalk/dsi.h */
projects / netatalk.git / blobdiff