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