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Implement several 008pre1 items: needs more testing

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svn:r1981
This commit is contained in:
Nick Mathewson 2004-06-21 04:37:27 +00:00
parent 207fcb35d1
commit 8aec3a7301
10 changed files with 203 additions and 34 deletions
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24
doc/TODO
View File

@ -19,12 +19,12 @@ For scalability:
For dtor:
NICK pre1:
- make all ORs serve the directory too.
- "AuthoritativeDir 1" for dirservers
- non-authorative servers with dirport publish opt dircacheport
- make clients read that and use it.
- make clients able to read a normal dirport from non-trusted OR too
- make ORs parse-and-keep the directory they pull down
. make all ORs serve the directory too.
o "AuthoritativeDir 1" for dirservers
o non-authorative servers with dirport publish opt dircacheport
o make clients read that and use it.
o make clients able to read a normal dirport from non-trusted OR too
o make ORs parse-and-keep-and-serve the directory they pull down
- authoritativedirservers should pull down directories from
other authdirservers, to merge descriptors.
- Have clients and dirservers preserve reputation info over
@ -35,12 +35,16 @@ NICK pre1:
- distinguish directory-is-dirty from runninglist-is-dirty
- ORs keep this too, and serve it
- tor remembers descriptor-lists across reboots.
- Packages define datadir as /var/lib/tor/. If no datadir is defined,
. Packages define datadir as /var/lib/tor/. If no datadir is defined,
then choose, make, and secure ~/.tor as datadir.
- Contact info, pgp fingerprint, comments in router desc.
- Add a ContactInfo line to torrc, which gets published in
o Adjust tor
o Change torrc.sample
- Change packages
- Look in ~/.torrc if no */etc/torrc is found?
o Contact info, pgp fingerprint, comments in router desc.
o Add a ContactInfo line to torrc, which gets published in
descriptor (as opt)
- write tor version at the top of each log file
o write tor version at the top of each log file
pre2:
- refer to things by key:

51
src/common/log.c
View File

@ -48,20 +48,12 @@ static INLINE const char *sev_to_string(int severity) {
/** Linked list of logfile_t. */
static logfile_t *logfiles = NULL;
/** Helper: Format a log message into a fixed-sized buffer. (This is
* factored out of <b>logv</b> so that we never format a message more
* than once.)
*/
static INLINE void format_msg(char *buf, size_t buf_len,
int severity, const char *funcname,
const char *format, va_list ap)
static INLINE size_t _log_prefix(char *buf, size_t buf_len, int severity)
{
time_t t;
struct timeval now;
size_t n;
buf_len -= 2; /* subtract 2 characters so we have room for \n\0 */
tor_gettimeofday(&now);
t = (time_t)now.tv_sec;
@ -73,6 +65,45 @@ static INLINE void format_msg(char *buf, size_t buf_len,
n = buf_len-1; /* the *nprintf funcs return how many bytes they
* _would_ print, if the output is truncated.
* Subtract one because the count doesn't include the \0 */
return n;
}
/** If lf refers to an actual file that we have just opened, and the file
* contains no data, log an "opening new logfile" message at the top. **/
static void log_tor_version(logfile_t *lf)
{
char buf[256];
size_t n;
if (!lf->needs_close)
/* If it doesn't get closed, it isn't really a file. */
return;
if (lf->is_temporary)
/* If it's temporary, it isn't really a file. */
return;
if (ftell(lf->file) != 0)
/* We aren't at the start of the file; no need to log. */
return;
n = _log_prefix(buf, 250, LOG_NOTICE);
n += snprintf(buf+n, 250-n, "Tor %s creating new log file\n", VERSION);
if (n>250)
n = 250;
buf[n+1]='\0';
fputs(buf, lf->file);
}
/** Helper: Format a log message into a fixed-sized buffer. (This is
* factored out of <b>logv</b> so that we never format a message more
* than once.)
*/
static INLINE void format_msg(char *buf, size_t buf_len,
int severity, const char *funcname,
const char *format, va_list ap)
{
size_t n;
buf_len -= 2; /* subtract 2 characters so we have room for \n\0 */
n = _log_prefix(buf, buf_len, severity);
if (funcname) {
n += snprintf(buf+n, buf_len-n, "%s(): ", funcname);
@ -159,6 +190,7 @@ void reset_logs()
if (lf->needs_close) {
fclose(lf->file);
lf->file = fopen(lf->filename, "a");
log_tor_version(lf);
}
}
}
@ -224,6 +256,7 @@ int add_file_log(int loglevelMin, int loglevelMax, const char *filename)
if (!f) return -1;
add_stream_log(loglevelMin, loglevelMax, filename, f);
logfiles->needs_close = 1;
log_tor_version(logfiles);
return 0;
}

37
src/or/config.c
View File

@ -188,10 +188,13 @@ static int config_assign(or_options_t *options, struct config_line_t *list) {
/* string options */
config_compare(list, "Address", CONFIG_TYPE_STRING, &options->Address) ||
config_compare(list, "AuthoritativeDirectory",CONFIG_TYPE_BOOL, &options->AuthoritativeDir) ||
config_compare(list, "BandwidthRate", CONFIG_TYPE_INT, &options->BandwidthRate) ||
config_compare(list, "BandwidthBurst", CONFIG_TYPE_INT, &options->BandwidthBurst) ||
config_compare(list, "ContactInfo", CONFIG_TYPE_STRING, &options->ContactInfo) ||
config_compare(list, "DebugLogFile", CONFIG_TYPE_STRING, &options->DebugLogFile) ||
config_compare(list, "DataDirectory", CONFIG_TYPE_STRING, &options->DataDirectory) ||
config_compare(list, "DirPort", CONFIG_TYPE_INT, &options->DirPort) ||
@ -627,10 +630,12 @@ int getconfig(int argc, char **argv, or_options_t *options) {
result = -1;
}
#if 0
if(options->ORPort && options->DataDirectory == NULL) {
log(LOG_WARN,"DataDirectory option required if ORPort is set, but not found.");
result = -1;
}
#endif
if (options->ORPort) {
if (options->Nickname == NULL) {
@ -675,6 +680,11 @@ int getconfig(int argc, char **argv, or_options_t *options) {
result = -1;
}
if(options->AuthoritativeDir && !options->DirPort) {
log(LOG_WARN,"Running as authoritative directory, but no DirPort set.");
result = -1;
}
if(options->SocksPort > 1 &&
(options->PathlenCoinWeight < 0.0 || options->PathlenCoinWeight >= 1.0)) {
log(LOG_WARN,"PathlenCoinWeight option must be >=0.0 and <1.0.");
@ -880,6 +890,33 @@ void exit_policy_free(struct exit_policy_t *p) {
}
}
const char *get_data_directory(or_options_t *options) {
const char *d;
char buf[1024];
const char *home;
size_t n;
if (options->DataDirectory)
d = options->DataDirectory;
else
d = "~/.tor";
if (!strncmp(d,"~/",2)) {
home = getenv("HOME");
if (!home) {
log_fn(LOG_ERR, "Couldn't find $HOME environment variable for data directory %s", d);
exit(1);
}
n = snprintf(buf,1020,"%s/%s",home,d+2);
if (n>=1020) {
log_fn(LOG_ERR, "Overlong data directory name.");
exit(1);
}
tor_free(options->DataDirectory);
options->DataDirectory = tor_strdup(buf);
}
return options->DataDirectory;
}
/*
Local Variables:
mode:c

26
src/or/dirserv.c
View File

@ -576,6 +576,23 @@ dirserv_dump_directory_to_string(char *s, unsigned int maxlen,
/** Most recently generated encoded signed directory. */
static char *the_directory = NULL;
static int the_directory_len = -1;
static char *cached_directory = NULL;
static time_t cached_directory_published = 0;
static int cached_directory_len = -1;
void dirserv_set_cached_directory(const char *directory, time_t when)
{
time_t now;
if (!options.AuthoritativeDir)
return;
now = time(NULL);
if (when>cached_directory_published &&
when<now+ROUTER_ALLOW_SKEW) {
tor_free(cached_directory);
cached_directory = tor_strdup(directory);
cached_directory_len = strlen(cached_directory);
}
}
/** Set *<b>directory</b> to the most recently generated encoded signed
* directory, generating a new one as necessary. */
@ -583,6 +600,15 @@ size_t dirserv_get_directory(const char **directory)
{
char *new_directory;
char filename[512];
if (!options.AuthoritativeDir) {
if (cached_directory) {
*directory = cached_directory;
return (size_t) cached_directory_len;
} else {
/* no directory yet retrieved */
return 0;
}
}
if (the_directory_is_dirty) {
new_directory = tor_malloc(MAX_DIR_SIZE);
if (dirserv_dump_directory_to_string(new_directory, MAX_DIR_SIZE,

7
src/or/main.c
View File

@ -576,6 +576,13 @@ static int init_from_config(int argc, char **argv) {
}
}
/* Ensure data directory is private; create if possible. */
if (check_private_dir(get_data_directory(&options), 1) != 0) {
log_fn(LOG_ERR, "Couldn't access/create private data directory %s",
get_data_directory(&options));
return -1;
}
/* Start backgrounding the process, if requested. */
if (options.RunAsDaemon) {
start_daemon(options.DataDirectory);

5
src/or/or.h
View File

@ -363,7 +363,6 @@
#define RELAY_COMMAND_INTRODUCE2 35
#define RELAY_COMMAND_RENDEZVOUS1 36
#define RELAY_COMMAND_RENDEZVOUS2 37
/* DOCDOC Spec these next two. */
#define RELAY_COMMAND_INTRO_ESTABLISHED 38
#define RELAY_COMMAND_RENDEZVOUS_ESTABLISHED 39
#define RELAY_COMMAND_INTRODUCE_ACK 40
@ -823,6 +822,7 @@ typedef struct {
int ORPort; /**< Port to listen on for OR connections. */
int SocksPort; /**< Port to listen on for SOCKS connections. */
int DirPort; /**< Port to listen on for directory connections. */
int AuthoritativeDir; /**< Boolean: is this an authoritative directory? */
int MaxConn; /**< Maximum number of simultaneous connections. */
int TrafficShaping; /**< Unused. */
int LinkPadding; /**< Unused. */
@ -848,6 +848,7 @@ typedef struct {
* other ORs are running. */
struct config_line_t *RendConfigLines; /**< List of configuration lines
* for rendezvous services. */
char *ContactInfo; /** Contact info to be published in the directory */
} or_options_t;
/* XXX are these good enough defaults? */
@ -989,6 +990,7 @@ int config_init_logs(or_options_t *options);
void config_parse_exit_policy(struct config_line_t *cfg,
struct exit_policy_t **dest);
void exit_policy_free(struct exit_policy_t *p);
const char *get_data_directory(or_options_t *options);
/********************************* connection.c ***************************/
@ -1136,6 +1138,7 @@ int dirserv_dump_directory_to_string(char *s, unsigned int maxlen,
void directory_set_dirty(void);
size_t dirserv_get_directory(const char **cp);
size_t dirserv_get_runningrouters(const char **rr);
void dirserv_set_cached_directory(const char *directory, time_t when);
/********************************* dns.c ***************************/

24
src/or/router.c
View File

@ -532,8 +532,10 @@ int router_dump_router_to_string(char *s, int maxlen, routerinfo_t *router,
router->address,
router->or_port,
router->socks_port,
router->dir_port,
/* XXX008 only use dir_port here if authoritative server, else use opt line below */
/* Due to an 0.0.7 bug, we can't actually say that we have a dirport unles
* we're an authoritative directory.
*/
router->is_trusted_dir ? router->dir_port : 0,
router->platform,
published,
(int) router->bandwidthrate,
@ -550,6 +552,24 @@ int router_dump_router_to_string(char *s, int maxlen, routerinfo_t *router,
/* From now on, we use 'written' to remember the current length of 's'. */
written = result;
if (router->dir_port && !router->is_trusted_dir) {
/* dircacheport wasn't recognized before 0.0.8pre. (When 0.0.7 is gone,
* we can fold this back into dirport anyway.)
result = snprintf(s+written,maxlen-written, "opt dircacheport %d\n",
router->dir_port);
if (result<0 || result+written > maxlen)
return -1;
written += result;
}
if (options.ContactInfo && strlen(options.ContactInfo)) {
result = snprintf(s+written,maxlen-written, "opt contact %s\n",
options.ContactInfo);
if (result<0 || result+written > maxlen)
return -1;
written += result;
}
/* Write the exit policy to the end of 's'. */
for(tmpe=router->exit_policy; tmpe; tmpe=tmpe->next) {
in.s_addr = htonl(tmpe->addr);

1
src/or/routerlist.c
View File

@ -477,6 +477,7 @@ int router_load_routerlist_from_directory(const char *s,
log_fn(LOG_WARN, "Error resolving routerlist");
return -1;
}
dirserv_set_cached_directory(s, routerlist->published_on);
return 0;
}

43
src/or/routerparse.c
View File

@ -39,6 +39,8 @@ typedef enum {
K_OPT,
K_BANDWIDTH,
K_PORTS,
K_DIRCACHEPORT,
K_CONTACT,
_UNRECOGNIZED,
_ERR,
_EOF,
@ -109,7 +111,8 @@ static struct {
{ "platform", K_PLATFORM, CONCAT_ARGS, NO_OBJ, RTR_ONLY },
{ "published", K_PUBLISHED, CONCAT_ARGS, NO_OBJ, ANY },
{ "opt", K_OPT, CONCAT_ARGS, OBJ_OK, ANY },
{ "dircacheport", K_DIRCACHEPORT, ARGS, NO_OBJ, RTR_ONLY },
{ "contact", K_CONTACT, CONCAT_ARGS, NO_OBJ, ANY },
{ NULL, -1 }
};
@ -587,6 +590,17 @@ routerinfo_t *router_parse_entry_from_string(const char *s,
ports_set = 1;
}
tok = find_first_by_keyword(tokens, K_DIRCACHEPORT);
if (tok) {
if (router->dir_port)
log_fn(LOG_WARN,"Redundant dircacheport line");
if (tok->n_args != 1) {
log_fn(LOG_WARN,"Wrong # of arguments to \"dircacheport\"");
goto err;
}
router->dir_port = atoi(tok->args[0]);
}
tok = find_first_by_keyword(tokens, K_BANDWIDTH);
if (tok && bw_set) {
log_fn(LOG_WARN,"Redundant bandwidth line");
@ -898,7 +912,7 @@ token_free(directory_token_t *tok)
static directory_token_t *
get_next_token(const char **s, where_syntax where) {
const char *next, *obstart;
int i, done, allocated;
int i, done, allocated, is_opt;
directory_token_t *tok;
arg_syntax a_syn;
obj_syntax o_syn = NO_OBJ;
@ -923,7 +937,17 @@ get_next_token(const char **s, where_syntax where) {
tok->error = "Unexpected EOF"; return tok;
}
/* It's a keyword... but which one? */
for (i = 0 ; token_table[i].t ; ++i) {
is_opt = !strncmp("opt", *s, next-*s);
if (is_opt) {
*s = eat_whitespace(next);
next = NULL;
if (**s)
next = find_whitespace(*s);
if (!**s || !next) {
RET_ERR("opt without keyword");
}
}
for (i = 0; token_table[i].t ; ++i) {
if (!strncmp(token_table[i].t, *s, next-*s)) {
/* We've found the keyword. */
tok->tp = token_table[i].v;
@ -979,6 +1003,18 @@ get_next_token(const char **s, where_syntax where) {
}
}
if (tok->tp == _ERR) {
if (is_opt) {
tok->tp = K_OPT;
*s = eat_whitespace_no_nl(next);
next = strchr(*s,'\n');
if (!next)
RET_ERR("Unexpected EOF");
tok->args = tor_malloc(sizeof(char*));
tok->args[0] = tor_strndup(*s,next-*s);
tok->n_args = 1;
*s = eat_whitespace_no_nl(next+1);
a_syn = OBJ_OK;
} else {
tok->tp = _UNRECOGNIZED;
next = strchr(*s, '\n');
if (!next) {
@ -990,6 +1026,7 @@ get_next_token(const char **s, where_syntax where) {
*s = next+1;
o_syn = OBJ_OK;
}
}
*s = eat_whitespace(*s);
if (strncmp(*s, "-----BEGIN ", 11)) {
goto done_tokenizing;

1
src/or/test.c
View File

@ -666,6 +666,7 @@ test_dir_format()
r1.or_port = 9000;
r1.socks_port = 9002;
r1.dir_port = 9003;
r1.is_trusted_dir = 1;
r1.onion_pkey = pk1;
r1.identity_pkey = pk2;
r1.bandwidthrate = 1000;