1359 lines
39 KiB
C
1359 lines
39 KiB
C
/* SPDX-License-Identifier: LGPL-2.1-or-later */
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#include <errno.h>
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#include <limits.h>
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#include <stdint.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <sys/types.h>
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#include "alloc-util.h"
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#include "conf-files.h"
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#include "conf-parser.h"
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#include "def.h"
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#include "ether-addr-util.h"
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#include "extract-word.h"
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#include "fd-util.h"
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#include "fileio.h"
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#include "fs-util.h"
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#include "log.h"
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#include "macro.h"
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#include "missing_network.h"
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#include "nulstr-util.h"
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#include "parse-util.h"
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#include "path-util.h"
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#include "process-util.h"
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#include "rlimit-util.h"
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#include "sd-id128.h"
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#include "set.h"
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#include "signal-util.h"
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#include "socket-util.h"
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#include "string-util.h"
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#include "strv.h"
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#include "syslog-util.h"
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#include "time-util.h"
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#include "utf8.h"
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int config_item_table_lookup(
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const void *table,
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const char *section,
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const char *lvalue,
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ConfigParserCallback *func,
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int *ltype,
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void **data,
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void *userdata) {
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const ConfigTableItem *t;
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assert(table);
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assert(lvalue);
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assert(func);
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assert(ltype);
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assert(data);
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for (t = table; t->lvalue; t++) {
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if (!streq(lvalue, t->lvalue))
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continue;
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if (!streq_ptr(section, t->section))
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continue;
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*func = t->parse;
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*ltype = t->ltype;
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*data = t->data;
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return 1;
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}
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return 0;
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}
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int config_item_perf_lookup(
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const void *table,
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const char *section,
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const char *lvalue,
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ConfigParserCallback *func,
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int *ltype,
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void **data,
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void *userdata) {
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ConfigPerfItemLookup lookup = (ConfigPerfItemLookup) table;
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const ConfigPerfItem *p;
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assert(table);
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assert(lvalue);
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assert(func);
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assert(ltype);
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assert(data);
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if (section) {
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const char *key;
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key = strjoina(section, ".", lvalue);
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p = lookup(key, strlen(key));
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} else
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p = lookup(lvalue, strlen(lvalue));
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if (!p)
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return 0;
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*func = p->parse;
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*ltype = p->ltype;
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*data = (uint8_t*) userdata + p->offset;
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return 1;
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}
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/* Run the user supplied parser for an assignment */
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static int next_assignment(
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const char *unit,
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const char *filename,
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unsigned line,
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ConfigItemLookup lookup,
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const void *table,
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const char *section,
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unsigned section_line,
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const char *lvalue,
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const char *rvalue,
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ConfigParseFlags flags,
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void *userdata) {
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ConfigParserCallback func = NULL;
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int ltype = 0;
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void *data = NULL;
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int r;
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assert(filename);
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assert(line > 0);
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assert(lookup);
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assert(lvalue);
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assert(rvalue);
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r = lookup(table, section, lvalue, &func, <ype, &data, userdata);
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if (r < 0)
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return r;
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if (r > 0) {
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if (func)
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return func(unit, filename, line, section, section_line,
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lvalue, ltype, rvalue, data, userdata);
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return 0;
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}
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/* Warn about unknown non-extension fields. */
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if (!(flags & CONFIG_PARSE_RELAXED) && !startswith(lvalue, "X-"))
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log_syntax(unit, LOG_WARNING, filename, line, 0,
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"Unknown key name '%s' in section '%s', ignoring.", lvalue, section);
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return 0;
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}
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/* Parse a single logical line */
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static int parse_line(
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const char* unit,
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const char *filename,
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unsigned line,
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const char *sections,
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ConfigItemLookup lookup,
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const void *table,
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ConfigParseFlags flags,
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char **section,
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unsigned *section_line,
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bool *section_ignored,
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char *l,
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void *userdata) {
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char *e;
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assert(filename);
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assert(line > 0);
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assert(lookup);
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assert(l);
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l = strstrip(l);
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if (!*l)
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return 0;
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if (*l == '\n')
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return 0;
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if (!utf8_is_valid(l))
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return log_syntax_invalid_utf8(unit, LOG_WARNING, filename, line, l);
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if (*l == '[') {
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size_t k;
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char *n;
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k = strlen(l);
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assert(k > 0);
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if (l[k-1] != ']')
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return log_syntax(unit, LOG_ERR, filename, line, SYNTHETIC_ERRNO(EBADMSG), "Invalid section header '%s'", l);
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n = strndup(l+1, k-2);
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if (!n)
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return log_oom();
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if (sections && !nulstr_contains(sections, n)) {
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bool ignore = flags & CONFIG_PARSE_RELAXED;
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const char *t;
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ignore = ignore || startswith(n, "X-");
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if (!ignore)
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NULSTR_FOREACH(t, sections)
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if (streq_ptr(n, startswith(t, "-"))) {
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ignore = true;
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break;
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}
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if (!ignore)
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log_syntax(unit, LOG_WARNING, filename, line, 0, "Unknown section '%s'. Ignoring.", n);
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free(n);
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*section = mfree(*section);
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*section_line = 0;
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*section_ignored = true;
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} else {
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free_and_replace(*section, n);
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*section_line = line;
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*section_ignored = false;
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}
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return 0;
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}
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if (sections && !*section) {
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if (!(flags & CONFIG_PARSE_RELAXED) && !*section_ignored)
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log_syntax(unit, LOG_WARNING, filename, line, 0, "Assignment outside of section. Ignoring.");
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return 0;
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}
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e = strchr(l, '=');
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if (!e)
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return log_syntax(unit, LOG_WARNING, filename, line, 0,
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"Missing '=', ignoring line.");
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if (e == l)
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return log_syntax(unit, LOG_WARNING, filename, line, 0,
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"Missing key name before '=', ignoring line.");
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*e = 0;
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e++;
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return next_assignment(unit,
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filename,
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line,
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lookup,
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table,
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*section,
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*section_line,
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strstrip(l),
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strstrip(e),
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flags,
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userdata);
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}
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/* Go through the file and parse each line */
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int config_parse(
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const char *unit,
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const char *filename,
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FILE *f,
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const char *sections,
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ConfigItemLookup lookup,
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const void *table,
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ConfigParseFlags flags,
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void *userdata,
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usec_t *ret_mtime) {
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_cleanup_free_ char *section = NULL, *continuation = NULL;
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_cleanup_fclose_ FILE *ours = NULL;
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unsigned line = 0, section_line = 0;
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bool section_ignored = false, bom_seen = false;
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int r, fd;
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usec_t mtime;
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assert(filename);
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assert(lookup);
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if (!f) {
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f = ours = fopen(filename, "re");
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if (!f) {
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/* Only log on request, except for ENOENT,
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* since we return 0 to the caller. */
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if ((flags & CONFIG_PARSE_WARN) || errno == ENOENT)
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log_full_errno(errno == ENOENT ? LOG_DEBUG : LOG_ERR, errno,
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"Failed to open configuration file '%s': %m", filename);
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return errno == ENOENT ? 0 : -errno;
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}
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}
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fd = fileno(f);
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if (fd >= 0) { /* stream might not have an fd, let's be careful hence */
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struct stat st;
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if (fstat(fd, &st) < 0)
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return log_full_errno(FLAGS_SET(flags, CONFIG_PARSE_WARN) ? LOG_ERR : LOG_DEBUG, errno,
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"Failed to fstat(%s): %m", filename);
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(void) stat_warn_permissions(filename, &st);
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mtime = timespec_load(&st.st_mtim);
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}
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for (;;) {
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_cleanup_free_ char *buf = NULL;
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bool escaped = false;
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char *l, *p, *e;
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r = read_line(f, LONG_LINE_MAX, &buf);
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if (r == 0)
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break;
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if (r == -ENOBUFS) {
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if (flags & CONFIG_PARSE_WARN)
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log_error_errno(r, "%s:%u: Line too long", filename, line);
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return r;
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}
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if (r < 0) {
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if (FLAGS_SET(flags, CONFIG_PARSE_WARN))
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log_error_errno(r, "%s:%u: Error while reading configuration file: %m", filename, line);
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return r;
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}
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line++;
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l = skip_leading_chars(buf, WHITESPACE);
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if (*l != '\0' && strchr(COMMENTS, *l))
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continue;
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l = buf;
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if (!bom_seen) {
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char *q;
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q = startswith(buf, UTF8_BYTE_ORDER_MARK);
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if (q) {
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l = q;
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bom_seen = true;
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}
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}
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if (continuation) {
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if (strlen(continuation) + strlen(l) > LONG_LINE_MAX) {
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if (flags & CONFIG_PARSE_WARN)
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log_error("%s:%u: Continuation line too long", filename, line);
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return -ENOBUFS;
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}
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if (!strextend(&continuation, l)) {
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if (flags & CONFIG_PARSE_WARN)
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log_oom();
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return -ENOMEM;
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}
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p = continuation;
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} else
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p = l;
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for (e = p; *e; e++) {
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if (escaped)
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escaped = false;
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else if (*e == '\\')
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escaped = true;
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}
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if (escaped) {
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*(e-1) = ' ';
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if (!continuation) {
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continuation = strdup(l);
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if (!continuation) {
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if (flags & CONFIG_PARSE_WARN)
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log_oom();
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return -ENOMEM;
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}
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}
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continue;
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}
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r = parse_line(unit,
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filename,
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line,
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sections,
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lookup,
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table,
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flags,
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§ion,
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§ion_line,
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§ion_ignored,
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p,
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userdata);
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if (r < 0) {
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if (flags & CONFIG_PARSE_WARN)
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log_warning_errno(r, "%s:%u: Failed to parse file: %m", filename, line);
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return r;
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}
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continuation = mfree(continuation);
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}
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if (continuation) {
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r = parse_line(unit,
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filename,
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++line,
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sections,
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lookup,
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table,
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flags,
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§ion,
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§ion_line,
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§ion_ignored,
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continuation,
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userdata);
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if (r < 0) {
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if (flags & CONFIG_PARSE_WARN)
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log_warning_errno(r, "%s:%u: Failed to parse file: %m", filename, line);
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return r;
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}
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}
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if (ret_mtime)
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*ret_mtime = mtime;
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return 0;
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}
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static int config_parse_many_files(
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const char *conf_file,
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char **files,
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const char *sections,
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ConfigItemLookup lookup,
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const void *table,
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ConfigParseFlags flags,
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void *userdata,
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usec_t *ret_mtime) {
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usec_t mtime = 0;
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char **fn;
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int r;
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if (conf_file) {
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r = config_parse(NULL, conf_file, NULL, sections, lookup, table, flags, userdata, &mtime);
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if (r < 0)
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return r;
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}
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STRV_FOREACH(fn, files) {
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usec_t t;
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r = config_parse(NULL, *fn, NULL, sections, lookup, table, flags, userdata, &t);
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if (r < 0)
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return r;
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if (t > mtime) /* Find the newest */
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mtime = t;
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}
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if (ret_mtime)
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*ret_mtime = mtime;
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return 0;
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}
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/* Parse each config file in the directories specified as nulstr. */
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int config_parse_many_nulstr(
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const char *conf_file,
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const char *conf_file_dirs,
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const char *sections,
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ConfigItemLookup lookup,
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const void *table,
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ConfigParseFlags flags,
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void *userdata,
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usec_t *ret_mtime) {
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_cleanup_strv_free_ char **files = NULL;
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int r;
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r = conf_files_list_nulstr(&files, ".conf", NULL, 0, conf_file_dirs);
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if (r < 0)
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return r;
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return config_parse_many_files(conf_file, files, sections, lookup, table, flags, userdata, ret_mtime);
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}
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/* Parse each config file in the directories specified as strv. */
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int config_parse_many(
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const char *conf_file,
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const char* const* conf_file_dirs,
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const char *dropin_dirname,
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const char *sections,
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ConfigItemLookup lookup,
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const void *table,
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ConfigParseFlags flags,
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void *userdata,
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usec_t *ret_mtime) {
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_cleanup_strv_free_ char **dropin_dirs = NULL;
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_cleanup_strv_free_ char **files = NULL;
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const char *suffix;
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int r;
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suffix = strjoina("/", dropin_dirname);
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r = strv_extend_strv_concat(&dropin_dirs, (char**) conf_file_dirs, suffix);
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if (r < 0)
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return r;
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r = conf_files_list_strv(&files, ".conf", NULL, 0, (const char* const*) dropin_dirs);
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if (r < 0)
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return r;
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return config_parse_many_files(conf_file, files, sections, lookup, table, flags, userdata, ret_mtime);
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}
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#define DEFINE_PARSER(type, vartype, conv_func) \
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DEFINE_CONFIG_PARSE_PTR(config_parse_##type, conv_func, vartype, "Failed to parse " #type " value")
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DEFINE_PARSER(int, int, safe_atoi);
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DEFINE_PARSER(long, long, safe_atoli);
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DEFINE_PARSER(uint8, uint8_t, safe_atou8);
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DEFINE_PARSER(uint16, uint16_t, safe_atou16);
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DEFINE_PARSER(uint32, uint32_t, safe_atou32);
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DEFINE_PARSER(int32, int32_t, safe_atoi32);
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DEFINE_PARSER(uint64, uint64_t, safe_atou64);
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DEFINE_PARSER(unsigned, unsigned, safe_atou);
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DEFINE_PARSER(double, double, safe_atod);
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DEFINE_PARSER(nsec, nsec_t, parse_nsec);
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DEFINE_PARSER(sec, usec_t, parse_sec);
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DEFINE_PARSER(sec_def_infinity, usec_t, parse_sec_def_infinity);
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DEFINE_PARSER(mode, mode_t, parse_mode);
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int config_parse_iec_size(
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const char* unit,
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const char *filename,
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unsigned line,
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const char *section,
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unsigned section_line,
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const char *lvalue,
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int ltype,
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const char *rvalue,
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void *data,
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void *userdata) {
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size_t *sz = data;
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uint64_t v;
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int r;
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assert(filename);
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assert(lvalue);
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assert(rvalue);
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assert(data);
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r = parse_size(rvalue, 1024, &v);
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if (r >= 0 && (uint64_t) (size_t) v != v)
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r = -ERANGE;
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if (r < 0) {
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log_syntax(unit, LOG_WARNING, filename, line, r, "Failed to parse size value '%s', ignoring: %m", rvalue);
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return 0;
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}
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*sz = (size_t) v;
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return 0;
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}
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int config_parse_si_uint64(
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const char* unit,
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const char *filename,
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unsigned line,
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const char *section,
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unsigned section_line,
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const char *lvalue,
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int ltype,
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const char *rvalue,
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void *data,
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void *userdata) {
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uint64_t *sz = data;
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int r;
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|
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assert(filename);
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assert(lvalue);
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assert(rvalue);
|
|
assert(data);
|
|
|
|
r = parse_size(rvalue, 1000, sz);
|
|
if (r < 0)
|
|
log_syntax(unit, LOG_WARNING, filename, line, r, "Failed to parse size value '%s', ignoring: %m", rvalue);
|
|
|
|
return 0;
|
|
}
|
|
|
|
int config_parse_iec_uint64(
|
|
const char* unit,
|
|
const char *filename,
|
|
unsigned line,
|
|
const char *section,
|
|
unsigned section_line,
|
|
const char *lvalue,
|
|
int ltype,
|
|
const char *rvalue,
|
|
void *data,
|
|
void *userdata) {
|
|
|
|
uint64_t *bytes = data;
|
|
int r;
|
|
|
|
assert(filename);
|
|
assert(lvalue);
|
|
assert(rvalue);
|
|
assert(data);
|
|
|
|
r = parse_size(rvalue, 1024, bytes);
|
|
if (r < 0)
|
|
log_syntax(unit, LOG_WARNING, filename, line, r, "Failed to parse size value, ignoring: %s", rvalue);
|
|
|
|
return 0;
|
|
}
|
|
|
|
int config_parse_bool(
|
|
const char* unit,
|
|
const char *filename,
|
|
unsigned line,
|
|
const char *section,
|
|
unsigned section_line,
|
|
const char *lvalue,
|
|
int ltype,
|
|
const char *rvalue,
|
|
void *data,
|
|
void *userdata) {
|
|
|
|
int k;
|
|
bool *b = data;
|
|
bool fatal = ltype;
|
|
|
|
assert(filename);
|
|
assert(lvalue);
|
|
assert(rvalue);
|
|
assert(data);
|
|
|
|
k = parse_boolean(rvalue);
|
|
if (k < 0) {
|
|
log_syntax(unit, fatal ? LOG_ERR : LOG_WARNING, filename, line, k,
|
|
"Failed to parse boolean value%s: %s",
|
|
fatal ? "" : ", ignoring", rvalue);
|
|
return fatal ? -ENOEXEC : 0;
|
|
}
|
|
|
|
*b = k;
|
|
return 0;
|
|
}
|
|
|
|
int config_parse_id128(
|
|
const char *unit,
|
|
const char *filename,
|
|
unsigned line,
|
|
const char *section,
|
|
unsigned section_line,
|
|
const char *lvalue,
|
|
int ltype,
|
|
const char *rvalue,
|
|
void *data,
|
|
void *userdata) {
|
|
|
|
sd_id128_t t, *result = data;
|
|
int r;
|
|
|
|
assert(filename);
|
|
assert(lvalue);
|
|
assert(rvalue);
|
|
|
|
r = sd_id128_from_string(rvalue, &t);
|
|
if (r < 0) {
|
|
log_syntax(unit, LOG_WARNING, filename, line, r, "Failed to parse 128bit ID/UUID, ignoring: %s", rvalue);
|
|
return 0;
|
|
}
|
|
|
|
if (sd_id128_is_null(t)) {
|
|
log_syntax(unit, LOG_WARNING, filename, line, 0, "128bit ID/UUID is all 0, ignoring: %s", rvalue);
|
|
return 0;
|
|
}
|
|
|
|
*result = t;
|
|
return 0;
|
|
}
|
|
|
|
int config_parse_tristate(
|
|
const char* unit,
|
|
const char *filename,
|
|
unsigned line,
|
|
const char *section,
|
|
unsigned section_line,
|
|
const char *lvalue,
|
|
int ltype,
|
|
const char *rvalue,
|
|
void *data,
|
|
void *userdata) {
|
|
|
|
int k, *t = data;
|
|
|
|
assert(filename);
|
|
assert(lvalue);
|
|
assert(rvalue);
|
|
assert(data);
|
|
|
|
/* A tristate is pretty much a boolean, except that it can
|
|
* also take the special value -1, indicating "uninitialized",
|
|
* much like NULL is for a pointer type. */
|
|
|
|
k = parse_boolean(rvalue);
|
|
if (k < 0) {
|
|
log_syntax(unit, LOG_WARNING, filename, line, k, "Failed to parse boolean value, ignoring: %s", rvalue);
|
|
return 0;
|
|
}
|
|
|
|
*t = k;
|
|
return 0;
|
|
}
|
|
|
|
int config_parse_string(
|
|
const char *unit,
|
|
const char *filename,
|
|
unsigned line,
|
|
const char *section,
|
|
unsigned section_line,
|
|
const char *lvalue,
|
|
int ltype,
|
|
const char *rvalue,
|
|
void *data,
|
|
void *userdata) {
|
|
|
|
char **s = data;
|
|
|
|
assert(filename);
|
|
assert(lvalue);
|
|
assert(rvalue);
|
|
assert(data);
|
|
|
|
if (free_and_strdup(s, empty_to_null(rvalue)) < 0)
|
|
return log_oom();
|
|
|
|
return 0;
|
|
}
|
|
|
|
int config_parse_path(
|
|
const char *unit,
|
|
const char *filename,
|
|
unsigned line,
|
|
const char *section,
|
|
unsigned section_line,
|
|
const char *lvalue,
|
|
int ltype,
|
|
const char *rvalue,
|
|
void *data,
|
|
void *userdata) {
|
|
|
|
_cleanup_free_ char *n = NULL;
|
|
bool fatal = ltype;
|
|
char **s = data;
|
|
int r;
|
|
|
|
assert(filename);
|
|
assert(lvalue);
|
|
assert(rvalue);
|
|
assert(data);
|
|
|
|
if (isempty(rvalue))
|
|
goto finalize;
|
|
|
|
n = strdup(rvalue);
|
|
if (!n)
|
|
return log_oom();
|
|
|
|
r = path_simplify_and_warn(n, PATH_CHECK_ABSOLUTE | (fatal ? PATH_CHECK_FATAL : 0), unit, filename, line, lvalue);
|
|
if (r < 0)
|
|
return fatal ? -ENOEXEC : 0;
|
|
|
|
finalize:
|
|
return free_and_replace(*s, n);
|
|
}
|
|
|
|
int config_parse_strv(
|
|
const char *unit,
|
|
const char *filename,
|
|
unsigned line,
|
|
const char *section,
|
|
unsigned section_line,
|
|
const char *lvalue,
|
|
int ltype,
|
|
const char *rvalue,
|
|
void *data,
|
|
void *userdata) {
|
|
|
|
char ***sv = data;
|
|
int r;
|
|
|
|
assert(filename);
|
|
assert(lvalue);
|
|
assert(rvalue);
|
|
assert(data);
|
|
|
|
if (isempty(rvalue)) {
|
|
*sv = strv_free(*sv);
|
|
return 0;
|
|
}
|
|
|
|
for (const char *p = rvalue;;) {
|
|
char *word = NULL;
|
|
|
|
r = extract_first_word(&p, &word, NULL, EXTRACT_UNQUOTE|EXTRACT_RETAIN_ESCAPE);
|
|
if (r == 0)
|
|
return 0;
|
|
if (r == -ENOMEM)
|
|
return log_oom();
|
|
if (r < 0) {
|
|
log_syntax(unit, LOG_WARNING, filename, line, r, "Invalid syntax, ignoring: %s", rvalue);
|
|
return 0;
|
|
}
|
|
|
|
r = strv_consume(sv, word);
|
|
if (r < 0)
|
|
return log_oom();
|
|
}
|
|
}
|
|
|
|
int config_parse_warn_compat(
|
|
const char *unit,
|
|
const char *filename,
|
|
unsigned line,
|
|
const char *section,
|
|
unsigned section_line,
|
|
const char *lvalue,
|
|
int ltype,
|
|
const char *rvalue,
|
|
void *data,
|
|
void *userdata) {
|
|
|
|
Disabled reason = ltype;
|
|
|
|
switch(reason) {
|
|
|
|
case DISABLED_CONFIGURATION:
|
|
log_syntax(unit, LOG_DEBUG, filename, line, 0,
|
|
"Support for option %s= has been disabled at compile time and it is ignored", lvalue);
|
|
break;
|
|
|
|
case DISABLED_LEGACY:
|
|
log_syntax(unit, LOG_INFO, filename, line, 0,
|
|
"Support for option %s= has been removed and it is ignored", lvalue);
|
|
break;
|
|
|
|
case DISABLED_EXPERIMENTAL:
|
|
log_syntax(unit, LOG_INFO, filename, line, 0,
|
|
"Support for option %s= has not yet been enabled and it is ignored", lvalue);
|
|
break;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
int config_parse_log_facility(
|
|
const char *unit,
|
|
const char *filename,
|
|
unsigned line,
|
|
const char *section,
|
|
unsigned section_line,
|
|
const char *lvalue,
|
|
int ltype,
|
|
const char *rvalue,
|
|
void *data,
|
|
void *userdata) {
|
|
|
|
int *o = data, x;
|
|
|
|
assert(filename);
|
|
assert(lvalue);
|
|
assert(rvalue);
|
|
assert(data);
|
|
|
|
x = log_facility_unshifted_from_string(rvalue);
|
|
if (x < 0) {
|
|
log_syntax(unit, LOG_WARNING, filename, line, 0, "Failed to parse log facility, ignoring: %s", rvalue);
|
|
return 0;
|
|
}
|
|
|
|
*o = (x << 3) | LOG_PRI(*o);
|
|
|
|
return 0;
|
|
}
|
|
|
|
int config_parse_log_level(
|
|
const char *unit,
|
|
const char *filename,
|
|
unsigned line,
|
|
const char *section,
|
|
unsigned section_line,
|
|
const char *lvalue,
|
|
int ltype,
|
|
const char *rvalue,
|
|
void *data,
|
|
void *userdata) {
|
|
|
|
int *o = data, x;
|
|
|
|
assert(filename);
|
|
assert(lvalue);
|
|
assert(rvalue);
|
|
assert(data);
|
|
|
|
x = log_level_from_string(rvalue);
|
|
if (x < 0) {
|
|
log_syntax(unit, LOG_WARNING, filename, line, 0, "Failed to parse log level, ignoring: %s", rvalue);
|
|
return 0;
|
|
}
|
|
|
|
if (*o < 0) /* if it wasn't initialized so far, assume zero facility */
|
|
*o = x;
|
|
else
|
|
*o = (*o & LOG_FACMASK) | x;
|
|
|
|
return 0;
|
|
}
|
|
|
|
int config_parse_signal(
|
|
const char *unit,
|
|
const char *filename,
|
|
unsigned line,
|
|
const char *section,
|
|
unsigned section_line,
|
|
const char *lvalue,
|
|
int ltype,
|
|
const char *rvalue,
|
|
void *data,
|
|
void *userdata) {
|
|
|
|
int *sig = data, r;
|
|
|
|
assert(filename);
|
|
assert(lvalue);
|
|
assert(rvalue);
|
|
assert(sig);
|
|
|
|
r = signal_from_string(rvalue);
|
|
if (r <= 0) {
|
|
log_syntax(unit, LOG_WARNING, filename, line, 0, "Failed to parse signal name, ignoring: %s", rvalue);
|
|
return 0;
|
|
}
|
|
|
|
*sig = r;
|
|
return 0;
|
|
}
|
|
|
|
int config_parse_personality(
|
|
const char *unit,
|
|
const char *filename,
|
|
unsigned line,
|
|
const char *section,
|
|
unsigned section_line,
|
|
const char *lvalue,
|
|
int ltype,
|
|
const char *rvalue,
|
|
void *data,
|
|
void *userdata) {
|
|
|
|
unsigned long *personality = data, p;
|
|
|
|
assert(filename);
|
|
assert(lvalue);
|
|
assert(rvalue);
|
|
assert(personality);
|
|
|
|
if (isempty(rvalue))
|
|
p = PERSONALITY_INVALID;
|
|
else {
|
|
p = personality_from_string(rvalue);
|
|
if (p == PERSONALITY_INVALID) {
|
|
log_syntax(unit, LOG_WARNING, filename, line, 0, "Failed to parse personality, ignoring: %s", rvalue);
|
|
return 0;
|
|
}
|
|
}
|
|
|
|
*personality = p;
|
|
return 0;
|
|
}
|
|
|
|
int config_parse_ifname(
|
|
const char *unit,
|
|
const char *filename,
|
|
unsigned line,
|
|
const char *section,
|
|
unsigned section_line,
|
|
const char *lvalue,
|
|
int ltype,
|
|
const char *rvalue,
|
|
void *data,
|
|
void *userdata) {
|
|
|
|
char **s = data;
|
|
int r;
|
|
|
|
assert(filename);
|
|
assert(lvalue);
|
|
assert(rvalue);
|
|
assert(data);
|
|
|
|
if (isempty(rvalue)) {
|
|
*s = mfree(*s);
|
|
return 0;
|
|
}
|
|
|
|
if (!ifname_valid(rvalue)) {
|
|
log_syntax(unit, LOG_WARNING, filename, line, 0, "Interface name is not valid or too long, ignoring assignment: %s", rvalue);
|
|
return 0;
|
|
}
|
|
|
|
r = free_and_strdup(s, rvalue);
|
|
if (r < 0)
|
|
return log_oom();
|
|
|
|
return 0;
|
|
}
|
|
|
|
int config_parse_ifnames(
|
|
const char *unit,
|
|
const char *filename,
|
|
unsigned line,
|
|
const char *section,
|
|
unsigned section_line,
|
|
const char *lvalue,
|
|
int ltype,
|
|
const char *rvalue,
|
|
void *data,
|
|
void *userdata) {
|
|
|
|
_cleanup_strv_free_ char **names = NULL;
|
|
char ***s = data;
|
|
int r;
|
|
|
|
assert(filename);
|
|
assert(lvalue);
|
|
assert(rvalue);
|
|
assert(data);
|
|
|
|
if (isempty(rvalue)) {
|
|
*s = strv_free(*s);
|
|
return 0;
|
|
}
|
|
|
|
for (const char *p = rvalue;;) {
|
|
_cleanup_free_ char *word = NULL;
|
|
|
|
r = extract_first_word(&p, &word, NULL, 0);
|
|
if (r == -ENOMEM)
|
|
return log_oom();
|
|
if (r < 0) {
|
|
log_syntax(unit, LOG_WARNING, filename, line, r,
|
|
"Failed to extract interface name, ignoring assignment: %s",
|
|
rvalue);
|
|
return 0;
|
|
}
|
|
if (r == 0)
|
|
break;
|
|
|
|
if (!ifname_valid_full(word, ltype)) {
|
|
log_syntax(unit, LOG_WARNING, filename, line, 0,
|
|
"Interface name is not valid or too long, ignoring assignment: %s",
|
|
word);
|
|
continue;
|
|
}
|
|
|
|
r = strv_consume(&names, TAKE_PTR(word));
|
|
if (r < 0)
|
|
return log_oom();
|
|
}
|
|
|
|
r = strv_extend_strv(s, names, true);
|
|
if (r < 0)
|
|
return log_oom();
|
|
|
|
return 0;
|
|
}
|
|
|
|
int config_parse_ip_port(
|
|
const char *unit,
|
|
const char *filename,
|
|
unsigned line,
|
|
const char *section,
|
|
unsigned section_line,
|
|
const char *lvalue,
|
|
int ltype,
|
|
const char *rvalue,
|
|
void *data,
|
|
void *userdata) {
|
|
|
|
uint16_t *s = data;
|
|
uint16_t port;
|
|
int r;
|
|
|
|
assert(filename);
|
|
assert(lvalue);
|
|
assert(rvalue);
|
|
assert(data);
|
|
|
|
if (isempty(rvalue)) {
|
|
*s = 0;
|
|
return 0;
|
|
}
|
|
|
|
r = parse_ip_port(rvalue, &port);
|
|
if (r < 0) {
|
|
log_syntax(unit, LOG_WARNING, filename, line, r, "Failed to parse port '%s'.", rvalue);
|
|
return 0;
|
|
}
|
|
|
|
*s = port;
|
|
|
|
return 0;
|
|
}
|
|
|
|
int config_parse_mtu(
|
|
const char *unit,
|
|
const char *filename,
|
|
unsigned line,
|
|
const char *section,
|
|
unsigned section_line,
|
|
const char *lvalue,
|
|
int ltype,
|
|
const char *rvalue,
|
|
void *data,
|
|
void *userdata) {
|
|
|
|
uint32_t *mtu = data;
|
|
int r;
|
|
|
|
assert(rvalue);
|
|
assert(mtu);
|
|
|
|
r = parse_mtu(ltype, rvalue, mtu);
|
|
if (r == -ERANGE) {
|
|
log_syntax(unit, LOG_WARNING, filename, line, r,
|
|
"Maximum transfer unit (MTU) value out of range. Permitted range is %" PRIu32 "…%" PRIu32 ", ignoring: %s",
|
|
(uint32_t) (ltype == AF_INET6 ? IPV6_MIN_MTU : IPV4_MIN_MTU), (uint32_t) UINT32_MAX,
|
|
rvalue);
|
|
return 0;
|
|
}
|
|
if (r < 0) {
|
|
log_syntax(unit, LOG_WARNING, filename, line, r,
|
|
"Failed to parse MTU value '%s', ignoring: %m", rvalue);
|
|
return 0;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
int config_parse_rlimit(
|
|
const char *unit,
|
|
const char *filename,
|
|
unsigned line,
|
|
const char *section,
|
|
unsigned section_line,
|
|
const char *lvalue,
|
|
int ltype,
|
|
const char *rvalue,
|
|
void *data,
|
|
void *userdata) {
|
|
|
|
struct rlimit **rl = data, d = {};
|
|
int r;
|
|
|
|
assert(rvalue);
|
|
assert(rl);
|
|
|
|
r = rlimit_parse(ltype, rvalue, &d);
|
|
if (r == -EILSEQ) {
|
|
log_syntax(unit, LOG_WARNING, filename, line, r, "Soft resource limit chosen higher than hard limit, ignoring: %s", rvalue);
|
|
return 0;
|
|
}
|
|
if (r < 0) {
|
|
log_syntax(unit, LOG_WARNING, filename, line, r, "Failed to parse resource value, ignoring: %s", rvalue);
|
|
return 0;
|
|
}
|
|
|
|
if (rl[ltype])
|
|
*rl[ltype] = d;
|
|
else {
|
|
rl[ltype] = newdup(struct rlimit, &d, 1);
|
|
if (!rl[ltype])
|
|
return log_oom();
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
int config_parse_permille(
|
|
const char* unit,
|
|
const char *filename,
|
|
unsigned line,
|
|
const char *section,
|
|
unsigned section_line,
|
|
const char *lvalue,
|
|
int ltype,
|
|
const char *rvalue,
|
|
void *data,
|
|
void *userdata) {
|
|
|
|
unsigned *permille = data;
|
|
int r;
|
|
|
|
assert(filename);
|
|
assert(lvalue);
|
|
assert(rvalue);
|
|
assert(permille);
|
|
|
|
r = parse_permille(rvalue);
|
|
if (r < 0) {
|
|
log_syntax(unit, LOG_WARNING, filename, line, r,
|
|
"Failed to parse permille value, ignoring: %s", rvalue);
|
|
return 0;
|
|
}
|
|
|
|
*permille = (unsigned) r;
|
|
|
|
return 0;
|
|
}
|
|
|
|
int config_parse_vlanprotocol(
|
|
const char* unit,
|
|
const char *filename,
|
|
unsigned line,
|
|
const char *section,
|
|
unsigned section_line,
|
|
const char *lvalue,
|
|
int ltype,
|
|
const char *rvalue,
|
|
void *data,
|
|
void *userdata) {
|
|
|
|
int *vlan_protocol = data;
|
|
|
|
assert(filename);
|
|
assert(lvalue);
|
|
|
|
if (isempty(rvalue)) {
|
|
*vlan_protocol = -1;
|
|
return 0;
|
|
}
|
|
|
|
if (STR_IN_SET(rvalue, "802.1ad", "802.1AD"))
|
|
*vlan_protocol = ETH_P_8021AD;
|
|
else if (STR_IN_SET(rvalue, "802.1q", "802.1Q"))
|
|
*vlan_protocol = ETH_P_8021Q;
|
|
else {
|
|
log_syntax(unit, LOG_WARNING, filename, line, 0,
|
|
"Failed to parse VLAN protocol value, ignoring: %s", rvalue);
|
|
return 0;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
int config_parse_hwaddr(
|
|
const char *unit,
|
|
const char *filename,
|
|
unsigned line,
|
|
const char *section,
|
|
unsigned section_line,
|
|
const char *lvalue,
|
|
int ltype,
|
|
const char *rvalue,
|
|
void *data,
|
|
void *userdata) {
|
|
|
|
_cleanup_free_ struct ether_addr *n = NULL;
|
|
struct ether_addr **hwaddr = data;
|
|
int r;
|
|
|
|
assert(filename);
|
|
assert(lvalue);
|
|
assert(rvalue);
|
|
assert(data);
|
|
|
|
if (isempty(rvalue)) {
|
|
*hwaddr = mfree(*hwaddr);
|
|
return 0;
|
|
}
|
|
|
|
n = new0(struct ether_addr, 1);
|
|
if (!n)
|
|
return log_oom();
|
|
|
|
r = ether_addr_from_string(rvalue, n);
|
|
if (r < 0) {
|
|
log_syntax(unit, LOG_WARNING, filename, line, r,
|
|
"Not a valid MAC address, ignoring assignment: %s", rvalue);
|
|
return 0;
|
|
}
|
|
|
|
free_and_replace(*hwaddr, n);
|
|
|
|
return 0;
|
|
}
|
|
|
|
int config_parse_hwaddrs(
|
|
const char *unit,
|
|
const char *filename,
|
|
unsigned line,
|
|
const char *section,
|
|
unsigned section_line,
|
|
const char *lvalue,
|
|
int ltype,
|
|
const char *rvalue,
|
|
void *data,
|
|
void *userdata) {
|
|
|
|
Set **hwaddrs = data;
|
|
int r;
|
|
|
|
assert(filename);
|
|
assert(lvalue);
|
|
assert(rvalue);
|
|
assert(data);
|
|
|
|
if (isempty(rvalue)) {
|
|
/* Empty assignment resets the list */
|
|
*hwaddrs = set_free_free(*hwaddrs);
|
|
return 0;
|
|
}
|
|
|
|
for (const char *p = rvalue;;) {
|
|
_cleanup_free_ char *word = NULL;
|
|
_cleanup_free_ struct ether_addr *n = NULL;
|
|
|
|
r = extract_first_word(&p, &word, NULL, 0);
|
|
if (r == 0)
|
|
return 0;
|
|
if (r == -ENOMEM)
|
|
return log_oom();
|
|
if (r < 0) {
|
|
log_syntax(unit, LOG_WARNING, filename, line, r,
|
|
"Invalid syntax, ignoring: %s", rvalue);
|
|
return 0;
|
|
}
|
|
|
|
n = new(struct ether_addr, 1);
|
|
if (!n)
|
|
return log_oom();
|
|
|
|
r = ether_addr_from_string(word, n);
|
|
if (r < 0) {
|
|
log_syntax(unit, LOG_WARNING, filename, line, r,
|
|
"Not a valid MAC address, ignoring: %s", word);
|
|
continue;
|
|
}
|
|
|
|
r = set_ensure_put(hwaddrs, ðer_addr_hash_ops, n);
|
|
if (r < 0)
|
|
return log_oom();
|
|
if (r > 0)
|
|
TAKE_PTR(n); /* avoid cleanup */
|
|
}
|
|
}
|
|
|
|
DEFINE_CONFIG_PARSE(config_parse_percent, parse_percent, "Failed to parse percent value");
|