extern char *filesfrom_host;
extern const char *checksum_choice;
extern const char *compress_choice;
+extern char *daemon_auth_choices;
extern filter_rule_list filter_list;
extern int need_unsorted_flist;
#ifdef ICONV_OPTION
extern iconv_t ic_send, ic_recv;
extern char *iconv_opt;
#endif
-extern struct name_num_obj valid_checksums;
+extern struct name_num_obj valid_checksums, valid_auth_checksums;
+
+extern struct name_num_item *xfer_sum_nni;
int remote_protocol = 0;
int file_extra_cnt = 0; /* count of file-list extras that everyone gets */
int do_negotiated_strings = 0;
int xmit_id0_names = 0;
+struct name_num_item *xattr_sum_nni;
+int xattr_sum_len = 0;
+
/* These index values are for the file-list's extra-attribute array. */
int pathname_ndx, depth_ndx, atimes_ndx, crtimes_ndx, uid_ndx, gid_ndx, acls_ndx, xattrs_ndx, unsort_ndx;
#define MAX_NSTR_STRLEN 256
-struct name_num_obj valid_compressions = {
- "compress", NULL, NULL, 0, 0, {
+struct name_num_item valid_compressions_items[] = {
#ifdef SUPPORT_ZSTD
- { CPRES_ZSTD, "zstd", NULL },
+ { CPRES_ZSTD, 0, "zstd", NULL },
#endif
#ifdef SUPPORT_LZ4
- { CPRES_LZ4, "lz4", NULL },
+ { CPRES_LZ4, 0, "lz4", NULL },
#endif
- { CPRES_ZLIBX, "zlibx", NULL },
- { CPRES_ZLIB, "zlib", NULL },
- { CPRES_NONE, "none", NULL },
- { 0, NULL, NULL }
- }
+ { CPRES_ZLIBX, 0, "zlibx", NULL },
+ { CPRES_ZLIB, 0, "zlib", NULL },
+ { CPRES_NONE, 0, "none", NULL },
+ { 0, 0, NULL, NULL }
+};
+
+struct name_num_obj valid_compressions = {
+ "compress", NULL, 0, 0, valid_compressions_items
};
#define CF_INC_RECURSE (1<<0)
{
char *dot;
int their_protocol, their_sub;
-#if SUBPROTOCOL_VERSION != 0
- int our_sub = protocol_version < PROTOCOL_VERSION ? 0 : SUBPROTOCOL_VERSION;
-#else
- int our_sub = 0;
-#endif
+ int our_sub = get_subprotocol_version();
/* client_info starts with VER.SUB string if client is a pre-release. */
if (!(their_protocol = atoi(client_info))
void parse_compress_choice(int final_call)
{
- if (valid_compressions.negotiated_name)
- do_compression = valid_compressions.negotiated_num;
+ if (valid_compressions.negotiated_nni)
+ do_compression = valid_compressions.negotiated_nni->num;
else if (compress_choice) {
struct name_num_item *nni = get_nni_by_name(&valid_compressions, compress_choice, -1);
if (!nni) {
compress_choice = NULL;
/* Snag the compression name for both write_batch's option output & the following debug output. */
- if (valid_compressions.negotiated_name)
- compress_choice = valid_compressions.negotiated_name;
+ if (valid_compressions.negotiated_nni)
+ compress_choice = valid_compressions.negotiated_nni->name;
else if (compress_choice == NULL) {
struct name_num_item *nni = get_nni_by_num(&valid_compressions, do_compression);
compress_choice = nni ? nni->name : "UNKNOWN";
&& (do_compression != CPRES_NONE || do_compression_level != CLVL_NOT_SPECIFIED)) {
rprintf(FINFO, "%s%s compress: %s (level %d)\n",
am_server ? "Server" : "Client",
- valid_compressions.negotiated_name ? " negotiated" : "",
+ valid_compressions.negotiated_nni ? " negotiated" : "",
compress_choice, do_compression_level);
}
}
len = strlen(name);
for (nni = nno->list; nni->name; nni++) {
+ if (nni->num == CSUM_gone)
+ continue;
if (strncasecmp(name, nni->name, len) == 0 && nni->name[len] == '\0')
return nni;
}
if (!nno->saw) {
nno->saw = new_array0(uchar, nno->saw_len);
- /* We'll take this opportunity to make sure that the main_name values are set right. */
+ /* We'll take this opportunity to set the main_nni values for duplicates. */
for (cnt = 1, nni = nno->list; nni->name; nni++, cnt++) {
+ if (nni->num == CSUM_gone)
+ continue;
if (nno->saw[nni->num])
- nni->main_name = nno->list[nno->saw[nni->num]-1].name;
+ nni->main_nni = &nno->list[nno->saw[nni->num]-1];
else
nno->saw[nni->num] = cnt;
}
struct name_num_item *nni = get_nni_by_name(nno, tok, to - tok);
if (nni && !nno->saw[nni->num]) {
nno->saw[nni->num] = ++cnt;
- if (nni->main_name) {
- to = tok + strlcpy(tok, nni->main_name, tobuf_len - (tok - tobuf));
+ if (nni->main_nni) {
+ to = tok + strlcpy(tok, nni->main_nni->name, tobuf_len - (tok - tobuf));
if (to - tobuf >= tobuf_len) {
to = tok - 1;
break;
return to - tobuf;
}
+static int parse_negotiate_str(struct name_num_obj *nno, char *tmpbuf)
+{
+ struct name_num_item *nni, *ret = NULL;
+ int best = nno->saw_len; /* We want best == 1 from the client list, so start with a big number. */
+ char *space, *tok = tmpbuf;
+ while (tok) {
+ while (*tok == ' ') tok++; /* Should be unneeded... */
+ if (!*tok)
+ break;
+ if ((space = strchr(tok, ' ')) != NULL)
+ *space = '\0';
+ nni = get_nni_by_name(nno, tok, -1);
+ if (space) {
+ *space = ' ';
+ tok = space + 1;
+ } else
+ tok = NULL;
+ if (!nni || !nno->saw[nni->num] || best <= nno->saw[nni->num])
+ continue;
+ ret = nni;
+ best = nno->saw[nni->num];
+ if (best == 1 || am_server) /* The server side stops at the first acceptable client choice */
+ break;
+ }
+ if (ret) {
+ free(nno->saw);
+ nno->saw = NULL;
+ nno->negotiated_nni = ret->main_nni ? ret->main_nni : ret;
+ return 1;
+ }
+ return 0;
+}
+
/* This routine is always called with a tmpbuf of MAX_NSTR_STRLEN length, but the
* buffer may be pre-populated with a "len" length string to use OR a len of -1
* to tell us to read a string from the fd. */
static void recv_negotiate_str(int f_in, struct name_num_obj *nno, char *tmpbuf, int len)
{
- struct name_num_item *ret = NULL;
-
if (len < 0)
len = read_vstring(f_in, tmpbuf, MAX_NSTR_STRLEN);
rprintf(FINFO, "Server %s list (on client): %s\n", nno->type, tmpbuf);
}
- if (len > 0) {
- struct name_num_item *nni;
- int best = nno->saw_len; /* We want best == 1 from the client list, so start with a big number. */
- char *space, *tok = tmpbuf;
- while (tok) {
- while (*tok == ' ') tok++; /* Should be unneeded... */
- if (!*tok)
- break;
- if ((space = strchr(tok, ' ')) != NULL)
- *space = '\0';
- nni = get_nni_by_name(nno, tok, -1);
- if (space) {
- *space = ' ';
- tok = space + 1;
- } else
- tok = NULL;
- if (!nni || !nno->saw[nni->num] || best <= nno->saw[nni->num])
- continue;
- ret = nni;
- best = nno->saw[nni->num];
- if (best == 1 || am_server) /* The server side stops at the first acceptable client choice */
- break;
- }
- if (ret) {
- free(nno->saw);
- nno->saw = NULL;
- nno->negotiated_name = ret->main_name ? ret->main_name : ret->name;
- nno->negotiated_num = ret->num;
- return;
- }
- }
+ if (len > 0 && parse_negotiate_str(nno, tmpbuf))
+ return;
if (!am_server || !do_negotiated_strings) {
char *cp = tmpbuf;
const char *env_str = getenv(ntype == NSTR_COMPRESS ? "RSYNC_COMPRESS_LIST" : "RSYNC_CHECKSUM_LIST");
/* When writing a batch file, we always negotiate an old-style choice. */
- if (write_batch)
+ if (write_batch)
env_str = ntype == NSTR_COMPRESS ? "zlib" : protocol_version >= 30 ? "md5" : "md4";
if (am_server && env_str) {
nno->saw[CSUM_MD4_ARCHAIC] = nno->saw[CSUM_MD4_BUSTED] = nno->saw[CSUM_MD4_OLD] = nno->saw[CSUM_MD4];
if (!nno->saw[num1] || (num2 >= 0 && !nno->saw[num2])) {
- rprintf(FERROR, "Your --%s-choice value (%s) was refused by the server.\n",
+ rprintf(FERROR, "Your --%s-choice value (%s) was refused by the server.\n",
ntype == NSTR_COMPRESS ? "compress" : "checksum",
ntype == NSTR_COMPRESS ? compress_choice : checksum_choice);
exit_cleanup(RERR_UNSUPPORTED);
init_nno_saw(nno, 0);
for (nni = nno->list, len = 0; nni->name; nni++) {
- if (nni->main_name) {
- if (!dup_markup)
+ if (nni->num == CSUM_gone)
+ continue;
+ if (nni->main_nni) {
+ if (!dup_markup || nni->main_nni->num == CSUM_gone)
continue;
delim = dup_markup;
}
{
/* We send all the negotiation strings before we start to read them to help avoid a slow startup. */
+ init_checksum_choices();
+
if (!checksum_choice)
send_negotiate_str(f_out, &valid_checksums, NSTR_CHECKSUM);
/* If the other side is too old to negotiate, the above steps just made sure that
* the env didn't disallow the old algorithm. Mark things as non-negotiated. */
if (!do_negotiated_strings)
- valid_checksums.negotiated_name = valid_compressions.negotiated_name = NULL;
+ valid_checksums.negotiated_nni = valid_compressions.negotiated_nni = NULL;
}
void setup_protocol(int f_out,int f_in)
if (remote_protocol < MIN_PROTOCOL_VERSION
|| remote_protocol > MAX_PROTOCOL_VERSION) {
rprintf(FERROR,"protocol version mismatch -- is your shell clean?\n");
- rprintf(FERROR,"(see the rsync man page for an explanation)\n");
+ rprintf(FERROR,"(see the rsync manpage for an explanation)\n");
exit_cleanup(RERR_PROTOCOL);
}
if (remote_protocol < OLD_PROTOCOL_VERSION) {
checksum_seed = read_int(f_in);
}
- parse_checksum_choice(1); /* Sets checksum_type & xfersum_type */
+ parse_checksum_choice(1); /* Sets file_sum_nni & xfer_sum_nni */
parse_compress_choice(1); /* Sets do_compression */
+ /* TODO in the future allow this algorithm to be chosen somehow, but it can't get too
+ * long or the size starts to cause a problem in the xattr abbrev/non-abbrev code. */
+ xattr_sum_nni = parse_csum_name(NULL, 0);
+ xattr_sum_len = csum_len_for_type(xattr_sum_nni->num, 0);
+
if (write_batch && !am_server)
write_batch_shell_file();
init_flist();
}
+
+void output_daemon_greeting(int f_out, int am_client)
+{
+ char tmpbuf[MAX_NSTR_STRLEN];
+ int our_sub = get_subprotocol_version();
+
+ init_checksum_choices();
+
+ get_default_nno_list(&valid_auth_checksums, tmpbuf, MAX_NSTR_STRLEN, '\0');
+
+ io_printf(f_out, "@RSYNCD: %d.%d %s\n", protocol_version, our_sub, tmpbuf);
+
+ if (am_client && DEBUG_GTE(NSTR, 2))
+ rprintf(FINFO, "Client %s list (on client): %s\n", valid_auth_checksums.type, tmpbuf);
+}
+
+void negotiate_daemon_auth(int f_out, int am_client)
+{
+ char tmpbuf[MAX_NSTR_STRLEN];
+ int save_am_server = am_server;
+ int md4_is_old = 0;
+
+ if (!am_client)
+ am_server = 1;
+
+ if (daemon_auth_choices)
+ strlcpy(tmpbuf, daemon_auth_choices, MAX_NSTR_STRLEN);
+ else {
+ strlcpy(tmpbuf, protocol_version >= 30 ? "md5" : "md4", MAX_NSTR_STRLEN);
+ md4_is_old = 1;
+ }
+
+ if (am_client) {
+ recv_negotiate_str(-1, &valid_auth_checksums, tmpbuf, strlen(tmpbuf));
+ if (DEBUG_GTE(NSTR, 1)) {
+ rprintf(FINFO, "Client negotiated %s: %s\n", valid_auth_checksums.type,
+ valid_auth_checksums.negotiated_nni->name);
+ }
+ } else {
+ if (!parse_negotiate_str(&valid_auth_checksums, tmpbuf)) {
+ get_default_nno_list(&valid_auth_checksums, tmpbuf, MAX_NSTR_STRLEN, '\0');
+ io_printf(f_out, "@ERROR: your client does not support one of our daemon-auth checksums: %s\n",
+ tmpbuf);
+ exit_cleanup(RERR_UNSUPPORTED);
+ }
+ }
+ am_server = save_am_server;
+ if (md4_is_old && valid_auth_checksums.negotiated_nni->num == CSUM_MD4) {
+ valid_auth_checksums.negotiated_nni->num = CSUM_MD4_OLD;
+ valid_auth_checksums.negotiated_nni->flags = 0;
+ }
+}
+
+int get_subprotocol_version()
+{
+#if SUBPROTOCOL_VERSION != 0
+ return protocol_version < PROTOCOL_VERSION ? 0 : SUBPROTOCOL_VERSION;
+#else
+ return 0;
+#endif
+}
git.samba.org / rsync.git / blobdiff