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Diffstat (limited to 'src/feature/dirauth/shared_random_state.c')
-rw-r--r--src/feature/dirauth/shared_random_state.c301
1 files changed, 162 insertions, 139 deletions
diff --git a/src/feature/dirauth/shared_random_state.c b/src/feature/dirauth/shared_random_state.c
index b3e4a4ef92..07bc757506 100644
--- a/src/feature/dirauth/shared_random_state.c
+++ b/src/feature/dirauth/shared_random_state.c
@@ -1,4 +1,4 @@
-/* Copyright (c) 2016-2019, The Tor Project, Inc. */
+/* Copyright (c) 2016-2020, The Tor Project, Inc. */
/* See LICENSE for licensing information */
/**
@@ -12,7 +12,7 @@
#include "core/or/or.h"
#include "app/config/config.h"
-#include "app/config/confparse.h"
+#include "lib/confmgt/confmgt.h"
#include "lib/crypt_ops/crypto_util.h"
#include "feature/dirauth/dirvote.h"
#include "feature/nodelist/networkstatus.h"
@@ -20,23 +20,24 @@
#include "feature/dirauth/shared_random.h"
#include "feature/hs_common/shared_random_client.h"
#include "feature/dirauth/shared_random_state.h"
-#include "feature/dircommon/voting_schedule.h"
+#include "feature/dirauth/voting_schedule.h"
#include "lib/encoding/confline.h"
+#include "lib/version/torversion.h"
#include "app/config/or_state_st.h"
-/* Default filename of the shared random state on disk. */
+/** Default filename of the shared random state on disk. */
static const char default_fname[] = "sr-state";
-/* String representation of a protocol phase. */
+/** String representation of a protocol phase. */
static const char *phase_str[] = { "unknown", "commit", "reveal" };
-/* Our shared random protocol state. There is only one possible state per
+/** Our shared random protocol state. There is only one possible state per
* protocol run so this is the global state which is reset at every run once
* the shared random value has been computed. */
static sr_state_t *sr_state = NULL;
-/* Representation of our persistent state on disk. The sr_state above
+/** Representation of our persistent state on disk. The sr_state above
* contains the data parsed from this state. When we save to disk, we
* translate the sr_state to this sr_disk_state. */
static sr_disk_state_t *sr_disk_state = NULL;
@@ -50,24 +51,18 @@ static const char dstate_cur_srv_key[] = "SharedRandCurrentValue";
* members with CONF_CHECK_VAR_TYPE. */
DUMMY_TYPECHECK_INSTANCE(sr_disk_state_t);
-/* These next two are duplicates or near-duplicates from config.c */
-#define VAR(name, conftype, member, initvalue) \
- { name, CONFIG_TYPE_ ## conftype, offsetof(sr_disk_state_t, member), \
- initvalue CONF_TEST_MEMBERS(sr_disk_state_t, conftype, member) }
-/* As VAR, but the option name and member name are the same. */
-#define V(member, conftype, initvalue) \
+#define VAR(varname,conftype,member,initvalue) \
+ CONFIG_VAR_ETYPE(sr_disk_state_t, varname, conftype, member, 0, initvalue)
+#define V(member,conftype,initvalue) \
VAR(#member, conftype, member, initvalue)
-/* Our persistent state magic number. */
-#define SR_DISK_STATE_MAGIC 0x98AB1254
-static int
-disk_state_validate_cb(void *old_state, void *state, void *default_state,
- int from_setconf, char **msg);
-static void disk_state_free_cb(void *);
+/** Our persistent state magic number. */
+#define SR_DISK_STATE_MAGIC 0x98AB1254
-/* Array of variables that are saved to disk as a persistent state. */
-static config_var_t state_vars[] = {
- V(Version, UINT, "0"),
+/** Array of variables that are saved to disk as a persistent state. */
+// clang-format off
+static const config_var_t state_vars[] = {
+ V(Version, POSINT, "0"),
V(TorVersion, STRING, NULL),
V(ValidAfter, ISOTIME, NULL),
V(ValidUntil, ISOTIME, NULL),
@@ -79,29 +74,45 @@ static config_var_t state_vars[] = {
VAR("SharedRandCurrentValue", LINELIST_S, SharedRandValues, NULL),
END_OF_CONFIG_VARS
};
+// clang-format on
-/* "Extra" variable in the state that receives lines we can't parse. This
+/** "Extra" variable in the state that receives lines we can't parse. This
* lets us preserve options from versions of Tor newer than us. */
-static config_var_t state_extra_var = {
- "__extra", CONFIG_TYPE_LINELIST,
- offsetof(sr_disk_state_t, ExtraLines), NULL
- CONF_TEST_MEMBERS(sr_disk_state_t, LINELIST, ExtraLines)
+static const struct_member_t state_extra_var = {
+ .name = "__extra",
+ .type = CONFIG_TYPE_LINELIST,
+ .offset = offsetof(sr_disk_state_t, ExtraLines),
};
-/* Configuration format of sr_disk_state_t. */
+/** Configuration format of sr_disk_state_t. */
static const config_format_t state_format = {
- sizeof(sr_disk_state_t),
- SR_DISK_STATE_MAGIC,
- offsetof(sr_disk_state_t, magic_),
- NULL,
- NULL,
- state_vars,
- disk_state_validate_cb,
- disk_state_free_cb,
- &state_extra_var,
+ .size = sizeof(sr_disk_state_t),
+ .magic = {
+ "sr_disk_state_t",
+ SR_DISK_STATE_MAGIC,
+ offsetof(sr_disk_state_t, magic_),
+ },
+ .vars = state_vars,
+ .extra = &state_extra_var,
};
-/* Return a string representation of a protocol phase. */
+/** Global configuration manager for the shared-random state file */
+static config_mgr_t *shared_random_state_mgr = NULL;
+
+/** Return the configuration manager for the shared-random state file. */
+static const config_mgr_t *
+get_srs_mgr(void)
+{
+ if (PREDICT_UNLIKELY(shared_random_state_mgr == NULL)) {
+ shared_random_state_mgr = config_mgr_new(&state_format);
+ config_mgr_freeze(shared_random_state_mgr);
+ }
+ return shared_random_state_mgr;
+}
+
+static void state_query_del_(sr_state_object_t obj_type, void *data);
+
+/** Return a string representation of a protocol phase. */
STATIC const char *
get_phase_str(sr_phase_t phase)
{
@@ -119,7 +130,7 @@ get_phase_str(sr_phase_t phase)
return the_string;
}
-/* Return the time we should expire the state file created at <b>now</b>.
+/** Return the time we should expire the state file created at <b>now</b>.
* We expire the state file in the beginning of the next protocol run. */
STATIC time_t
get_state_valid_until_time(time_t now)
@@ -130,7 +141,7 @@ get_state_valid_until_time(time_t now)
voting_interval = get_voting_interval();
/* Find the time the current round started. */
- beginning_of_current_round = get_start_time_of_current_round();
+ beginning_of_current_round = dirauth_sched_get_cur_valid_after_time();
/* Find how many rounds are left till the end of the protocol run */
current_round = (now / voting_interval) % total_rounds;
@@ -150,7 +161,7 @@ get_state_valid_until_time(time_t now)
return valid_until;
}
-/* Given the consensus 'valid-after' time, return the protocol phase we should
+/** Given the consensus 'valid-after' time, return the protocol phase we should
* be in. */
STATIC sr_phase_t
get_sr_protocol_phase(time_t valid_after)
@@ -170,7 +181,7 @@ get_sr_protocol_phase(time_t valid_after)
}
}
-/* Add the given <b>commit</b> to <b>state</b>. It MUST be a valid commit
+/** Add the given <b>commit</b> to <b>state</b>. It MUST be a valid commit
* and there shouldn't be a commit from the same authority in the state
* already else verification hasn't been done prior. This takes ownership of
* the commit once in our state. */
@@ -195,7 +206,7 @@ commit_add_to_state(sr_commit_t *commit, sr_state_t *state)
}
}
-/* Helper: deallocate a commit object. (Used with digestmap_free(), which
+/** Helper: deallocate a commit object. (Used with digestmap_free(), which
* requires a function pointer whose argument is void *). */
static void
commit_free_(void *p)
@@ -206,7 +217,7 @@ commit_free_(void *p)
#define state_free(val) \
FREE_AND_NULL(sr_state_t, state_free_, (val))
-/* Free a state that was allocated with state_new(). */
+/** Free a state that was allocated with state_new(). */
static void
state_free_(sr_state_t *state)
{
@@ -220,7 +231,7 @@ state_free_(sr_state_t *state)
tor_free(state);
}
-/* Allocate an sr_state_t object and returns it. If no <b>fname</b>, the
+/** Allocate an sr_state_t object and returns it. If no <b>fname</b>, the
* default file name is used. This function does NOT initialize the state
* timestamp, phase or shared random value. NULL is never returned. */
static sr_state_t *
@@ -239,7 +250,7 @@ state_new(const char *fname, time_t now)
return new_state;
}
-/* Set our global state pointer with the one given. */
+/** Set our global state pointer with the one given. */
static void
state_set(sr_state_t *state)
{
@@ -253,34 +264,33 @@ state_set(sr_state_t *state)
#define disk_state_free(val) \
FREE_AND_NULL(sr_disk_state_t, disk_state_free_, (val))
-/* Free an allocated disk state. */
+/** Free an allocated disk state. */
static void
disk_state_free_(sr_disk_state_t *state)
{
if (state == NULL) {
return;
}
- config_free(&state_format, state);
+ config_free(get_srs_mgr(), state);
}
-/* Allocate a new disk state, initialize it and return it. */
+/** Allocate a new disk state, initialize it and return it. */
static sr_disk_state_t *
disk_state_new(time_t now)
{
- sr_disk_state_t *new_state = tor_malloc_zero(sizeof(*new_state));
+ sr_disk_state_t *new_state = config_new(get_srs_mgr());
- new_state->magic_ = SR_DISK_STATE_MAGIC;
new_state->Version = SR_PROTO_VERSION;
new_state->TorVersion = tor_strdup(get_version());
new_state->ValidUntil = get_state_valid_until_time(now);
new_state->ValidAfter = now;
/* Init config format. */
- config_init(&state_format, new_state);
+ config_init(get_srs_mgr(), new_state);
return new_state;
}
-/* Set our global disk state with the given state. */
+/** Set our global disk state with the given state. */
static void
disk_state_set(sr_disk_state_t *state)
{
@@ -291,7 +301,7 @@ disk_state_set(sr_disk_state_t *state)
sr_disk_state = state;
}
-/* Return -1 if the disk state is invalid (something in there that we can't or
+/** Return -1 if the disk state is invalid (something in there that we can't or
* shouldn't use). Return 0 if everything checks out. */
static int
disk_state_validate(const sr_disk_state_t *state)
@@ -326,31 +336,7 @@ disk_state_validate(const sr_disk_state_t *state)
return -1;
}
-/* Validate the disk state (NOP for now). */
-static int
-disk_state_validate_cb(void *old_state, void *state, void *default_state,
- int from_setconf, char **msg)
-{
- /* We don't use these; only options do. */
- (void) from_setconf;
- (void) default_state;
- (void) old_state;
-
- /* This is called by config_dump which is just before we are about to
- * write it to disk. At that point, our global memory state has been
- * copied to the disk state so it's fair to assume it's trustable. */
- (void) state;
- (void) msg;
- return 0;
-}
-
-static void
-disk_state_free_cb(void *state)
-{
- disk_state_free_(state);
-}
-
-/* Parse the Commit line(s) in the disk state and translate them to the
+/** Parse the Commit line(s) in the disk state and translate them to the
* the memory state. Return 0 on success else -1 on error. */
static int
disk_state_parse_commits(sr_state_t *state,
@@ -405,7 +391,7 @@ disk_state_parse_commits(sr_state_t *state,
return -1;
}
-/* Parse a share random value line from the disk state and save it to dst
+/** Parse a share random value line from the disk state and save it to dst
* which is an allocated srv object. Return 0 on success else -1. */
static int
disk_state_parse_srv(const char *value, sr_srv_t *dst)
@@ -440,7 +426,7 @@ disk_state_parse_srv(const char *value, sr_srv_t *dst)
return ret;
}
-/* Parse both SharedRandCurrentValue and SharedRandPreviousValue line from
+/** Parse both SharedRandCurrentValue and SharedRandPreviousValue line from
* the state. Return 0 on success else -1. */
static int
disk_state_parse_sr_values(sr_state_t *state,
@@ -491,7 +477,7 @@ disk_state_parse_sr_values(sr_state_t *state,
return -1;
}
-/* Parse the given disk state and set a newly allocated state. On success,
+/** Parse the given disk state and set a newly allocated state. On success,
* return that state else NULL. */
static sr_state_t *
disk_state_parse(const sr_disk_state_t *new_disk_state)
@@ -525,7 +511,7 @@ disk_state_parse(const sr_disk_state_t *new_disk_state)
return NULL;
}
-/* From a valid commit object and an allocated config line, set the line's
+/** From a valid commit object and an allocated config line, set the line's
* value to the state string representation of a commit. */
static void
disk_state_put_commit_line(const sr_commit_t *commit, config_line_t *line)
@@ -535,7 +521,7 @@ disk_state_put_commit_line(const sr_commit_t *commit, config_line_t *line)
tor_assert(commit);
tor_assert(line);
- if (!tor_mem_is_zero(commit->encoded_reveal,
+ if (!fast_mem_is_zero(commit->encoded_reveal,
sizeof(commit->encoded_reveal))) {
/* Add extra whitespace so we can format the line correctly. */
tor_asprintf(&reveal_str, " %s", commit->encoded_reveal);
@@ -552,7 +538,7 @@ disk_state_put_commit_line(const sr_commit_t *commit, config_line_t *line)
}
}
-/* From a valid srv object and an allocated config line, set the line's
+/** From a valid srv object and an allocated config line, set the line's
* value to the state string representation of a shared random value. */
static void
disk_state_put_srv_line(const sr_srv_t *srv, config_line_t *line)
@@ -570,7 +556,7 @@ disk_state_put_srv_line(const sr_srv_t *srv, config_line_t *line)
tor_asprintf(&line->value, "%" PRIu64 " %s", srv->num_reveals, encoded);
}
-/* Reset disk state that is free allocated memory and zeroed the object. */
+/** Reset disk state that is free allocated memory and zeroed the object. */
static void
disk_state_reset(void)
{
@@ -580,15 +566,16 @@ disk_state_reset(void)
config_free_lines(sr_disk_state->ExtraLines);
tor_free(sr_disk_state->TorVersion);
- /* Clean up the struct */
- memset(sr_disk_state, 0, sizeof(*sr_disk_state));
+ /* Clear other fields. */
+ sr_disk_state->ValidAfter = 0;
+ sr_disk_state->ValidUntil = 0;
+ sr_disk_state->Version = 0;
/* Reset it with useful data */
- sr_disk_state->magic_ = SR_DISK_STATE_MAGIC;
sr_disk_state->TorVersion = tor_strdup(get_version());
}
-/* Update our disk state based on our global SR state. */
+/** Update our disk state based on our global SR state. */
static void
disk_state_update(void)
{
@@ -632,7 +619,7 @@ disk_state_update(void)
} DIGESTMAP_FOREACH_END;
}
-/* Load state from disk and put it into our disk state. If the state passes
+/** Load state from disk and put it into our disk state. If the state passes
* validation, our global state will be updated with it. Return 0 on
* success. On error, -EINVAL is returned if the state on disk did contained
* something malformed or is unreadable. -ENOENT is returned indicating that
@@ -650,7 +637,7 @@ disk_state_load_from_disk(void)
return ret;
}
-/* Helper for disk_state_load_from_disk(). */
+/** Helper for disk_state_load_from_disk(). */
STATIC int
disk_state_load_from_disk_impl(const char *fname)
{
@@ -679,7 +666,7 @@ disk_state_load_from_disk_impl(const char *fname)
}
disk_state = disk_state_new(time(NULL));
- config_assign(&state_format, disk_state, lines, 0, &errmsg);
+ config_assign(get_srs_mgr(), disk_state, lines, 0, &errmsg);
config_free_lines(lines);
if (errmsg) {
log_warn(LD_DIR, "SR: Reading state error: %s", errmsg);
@@ -712,7 +699,7 @@ disk_state_load_from_disk_impl(const char *fname)
return ret;
}
-/* Save the disk state to disk but before that update it from the current
+/** Save the disk state to disk but before that update it from the current
* state so we always have the latest. Return 0 on success else -1. */
static int
disk_state_save_to_disk(void)
@@ -732,7 +719,7 @@ disk_state_save_to_disk(void)
/* Make sure that our disk state is up to date with our memory state
* before saving it to disk. */
disk_state_update();
- state = config_dump(&state_format, NULL, sr_disk_state, 0, 0);
+ state = config_dump(get_srs_mgr(), NULL, sr_disk_state, 0, 0);
format_local_iso_time(tbuf, now);
tor_asprintf(&content,
"# Tor shared random state file last generated on %s "
@@ -756,7 +743,7 @@ disk_state_save_to_disk(void)
return ret;
}
-/* Reset our state to prepare for a new protocol run. Once this returns, all
+/** Reset our state to prepare for a new protocol run. Once this returns, all
* commits in the state will be removed and freed. */
STATIC void
reset_state_for_new_protocol_run(time_t valid_after)
@@ -777,7 +764,7 @@ reset_state_for_new_protocol_run(time_t valid_after)
sr_state_delete_commits();
}
-/* This is the first round of the new protocol run starting at
+/** This is the first round of the new protocol run starting at
* <b>valid_after</b>. Do the necessary housekeeping. */
STATIC void
new_protocol_run(time_t valid_after)
@@ -811,7 +798,7 @@ new_protocol_run(time_t valid_after)
}
}
-/* Return 1 iff the <b>next_phase</b> is a phase transition from the current
+/** Return 1 iff the <b>next_phase</b> is a phase transition from the current
* phase that is it's different. */
STATIC int
is_phase_transition(sr_phase_t next_phase)
@@ -819,7 +806,7 @@ is_phase_transition(sr_phase_t next_phase)
return sr_state->phase != next_phase;
}
-/* Helper function: return a commit using the RSA fingerprint of the
+/** Helper function: return a commit using the RSA fingerprint of the
* authority or NULL if no such commit is known. */
static sr_commit_t *
state_query_get_commit(const char *rsa_fpr)
@@ -828,11 +815,14 @@ state_query_get_commit(const char *rsa_fpr)
return digestmap_get(sr_state->commits, rsa_fpr);
}
-/* Helper function: This handles the GET state action using an
+/** Helper function: This handles the GET state action using an
* <b>obj_type</b> and <b>data</b> needed for the action. */
static void *
state_query_get_(sr_state_object_t obj_type, const void *data)
{
+ if (BUG(!sr_state))
+ return NULL;
+
void *obj = NULL;
switch (obj_type) {
@@ -860,24 +850,45 @@ state_query_get_(sr_state_object_t obj_type, const void *data)
return obj;
}
-/* Helper function: This handles the PUT state action using an
- * <b>obj_type</b> and <b>data</b> needed for the action. */
+/** Helper function: This handles the PUT state action using an
+ * <b>obj_type</b> and <b>data</b> needed for the action.
+ * PUT frees the previous data before replacing it, if needed. */
static void
state_query_put_(sr_state_object_t obj_type, void *data)
{
+ if (BUG(!sr_state))
+ return;
+
switch (obj_type) {
case SR_STATE_OBJ_COMMIT:
{
sr_commit_t *commit = data;
tor_assert(commit);
+ /* commit_add_to_state() frees the old commit, if there is one */
commit_add_to_state(commit, sr_state);
break;
}
case SR_STATE_OBJ_CURSRV:
- sr_state->current_srv = (sr_srv_t *) data;
+ /* Check if the new pointer is the same as the old one: if it is, it's
+ * probably a bug. The caller may have confused current and previous,
+ * or they may have forgotten to sr_srv_dup().
+ * Putting NULL multiple times is allowed. */
+ if (!BUG(data && sr_state->current_srv == (sr_srv_t *) data)) {
+ /* We own the old SRV, so we need to free it. */
+ state_query_del_(SR_STATE_OBJ_CURSRV, NULL);
+ sr_state->current_srv = (sr_srv_t *) data;
+ }
break;
case SR_STATE_OBJ_PREVSRV:
- sr_state->previous_srv = (sr_srv_t *) data;
+ /* Check if the new pointer is the same as the old one: if it is, it's
+ * probably a bug. The caller may have confused current and previous,
+ * or they may have forgotten to sr_srv_dup().
+ * Putting NULL multiple times is allowed. */
+ if (!BUG(data && sr_state->previous_srv == (sr_srv_t *) data)) {
+ /* We own the old SRV, so we need to free it. */
+ state_query_del_(SR_STATE_OBJ_PREVSRV, NULL);
+ sr_state->previous_srv = (sr_srv_t *) data;
+ }
break;
case SR_STATE_OBJ_VALID_AFTER:
sr_state->valid_after = *((time_t *) data);
@@ -892,11 +903,14 @@ state_query_put_(sr_state_object_t obj_type, void *data)
}
}
-/* Helper function: This handles the DEL_ALL state action using an
+/** Helper function: This handles the DEL_ALL state action using an
* <b>obj_type</b> and <b>data</b> needed for the action. */
static void
state_query_del_all_(sr_state_object_t obj_type)
{
+ if (BUG(!sr_state))
+ return;
+
switch (obj_type) {
case SR_STATE_OBJ_COMMIT:
{
@@ -907,7 +921,7 @@ state_query_del_all_(sr_state_object_t obj_type)
} DIGESTMAP_FOREACH_END;
break;
}
- /* The following object are _NOT_ suppose to be removed. */
+ /* The following objects are _NOT_ supposed to be removed. */
case SR_STATE_OBJ_CURSRV:
case SR_STATE_OBJ_PREVSRV:
case SR_STATE_OBJ_PHASE:
@@ -918,13 +932,16 @@ state_query_del_all_(sr_state_object_t obj_type)
}
}
-/* Helper function: This handles the DEL state action using an
+/** Helper function: This handles the DEL state action using an
* <b>obj_type</b> and <b>data</b> needed for the action. */
static void
state_query_del_(sr_state_object_t obj_type, void *data)
{
(void) data;
+ if (BUG(!sr_state))
+ return;
+
switch (obj_type) {
case SR_STATE_OBJ_PREVSRV:
tor_free(sr_state->previous_srv);
@@ -941,7 +958,7 @@ state_query_del_(sr_state_object_t obj_type, void *data)
}
}
-/* Query state using an <b>action</b> for an object type <b>obj_type</b>.
+/** Query state using an <b>action</b> for an object type <b>obj_type</b>.
* The <b>data</b> pointer needs to point to an object that the action needs
* to use and if anything is required to be returned, it is stored in
* <b>out</b>.
@@ -983,7 +1000,7 @@ state_query(sr_state_action_t action, sr_state_object_t obj_type,
}
}
-/* Delete the current SRV value from the state freeing it and the value is set
+/** Delete the current SRV value from the state freeing it and the value is set
* to NULL meaning empty. */
STATIC void
state_del_current_srv(void)
@@ -991,7 +1008,7 @@ state_del_current_srv(void)
state_query(SR_STATE_ACTION_DEL, SR_STATE_OBJ_CURSRV, NULL, NULL);
}
-/* Delete the previous SRV value from the state freeing it and the value is
+/** Delete the previous SRV value from the state freeing it and the value is
* set to NULL meaning empty. */
STATIC void
state_del_previous_srv(void)
@@ -999,20 +1016,20 @@ state_del_previous_srv(void)
state_query(SR_STATE_ACTION_DEL, SR_STATE_OBJ_PREVSRV, NULL, NULL);
}
-/* Rotate SRV value by freeing the previous value, assigning the current
- * value to the previous one and nullifying the current one. */
+/** Rotate SRV value by setting the previous SRV to the current SRV, and
+ * clearing the current SRV. */
STATIC void
state_rotate_srv(void)
{
/* First delete previous SRV from the state. Object will be freed. */
state_del_previous_srv();
- /* Set previous SRV with the current one. */
- sr_state_set_previous_srv(sr_state_get_current_srv());
- /* Nullify the current srv. */
+ /* Set previous SRV to a copy of the current one. */
+ sr_state_set_previous_srv(sr_srv_dup(sr_state_get_current_srv()));
+ /* Free and NULL the current srv. */
sr_state_set_current_srv(NULL);
}
-/* Set valid after time in the our state. */
+/** Set valid after time in the our state. */
void
sr_state_set_valid_after(time_t valid_after)
{
@@ -1020,16 +1037,19 @@ sr_state_set_valid_after(time_t valid_after)
(void *) &valid_after, NULL);
}
-/* Return the phase we are currently in according to our state. */
+/** Return the phase we are currently in according to our state. */
sr_phase_t
sr_state_get_phase(void)
{
- void *ptr;
+ void *ptr=NULL;
state_query(SR_STATE_ACTION_GET, SR_STATE_OBJ_PHASE, NULL, &ptr);
+ tor_assert(ptr);
return *(sr_phase_t *) ptr;
}
-/* Return the previous SRV value from our state. Value CAN be NULL. */
+/** Return the previous SRV value from our state. Value CAN be NULL.
+ * The state object owns the SRV, so the calling code should not free the SRV.
+ * Use sr_srv_dup() if you want to keep a copy of the SRV. */
const sr_srv_t *
sr_state_get_previous_srv(void)
{
@@ -1039,7 +1059,7 @@ sr_state_get_previous_srv(void)
return srv;
}
-/* Set the current SRV value from our state. Value CAN be NULL. The srv
+/** Set the current SRV value from our state. Value CAN be NULL. The srv
* object ownership is transferred to the state object. */
void
sr_state_set_previous_srv(const sr_srv_t *srv)
@@ -1048,7 +1068,9 @@ sr_state_set_previous_srv(const sr_srv_t *srv)
NULL);
}
-/* Return the current SRV value from our state. Value CAN be NULL. */
+/** Return the current SRV value from our state. Value CAN be NULL.
+ * The state object owns the SRV, so the calling code should not free the SRV.
+ * Use sr_srv_dup() if you want to keep a copy of the SRV. */
const sr_srv_t *
sr_state_get_current_srv(void)
{
@@ -1058,7 +1080,7 @@ sr_state_get_current_srv(void)
return srv;
}
-/* Set the current SRV value from our state. Value CAN be NULL. The srv
+/** Set the current SRV value from our state. Value CAN be NULL. The srv
* object ownership is transferred to the state object. */
void
sr_state_set_current_srv(const sr_srv_t *srv)
@@ -1067,7 +1089,7 @@ sr_state_set_current_srv(const sr_srv_t *srv)
NULL);
}
-/* Clean all the SRVs in our state. */
+/** Clean all the SRVs in our state. */
void
sr_state_clean_srvs(void)
{
@@ -1076,7 +1098,7 @@ sr_state_clean_srvs(void)
state_del_current_srv();
}
-/* Return a pointer to the commits map from our state. CANNOT be NULL. */
+/** Return a pointer to the commits map from our state. CANNOT be NULL. */
digestmap_t *
sr_state_get_commits(void)
{
@@ -1087,7 +1109,7 @@ sr_state_get_commits(void)
return commits;
}
-/* Update the current SR state as needed for the upcoming voting round at
+/** Update the current SR state as needed for the upcoming voting round at
* <b>valid_after</b>. */
void
sr_state_update(time_t valid_after)
@@ -1151,7 +1173,7 @@ sr_state_update(time_t valid_after)
}
}
-/* Return commit object from the given authority digest <b>rsa_identity</b>.
+/** Return commit object from the given authority digest <b>rsa_identity</b>.
* Return NULL if not found. */
sr_commit_t *
sr_state_get_commit(const char *rsa_identity)
@@ -1165,7 +1187,7 @@ sr_state_get_commit(const char *rsa_identity)
return commit;
}
-/* Add <b>commit</b> to the permanent state. The commit object ownership is
+/** Add <b>commit</b> to the permanent state. The commit object ownership is
* transferred to the state so the caller MUST not free it. */
void
sr_state_add_commit(sr_commit_t *commit)
@@ -1180,14 +1202,14 @@ sr_state_add_commit(sr_commit_t *commit)
sr_commit_get_rsa_fpr(commit));
}
-/* Remove all commits from our state. */
+/** Remove all commits from our state. */
void
sr_state_delete_commits(void)
{
state_query(SR_STATE_ACTION_DEL_ALL, SR_STATE_OBJ_COMMIT, NULL, NULL);
}
-/* Copy the reveal information from <b>commit</b> into <b>saved_commit</b>.
+/** Copy the reveal information from <b>commit</b> into <b>saved_commit</b>.
* This <b>saved_commit</b> MUST come from our current SR state. Once modified,
* the disk state is updated. */
void
@@ -1208,7 +1230,7 @@ sr_state_copy_reveal_info(sr_commit_t *saved_commit, const sr_commit_t *commit)
sr_commit_get_rsa_fpr(saved_commit));
}
-/* Set the fresh SRV flag from our state. This doesn't need to trigger a
+/** Set the fresh SRV flag from our state. This doesn't need to trigger a
* disk state synchronization so we directly change the state. */
void
sr_state_set_fresh_srv(void)
@@ -1216,7 +1238,7 @@ sr_state_set_fresh_srv(void)
sr_state->is_srv_fresh = 1;
}
-/* Unset the fresh SRV flag from our state. This doesn't need to trigger a
+/** Unset the fresh SRV flag from our state. This doesn't need to trigger a
* disk state synchronization so we directly change the state. */
void
sr_state_unset_fresh_srv(void)
@@ -1224,14 +1246,14 @@ sr_state_unset_fresh_srv(void)
sr_state->is_srv_fresh = 0;
}
-/* Return the value of the fresh SRV flag. */
+/** Return the value of the fresh SRV flag. */
unsigned int
sr_state_srv_is_fresh(void)
{
return sr_state->is_srv_fresh;
}
-/* Cleanup and free our disk and memory state. */
+/** Cleanup and free our disk and memory state. */
void
sr_state_free_all(void)
{
@@ -1240,9 +1262,10 @@ sr_state_free_all(void)
/* Nullify our global state. */
sr_state = NULL;
sr_disk_state = NULL;
+ config_mgr_free(shared_random_state_mgr);
}
-/* Save our current state in memory to disk. */
+/** Save our current state in memory to disk. */
void
sr_state_save(void)
{
@@ -1250,7 +1273,7 @@ sr_state_save(void)
state_query(SR_STATE_ACTION_SAVE, 0, NULL, NULL);
}
-/* Return 1 iff the state has been initialized that is it exists in memory.
+/** Return 1 iff the state has been initialized that is it exists in memory.
* Return 0 otherwise. */
int
sr_state_is_initialized(void)
@@ -1258,7 +1281,7 @@ sr_state_is_initialized(void)
return sr_state == NULL ? 0 : 1;
}
-/* Initialize the disk and memory state.
+/** Initialize the disk and memory state.
*
* If save_to_disk is set to 1, the state is immediately saved to disk after
* creation else it's not thus only kept in memory.
@@ -1310,7 +1333,7 @@ sr_state_init(int save_to_disk, int read_from_disk)
/* We have a state in memory, let's make sure it's updated for the current
* and next voting round. */
{
- time_t valid_after = voting_schedule_get_next_valid_after_time();
+ time_t valid_after = dirauth_sched_get_next_valid_after_time();
sr_state_update(valid_after);
}
return 0;
@@ -1321,7 +1344,7 @@ sr_state_init(int save_to_disk, int read_from_disk)
#ifdef TOR_UNIT_TESTS
-/* Set the current phase of the protocol. Used only by unit tests. */
+/** Set the current phase of the protocol. Used only by unit tests. */
void
set_sr_phase(sr_phase_t phase)
{
@@ -1330,7 +1353,7 @@ set_sr_phase(sr_phase_t phase)
sr_state->phase = phase;
}
-/* Get the SR state. Used only by unit tests */
+/** Get the SR state. Used only by unit tests */
sr_state_t *
get_sr_state(void)
{