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/*
* Copyright (C) the libgit2 contributors. All rights reserved.
*
* This file is part of libgit2, distributed under the GNU GPL v2 with
* a Linking Exception. For full terms see the included COPYING file.
*/
#include "git2.h"
#include "vector.h"
#include "netops.h"
#include "buffer.h"
#include "push.h"
#define GIT_SIDE_BAND_DATA 1
#define GIT_SIDE_BAND_PROGRESS 2
#define GIT_SIDE_BAND_ERROR 3
#define GIT_CAP_OFS_DELTA "ofs-delta"
#define GIT_CAP_MULTI_ACK "multi_ack"
#define GIT_CAP_MULTI_ACK_DETAILED "multi_ack_detailed"
#define GIT_CAP_SIDE_BAND "side-band"
#define GIT_CAP_SIDE_BAND_64K "side-band-64k"
#define GIT_CAP_INCLUDE_TAG "include-tag"
#define GIT_CAP_DELETE_REFS "delete-refs"
#define GIT_CAP_REPORT_STATUS "report-status"
#define GIT_CAP_THIN_PACK "thin-pack"
enum git_pkt_type {
GIT_PKT_CMD,
GIT_PKT_FLUSH,
GIT_PKT_REF,
GIT_PKT_HAVE,
GIT_PKT_ACK,
GIT_PKT_NAK,
GIT_PKT_PACK,
GIT_PKT_COMMENT,
GIT_PKT_ERR,
GIT_PKT_DATA,
GIT_PKT_PROGRESS,
GIT_PKT_OK,
GIT_PKT_NG,
GIT_PKT_UNPACK,
};
/* Used for multi_ack and mutli_ack_detailed */
enum git_ack_status {
GIT_ACK_NONE,
GIT_ACK_CONTINUE,
GIT_ACK_COMMON,
GIT_ACK_READY
};
/* This would be a flush pkt */
typedef struct {
enum git_pkt_type type;
} git_pkt;
struct git_pkt_cmd {
enum git_pkt_type type;
char *cmd;
char *path;
char *host;
};
/* This is a pkt-line with some info in it */
typedef struct {
enum git_pkt_type type;
git_remote_head head;
char *capabilities;
} git_pkt_ref;
/* Useful later */
typedef struct {
enum git_pkt_type type;
git_oid oid;
enum git_ack_status status;
} git_pkt_ack;
typedef struct {
enum git_pkt_type type;
char comment[GIT_FLEX_ARRAY];
} git_pkt_comment;
typedef struct {
enum git_pkt_type type;
int len;
char data[GIT_FLEX_ARRAY];
} git_pkt_data;
typedef git_pkt_data git_pkt_progress;
typedef struct {
enum git_pkt_type type;
int len;
char error[GIT_FLEX_ARRAY];
} git_pkt_err;
typedef struct {
enum git_pkt_type type;
char *ref;
} git_pkt_ok;
typedef struct {
enum git_pkt_type type;
char *ref;
char *msg;
} git_pkt_ng;
typedef struct {
enum git_pkt_type type;
int unpack_ok;
} git_pkt_unpack;
typedef struct transport_smart_caps {
int common:1,
ofs_delta:1,
multi_ack: 1,
multi_ack_detailed: 1,
side_band:1,
side_band_64k:1,
include_tag:1,
delete_refs:1,
report_status:1,
thin_pack:1;
} transport_smart_caps;
typedef int (*packetsize_cb)(size_t received, void *payload);
typedef struct {
git_transport parent;
git_remote *owner;
char *url;
git_cred_acquire_cb cred_acquire_cb;
void *cred_acquire_payload;
int direction;
int flags;
git_transport_message_cb progress_cb;
git_transport_message_cb error_cb;
void *message_cb_payload;
git_smart_subtransport *wrapped;
git_smart_subtransport_stream *current_stream;
transport_smart_caps caps;
git_vector refs;
git_vector heads;
git_vector common;
git_atomic cancelled;
packetsize_cb packetsize_cb;
void *packetsize_payload;
unsigned rpc : 1,
have_refs : 1,
connected : 1;
gitno_buffer buffer;
char buffer_data[65536];
} transport_smart;
/* smart_protocol.c */
int git_smart__store_refs(transport_smart *t, int flushes);
int git_smart__detect_caps(git_pkt_ref *pkt, transport_smart_caps *caps);
int git_smart__push(git_transport *transport, git_push *push);
int git_smart__negotiate_fetch(
git_transport *transport,
git_repository *repo,
const git_remote_head * const *refs,
size_t count);
int git_smart__download_pack(
git_transport *transport,
git_repository *repo,
git_transfer_progress *stats,
git_transfer_progress_callback progress_cb,
void *progress_payload);
/* smart.c */
int git_smart__negotiation_step(git_transport *transport, void *data, size_t len);
int git_smart__get_push_stream(transport_smart *t, git_smart_subtransport_stream **out);
int git_smart__update_heads(transport_smart *t);
/* smart_pkt.c */
int git_pkt_parse_line(git_pkt **head, const char *line, const char **out, size_t len);
int git_pkt_buffer_flush(git_buf *buf);
int git_pkt_send_flush(GIT_SOCKET s);
int git_pkt_buffer_done(git_buf *buf);
int git_pkt_buffer_wants(const git_remote_head * const *refs, size_t count, transport_smart_caps *caps, git_buf *buf);
int git_pkt_buffer_have(git_oid *oid, git_buf *buf);
void git_pkt_free(git_pkt *pkt);
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