commit 82023f6a1ebb25e48a9ccfd9d68f5ebc5ea8c4c0 Author: AltF4 altf4@phx2600.org Date: Tue Feb 15 22:32:21 2011 -0700
Sebastian's Changes to #1074
Fixes some small mistakes with AltF4's #1074 fix --- src/or/command.c | 34 ++++++++++++---------------------- 1 files changed, 12 insertions(+), 22 deletions(-)
diff --git a/src/or/command.c b/src/or/command.c index abe755e..c873516 100644 --- a/src/or/command.c +++ b/src/or/command.c @@ -44,8 +44,9 @@ uint64_t stats_n_destroy_cells_processed = 0; uint64_t stats_n_versions_cells_processed = 0; /** How many CELL_NETINFO cells have we received, ever? */ uint64_t stats_n_netinfo_cells_processed = 0; -/** Have we received skew info from a NETINFO cell from a trusted dir, ever? */ -static int received_skew_from_trusted_dir = 0; +/** Have we received a NETINFO cell from a trusted dir, ever? Used + * to decide what to do about time skew. */ +static int received_netinfo_from_trusted_dir = 0;
/* These are the main functions for processing cells */ static void command_process_create_cell(cell_t *cell, or_connection_t *conn); @@ -620,20 +621,15 @@ command_process_netinfo_cell(cell_t *cell, or_connection_t *conn)
/* Act on apparent skew. */ /** Warn when we get a netinfo skew with at least this value. - Ignore if we've already recieved skew info from a trusted dir */ + Ignore if we've already received skew info from a trusted dir */ #define NETINFO_NOTICE_SKEW 3600 if (labs(apparent_skew) > NETINFO_NOTICE_SKEW && router_get_by_digest(conn->identity_digest) && - !received_skew_from_trusted_dir) { + !received_netinfo_from_trusted_dir) { char dbuf[64]; - int severity; /*XXXX be smarter about when everybody says we are skewed. */ - if (router_digest_is_trusted_dir(conn->identity_digest)) { - severity = LOG_WARN; - received_skew_from_trusted_dir = 1; - } - else - severity = LOG_INFO; + int severity = router_digest_is_trusted_dir(conn->identity_digest) ? + LOG_WARN : LOG_INFO; format_time_interval(dbuf, sizeof(dbuf), apparent_skew); log_fn(severity, LD_GENERAL, "Received NETINFO cell with skewed time from " "server at %s:%d. It seems that our clock is %s by %s, or " @@ -647,25 +643,20 @@ command_process_netinfo_cell(cell_t *cell, or_connection_t *conn) "CLOCK_SKEW SKEW=%ld SOURCE=OR:%s:%d", apparent_skew, conn->_base.address, conn->_base.port); - } - else { /* Connect to a trusted dir to trigger a NETINFO cell*/ + } else { /* Connect to a trusted dir to trigger a NETINFO cell*/ routerstatus_t *any_trusted_dir = router_pick_trusteddirserver(NO_AUTHORITY, 0); - const tor_addr_t trusted_dir_addr; + tor_addr_t trusted_dir_addr; tor_addr_from_ipv4n(&trusted_dir_addr, any_trusted_dir->addr); connection_or_connect(&trusted_dir_addr, any_trusted_dir->or_port, any_trusted_dir->descriptor_digest); - } }
- /* Mark a flag if we get a good skew from a trusted dir */ - if (labs(apparent_skew) < NETINFO_NOTICE_SKEW && - router_digest_is_trusted_dir(conn->identity_digest) && - !received_skew_from_trusted_dir) { - received_skew_from_trusted_dir = 1; - } + /* Note that we received a netinfo cell from a trusted directory */ + if (router_digest_is_trusted_dir(conn->identity_digest)) + received_netinfo_from_trusted_dir = 1;
/* XXX maybe act on my_apparent_addr, if the source is sufficiently * trustworthy. */ @@ -679,4 +670,3 @@ command_process_netinfo_cell(cell_t *cell, or_connection_t *conn) conn->_base.port, (int)conn->link_proto); assert_connection_ok(TO_CONN(conn),time(NULL)); } -