commit 7b34ab3e384b5c72e938d11e5e05c72b9d529bb8 Author: Nick Mathewson nickm@torproject.org Date: Tue Nov 14 16:18:53 2017 -0500

Extract common code for creating the keys directory.

This had somehow gotten duplicated between router.c and routerkeys.c --- src/or/config.c | 26 ++++++++++++++++++++++++++ src/or/config.h | 6 ++++++ src/or/router.c | 17 ++--------------- src/or/routerkeys.c | 19 ++++--------------- 4 files changed, 38 insertions(+), 30 deletions(-)

diff --git a/src/or/config.c b/src/or/config.c index f024764f8..d149a144d 100644 --- a/src/or/config.c +++ b/src/or/config.c @@ -1289,6 +1289,32 @@ check_and_create_data_directory(int create, return 0; }

+/** + * Ensure that our keys directory exists, with appropriate permissions. + * Return 0 on success, -1 on failure. + */ +int +create_keys_directory(const or_options_t *options) +{ + /* Make sure DataDirectory exists, and is private. */ + cpd_check_t cpd_opts = CPD_CREATE; + if (options->DataDirectoryGroupReadable) + cpd_opts |= CPD_GROUP_READ; + if (check_private_dir(options->DataDirectory, cpd_opts, options->User)) { + log_err(LD_OR, "Can't create/check datadirectory %s", + options->DataDirectory); + return -1; + } + /* Check the key directory. */ + char *keydir = options_get_datadir_fname(options, "keys"); + if (check_private_dir(keydir, CPD_CREATE, options->User)) { + tor_free(keydir); + return -1; + } + tor_free(keydir); + return 0; +} + /* Helps determine flags to pass to switch_id. */ static int have_low_ports = -1;

diff --git a/src/or/config.h b/src/or/config.h index efdd8c59b..de9858a25 100644 --- a/src/or/config.h +++ b/src/or/config.h @@ -72,6 +72,10 @@ MOCK_DECL(char *, * get_datadir_fname2_suffix. */ #define get_datadir_fname2(sub1,sub2) \ get_datadir_fname2_suffix((sub1), (sub2), NULL) +/** Return a newly allocated string containing datadir/sub1 relative to + * opts. See get_datadir_fname2_suffix. */ +#define options_get_datadir_fname(opts,sub1) \ + options_get_datadir_fname2_suffix((opts),(sub1), NULL, NULL) /** Return a newly allocated string containing datadir/sub1/sub2 relative to * opts. See get_datadir_fname2_suffix. */ #define options_get_datadir_fname2(opts,sub1,sub2) \ @@ -83,6 +87,8 @@ MOCK_DECL(char *,

int using_default_dir_authorities(const or_options_t *options);

+int create_keys_directory(const or_options_t *options); + int check_or_create_data_subdir(const char *subdir); int write_to_data_subdir(const char* subdir, const char* fname, const char* str, const char* descr); diff --git a/src/or/router.c b/src/or/router.c index 8ad5d038e..fb8596a8d 100644 --- a/src/or/router.c +++ b/src/or/router.c @@ -932,22 +932,9 @@ init_keys(void) } if (init_keys_common() < 0) return -1; - /* Make sure DataDirectory exists, and is private. */ - cpd_check_t cpd_opts = CPD_CREATE; - if (options->DataDirectoryGroupReadable) - cpd_opts |= CPD_GROUP_READ; - if (check_private_dir(options->DataDirectory, cpd_opts, options->User)) { - log_err(LD_OR, "Can't create/check datadirectory %s", - options->DataDirectory); - return -1; - } - /* Check the key directory. */ - keydir = get_datadir_fname("keys"); - if (check_private_dir(keydir, CPD_CREATE, options->User)) { - tor_free(keydir); + + if (create_keys_directory(options) < 0) return -1; - } - tor_free(keydir);

/* 1a. Read v3 directory authority key/cert information. */ memset(v3_digest, 0, sizeof(v3_digest)); diff --git a/src/or/routerkeys.c b/src/or/routerkeys.c index 7295c1965..c6c689ecd 100644 --- a/src/or/routerkeys.c +++ b/src/or/routerkeys.c @@ -813,21 +813,10 @@ load_ed_keys(const or_options_t *options, time_t now) flags |= INIT_ED_KEY_TRY_ENCRYPTED;

/* Check/Create the key directory */ - cpd_check_t cpd_opts = CPD_CREATE; - if (options->DataDirectoryGroupReadable) - cpd_opts |= CPD_GROUP_READ; - if (check_private_dir(options->DataDirectory, cpd_opts, options->User)) { - log_err(LD_OR, "Can't create/check datadirectory %s", - options->DataDirectory); - goto err; - } - char *fname = get_datadir_fname("keys"); - if (check_private_dir(fname, CPD_CREATE, options->User) < 0) { - log_err(LD_OR, "Problem creating/checking key directory %s", fname); - tor_free(fname); - goto err; - } - tor_free(fname); + if (create_keys_directory(options) < 0) + return -1; + + char *fname; if (options->master_key_fname) { fname = tor_strdup(options->master_key_fname); flags |= INIT_ED_KEY_EXPLICIT_FNAME;