From d8aa69925380acf165335917bb87becb2f659875 Mon Sep 17 00:00:00 2001 From: juga Date: Sat, 18 Nov 2023 17:45:28 +0000 Subject: [PATCH] bwauth: Allow "node_id" KeyValue without "$" Allow "node_id" KeyValue without the dollar sign at the start of the hexdigit in the BandwidthFiles, in order to easier database queries combining Tor documents in which the relays fingerprint doesn't include it. Bugfix on all supported versions of Tor. Closes #40891 --- changes/ticket40891 | 5 +++++ src/feature/dirauth/bwauth.c | 10 +++++++--- src/test/test_dir.c | 3 ++- 3 files changed, 14 insertions(+), 4 deletions(-) create mode 100644 changes/ticket40891 diff --git a/changes/ticket40891 b/changes/ticket40891 new file mode 100644 index 0000000000..c0e2080587 --- /dev/null +++ b/changes/ticket40891 @@ -0,0 +1,5 @@ + o Minor feature (directory authority): + - Allow BandwidthFiles "node_id" KeyValue without the dollar sign at the + start of the hexdigit, in order to easier database queries combining + Tor documents in which the relays fingerprint does not include it. + Fixes bug 40891; bugfix on 0.4.7 (all supported versions of Tor). diff --git a/src/feature/dirauth/bwauth.c b/src/feature/dirauth/bwauth.c index 90b425842a..b5b1081e47 100644 --- a/src/feature/dirauth/bwauth.c +++ b/src/feature/dirauth/bwauth.c @@ -434,15 +434,19 @@ measured_bw_line_parse(measured_bw_line_t *out, const char *orig_line, return -1; } got_bw=1; - } else if (strcmpstart(cp, "node_id=$") == 0) { + // Allow node_id to start with or without the dollar sign. + } else if (strcmpstart(cp, "node_id=") == 0) { if (got_node_id) { log_warn(LD_DIRSERV, "Double node_id= in bandwidth file line: %s", escaped(orig_line)); tor_free(line); return -1; } - cp+=strlen("node_id=$"); - + if (strcmpstart(cp, "node_id=$") == 0) { + cp+=strlen("node_id=$"); + } else if (strcmpstart(cp, "node_id=") == 0) { + cp+=strlen("node_id="); + } if (strlen(cp) != HEX_DIGEST_LEN || base16_decode(out->node_id, DIGEST_LEN, cp, HEX_DIGEST_LEN) != DIGEST_LEN) { diff --git a/src/test/test_dir.c b/src/test/test_dir.c index 87aaef7fe6..1811098440 100644 --- a/src/test/test_dir.c +++ b/src/test/test_dir.c @@ -2072,6 +2072,8 @@ test_dir_measured_bw_kb(void *arg) int i; const char *lines_pass[] = { "node_id=$557365204145532d32353620696e73746561642e bw=1024\n", + /* check whether node_id does not need the dollar sign at the start */ + "node_id=557365204145532d32353620696e73746561642e bw=1024\n", "node_id=$557365204145532d32353620696e73746561642e\t bw=1024 \n", " node_id=$557365204145532d32353620696e73746561642e bw=1024\n", "\tnoise\tnode_id=$557365204145532d32353620696e73746561642e " @@ -2129,7 +2131,6 @@ test_dir_measured_bw_kb(void *arg) " node_id= ", "node_id==$557365204145532d32353620696e73746561642e bw==1024\n", "node_id=$55736520414552d32353620696e73746561642e bw=1024\n", - "node_id=557365204145532d32353620696e73746561642e bw=1024\n", "node_id= $557365204145532d32353620696e73746561642e bw=0.23\n", /* Test that a line with vote=0 will fail too, so that it is ignored. */