[pacman-dev] [PATCH 2/9] conf.c: use masks for siglevel inheritance
Andrew Gregory
andrew.gregory.8 at gmail.com
Sat Apr 26 19:56:55 EDT 2014
This will allow pacman to parse its config file in a single pass and
removes the need for the *_SET siglevels in alpm that were only required
for pacman's siglevel inheritance.
Signed-off-by: Andrew Gregory <andrew.gregory.8 at gmail.com>
---
lib/libalpm/alpm.h | 3 --
lib/libalpm/be_sync.c | 2 +-
src/pacman/conf.c | 93 ++++++++++++++++++++-------------------------------
src/pacman/conf.h | 5 +++
4 files changed, 43 insertions(+), 60 deletions(-)
diff --git a/lib/libalpm/alpm.h b/lib/libalpm/alpm.h
index b0adb95..448b8a0 100644
--- a/lib/libalpm/alpm.h
+++ b/lib/libalpm/alpm.h
@@ -115,9 +115,6 @@ typedef enum _alpm_siglevel_t {
ALPM_SIG_DATABASE_MARGINAL_OK = (1 << 12),
ALPM_SIG_DATABASE_UNKNOWN_OK = (1 << 13),
- ALPM_SIG_PACKAGE_SET = (1 << 27),
- ALPM_SIG_PACKAGE_TRUST_SET = (1 << 28),
-
ALPM_SIG_USE_DEFAULT = (1 << 31)
} alpm_siglevel_t;
diff --git a/lib/libalpm/be_sync.c b/lib/libalpm/be_sync.c
index df0b1b7..0a131d2 100644
--- a/lib/libalpm/be_sync.c
+++ b/lib/libalpm/be_sync.c
@@ -698,7 +698,7 @@ alpm_db_t *_alpm_db_register_sync(alpm_handle_t *handle, const char *treename,
_alpm_log(handle, ALPM_LOG_DEBUG, "registering sync database '%s'\n", treename);
#ifndef HAVE_LIBGPGME
- if((level &= ~ALPM_SIG_PACKAGE_SET) != 0 && level != ALPM_SIG_USE_DEFAULT) {
+ if(level != ALPM_SIG_USE_DEFAULT) {
RET_ERR(handle, ALPM_ERR_WRONG_ARGS, NULL);
}
#endif
diff --git a/src/pacman/conf.c b/src/pacman/conf.c
index bcfa12a..ab80373 100644
--- a/src/pacman/conf.c
+++ b/src/pacman/conf.c
@@ -319,12 +319,15 @@ int config_set_arch(const char *arch)
* @return 0 on success, 1 on any parsing error
*/
static int process_siglevel(alpm_list_t *values, alpm_siglevel_t *storage,
- const char *file, int linenum)
+ alpm_siglevel_t *storage_mask, const char *file, int linenum)
{
- alpm_siglevel_t level = *storage;
+ alpm_siglevel_t level = *storage, mask = *storage_mask;
alpm_list_t *i;
int ret = 0;
+#define SLSET(sl) do { level |= (sl); mask |= (sl); } while(0)
+#define SLUNSET(sl) do { level &= ~(sl); mask |= (sl); } while(0)
+
/* Collapse the option names into a single bitmasked value */
for(i = values; i; i = alpm_list_next(i)) {
const char *original = i->data, *value;
@@ -347,51 +350,40 @@ static int process_siglevel(alpm_list_t *values, alpm_siglevel_t *storage,
/* now parse out and store actual flag if it is valid */
if(strcmp(value, "Never") == 0) {
if(package) {
- level &= ~ALPM_SIG_PACKAGE;
- level |= ALPM_SIG_PACKAGE_SET;
+ SLUNSET(ALPM_SIG_PACKAGE);
}
if(database) {
- level &= ~ALPM_SIG_DATABASE;
+ SLUNSET(ALPM_SIG_DATABASE);
}
} else if(strcmp(value, "Optional") == 0) {
if(package) {
- level |= ALPM_SIG_PACKAGE;
- level |= ALPM_SIG_PACKAGE_OPTIONAL;
- level |= ALPM_SIG_PACKAGE_SET;
+ SLSET(ALPM_SIG_PACKAGE | ALPM_SIG_PACKAGE_OPTIONAL);
}
if(database) {
- level |= ALPM_SIG_DATABASE;
- level |= ALPM_SIG_DATABASE_OPTIONAL;
+ SLSET(ALPM_SIG_DATABASE | ALPM_SIG_DATABASE_OPTIONAL);
}
} else if(strcmp(value, "Required") == 0) {
if(package) {
- level |= ALPM_SIG_PACKAGE;
- level &= ~ALPM_SIG_PACKAGE_OPTIONAL;
- level |= ALPM_SIG_PACKAGE_SET;
+ SLSET(ALPM_SIG_PACKAGE);
+ SLUNSET(ALPM_SIG_PACKAGE_OPTIONAL);
}
if(database) {
- level |= ALPM_SIG_DATABASE;
- level &= ~ALPM_SIG_DATABASE_OPTIONAL;
+ SLSET(ALPM_SIG_DATABASE);
+ SLUNSET(ALPM_SIG_DATABASE_OPTIONAL);
}
} else if(strcmp(value, "TrustedOnly") == 0) {
if(package) {
- level &= ~ALPM_SIG_PACKAGE_MARGINAL_OK;
- level &= ~ALPM_SIG_PACKAGE_UNKNOWN_OK;
- level |= ALPM_SIG_PACKAGE_TRUST_SET;
+ SLUNSET(ALPM_SIG_PACKAGE_MARGINAL_OK | ALPM_SIG_PACKAGE_UNKNOWN_OK);
}
if(database) {
- level &= ~ALPM_SIG_DATABASE_MARGINAL_OK;
- level &= ~ALPM_SIG_DATABASE_UNKNOWN_OK;
+ SLUNSET(ALPM_SIG_DATABASE_MARGINAL_OK | ALPM_SIG_DATABASE_UNKNOWN_OK);
}
} else if(strcmp(value, "TrustAll") == 0) {
if(package) {
- level |= ALPM_SIG_PACKAGE_MARGINAL_OK;
- level |= ALPM_SIG_PACKAGE_UNKNOWN_OK;
- level |= ALPM_SIG_PACKAGE_TRUST_SET;
+ SLSET(ALPM_SIG_PACKAGE_MARGINAL_OK | ALPM_SIG_PACKAGE_UNKNOWN_OK);
}
if(database) {
- level |= ALPM_SIG_DATABASE_MARGINAL_OK;
- level |= ALPM_SIG_DATABASE_UNKNOWN_OK;
+ SLSET(ALPM_SIG_DATABASE_MARGINAL_OK | ALPM_SIG_DATABASE_UNKNOWN_OK);
}
} else {
pm_printf(ALPM_LOG_ERROR,
@@ -402,6 +394,9 @@ static int process_siglevel(alpm_list_t *values, alpm_siglevel_t *storage,
level &= ~ALPM_SIG_USE_DEFAULT;
}
+#undef SLSET
+#undef SLUNSET
+
/* ensure we have sig checking ability and are actually turning it on */
if(!(alpm_capabilities() & ALPM_CAPABILITY_SIGNATURES) &&
level & (ALPM_SIG_PACKAGE | ALPM_SIG_DATABASE)) {
@@ -413,32 +408,11 @@ static int process_siglevel(alpm_list_t *values, alpm_siglevel_t *storage,
if(!ret) {
*storage = level;
+ *storage_mask = mask;
}
return ret;
}
-/**
- * Merge the package entires of two signature verification levels.
- * @param base initial siglevel
- * @param over overridden siglevel, derived value is stored here
- */
-static void merge_siglevel(alpm_siglevel_t *base, alpm_siglevel_t *over)
-{
- alpm_siglevel_t level = *over;
- if(!(level & ALPM_SIG_USE_DEFAULT)) {
- if(!(level & ALPM_SIG_PACKAGE_SET)) {
- level |= *base & ALPM_SIG_PACKAGE;
- level |= *base & ALPM_SIG_PACKAGE_OPTIONAL;
- }
- if(!(level & ALPM_SIG_PACKAGE_TRUST_SET)) {
- level |= *base & ALPM_SIG_PACKAGE_MARGINAL_OK;
- level |= *base & ALPM_SIG_PACKAGE_UNKNOWN_OK;
- }
- }
-
- *over = level;
-}
-
static int process_cleanmethods(alpm_list_t *values,
const char *file, int linenum)
{
@@ -585,7 +559,8 @@ static int _parse_options(const char *key, char *value,
} else if(strcmp(key, "SigLevel") == 0) {
alpm_list_t *values = NULL;
setrepeatingoption(value, "SigLevel", &values);
- if(process_siglevel(values, &config->siglevel, file, linenum)) {
+ if(process_siglevel(values, &config->siglevel,
+ &config->siglevel_mask, file, linenum)) {
FREELIST(values);
return 1;
}
@@ -593,7 +568,8 @@ static int _parse_options(const char *key, char *value,
} else if(strcmp(key, "LocalFileSigLevel") == 0) {
alpm_list_t *values = NULL;
setrepeatingoption(value, "LocalFileSigLevel", &values);
- if(process_siglevel(values, &config->localfilesiglevel, file, linenum)) {
+ if(process_siglevel(values, &config->localfilesiglevel,
+ &config->localfilesiglevel_mask, file, linenum)) {
FREELIST(values);
return 1;
}
@@ -601,7 +577,8 @@ static int _parse_options(const char *key, char *value,
} else if(strcmp(key, "RemoteFileSigLevel") == 0) {
alpm_list_t *values = NULL;
setrepeatingoption(value, "RemoteFileSigLevel", &values);
- if(process_siglevel(values, &config->remotefilesiglevel, file, linenum)) {
+ if(process_siglevel(values, &config->remotefilesiglevel,
+ &config->remotefilesiglevel_mask, file, linenum)) {
FREELIST(values);
return 1;
}
@@ -727,8 +704,11 @@ static int setup_libalpm(void)
alpm_option_set_default_siglevel(handle, config->siglevel);
- merge_siglevel(&config->siglevel, &config->localfilesiglevel);
- merge_siglevel(&config->siglevel, &config->remotefilesiglevel);
+#define SLMERGE(l, m) if(m) { l = (l & (m)) | (config->siglevel & ~(m)); }
+ SLMERGE(config->localfilesiglevel, config->localfilesiglevel_mask);
+ SLMERGE(config->remotefilesiglevel, config->remotefilesiglevel_mask);
+#undef SLMERGE
+
alpm_option_set_local_file_siglevel(handle, config->localfilesiglevel);
alpm_option_set_remote_file_siglevel(handle, config->remotefilesiglevel);
@@ -822,10 +802,8 @@ static int _parse_repo(const char *key, char *value, const char *file,
alpm_list_t *values = NULL;
setrepeatingoption(value, "SigLevel", &values);
if(values) {
- if(repo->siglevel == ALPM_SIG_USE_DEFAULT) {
- repo->siglevel = config->siglevel;
- }
- ret = process_siglevel(values, &repo->siglevel, file, line);
+ ret = process_siglevel(values, &repo->siglevel,
+ &repo->siglevel_mask, file, line);
FREELIST(values);
}
}
@@ -871,6 +849,9 @@ static int finish_section(struct section_t *section)
}
/* if we are not looking at options sections only, register a db */
+#define SLMERGE(l, m) if(m) { l = (l & (m)) | (config->siglevel & ~(m)); }
+ SLMERGE(repo->siglevel, repo->siglevel_mask);
+#undef SLMERGE
db = alpm_register_syncdb(config->handle, repo->name, repo->siglevel);
if(db == NULL) {
pm_printf(ALPM_LOG_ERROR, _("could not register '%s' database (%s)\n"),
diff --git a/src/pacman/conf.h b/src/pacman/conf.h
index 97f006f..42484fb 100644
--- a/src/pacman/conf.h
+++ b/src/pacman/conf.h
@@ -39,6 +39,7 @@ typedef struct __config_repo_t {
alpm_list_t *servers;
alpm_db_usage_t usage;
alpm_siglevel_t siglevel;
+ alpm_siglevel_t siglevel_mask;
} config_repo_t;
typedef struct __config_t {
@@ -95,6 +96,10 @@ typedef struct __config_t {
alpm_siglevel_t localfilesiglevel;
alpm_siglevel_t remotefilesiglevel;
+ alpm_siglevel_t siglevel_mask;
+ alpm_siglevel_t localfilesiglevel_mask;
+ alpm_siglevel_t remotefilesiglevel_mask;
+
/* conf file options */
/* I Love Candy! */
unsigned short chomp;
--
1.9.2
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