/* Copyright (C) 2005 Red Hat, Inc. */
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struct semanage_fcontext;
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struct semanage_fcontext_key;
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typedef struct semanage_fcontext record_t;
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typedef struct semanage_fcontext_key record_key_t;
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#define DBASE_RECORD_DEFINED
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struct dbase_file;
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typedef struct dbase_file dbase_t;
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#define DBASE_DEFINED
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#include <stdlib.h>
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#include <stdio.h>
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#include <strings.h>
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#include <semanage/handle.h>
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#include "fcontext_internal.h"
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#include "context_internal.h"
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#include "database_file.h"
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#include "parse_utils.h"
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#include "debug.h"
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static const char *type_str(int type)
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{
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switch (type) {
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default:
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case SEMANAGE_FCONTEXT_ALL:
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return " ";
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case SEMANAGE_FCONTEXT_REG:
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return "--";
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case SEMANAGE_FCONTEXT_DIR:
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return "-d";
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case SEMANAGE_FCONTEXT_CHAR:
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return "-c";
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case SEMANAGE_FCONTEXT_BLOCK:
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return "-b";
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case SEMANAGE_FCONTEXT_SOCK:
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return "-s";
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case SEMANAGE_FCONTEXT_LINK:
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return "-l";
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case SEMANAGE_FCONTEXT_PIPE:
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return "-p";
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}
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}
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static int fcontext_print(semanage_handle_t * handle,
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semanage_fcontext_t * fcontext, FILE * str)
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{
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char *con_str = NULL;
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const char *expr = semanage_fcontext_get_expr(fcontext);
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int type = semanage_fcontext_get_type(fcontext);
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const char *print_str = type_str(type);
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const char *tstr = semanage_fcontext_get_type_str(type);
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semanage_context_t *con = semanage_fcontext_get_con(fcontext);
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if (fprintf(str, "%s %s ", expr, print_str) < 0)
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goto err;
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if (con != NULL) {
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if (semanage_context_to_string(handle, con, &con_str) < 0)
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goto err;
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if (fprintf(str, "%s\n", con_str) < 0)
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goto err;
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free(con_str);
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con_str = NULL;
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} else {
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if (fprintf(str, "<<none>>\n") < 0)
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goto err;
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}
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return STATUS_SUCCESS;
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err:
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ERR(handle, "could not print file context for "
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"%s (%s) to stream", expr, tstr);
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free(con_str);
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return STATUS_ERR;
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}
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static int fcontext_parse(semanage_handle_t * handle,
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parse_info_t * info, semanage_fcontext_t * fcontext)
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{
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char *str = NULL;
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semanage_context_t *con = NULL;
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if (parse_skip_space(handle, info) < 0)
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goto err;
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if (!info->ptr)
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goto last;
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/* Regexp */
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if (parse_fetch_string(handle, info, &str, ' ') < 0)
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goto err;
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if (semanage_fcontext_set_expr(handle, fcontext, str) < 0)
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goto err;
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free(str);
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str = NULL;
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/* Type */
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if (parse_assert_space(handle, info) < 0)
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goto err;
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if (parse_fetch_string(handle, info, &str, ' ') < 0)
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goto err;
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if (!strcasecmp(str, "-s"))
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semanage_fcontext_set_type(fcontext, SEMANAGE_FCONTEXT_SOCK);
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else if (!strcasecmp(str, "-p"))
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semanage_fcontext_set_type(fcontext, SEMANAGE_FCONTEXT_PIPE);
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else if (!strcasecmp(str, "-b"))
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semanage_fcontext_set_type(fcontext, SEMANAGE_FCONTEXT_BLOCK);
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else if (!strcasecmp(str, "-l"))
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semanage_fcontext_set_type(fcontext, SEMANAGE_FCONTEXT_LINK);
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else if (!strcasecmp(str, "-c"))
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semanage_fcontext_set_type(fcontext, SEMANAGE_FCONTEXT_CHAR);
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else if (!strcasecmp(str, "-d"))
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semanage_fcontext_set_type(fcontext, SEMANAGE_FCONTEXT_DIR);
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else if (!strcasecmp(str, "--"))
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semanage_fcontext_set_type(fcontext, SEMANAGE_FCONTEXT_REG);
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else
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goto process_context;
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free(str);
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str = NULL;
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/* Context */
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if (parse_assert_space(handle, info) < 0)
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goto err;
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if (parse_fetch_string(handle, info, &str, ' ') < 0)
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goto err;
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process_context:
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if (semanage_context_from_string(handle, str, &con) < 0) {
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ERR(handle, "invalid security context \"%s\" (%s: %u)\n%s",
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str, info->filename, info->lineno, info->orig_line);
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goto err;
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}
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free(str);
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str = NULL;
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if (con && semanage_fcontext_set_con(handle, fcontext, con) < 0)
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goto err;
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if (parse_assert_space(handle, info) < 0)
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goto err;
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semanage_context_free(con);
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return STATUS_SUCCESS;
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last:
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parse_dispose_line(info);
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return STATUS_NODATA;
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err:
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ERR(handle, "could not parse file context record");
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free(str);
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semanage_context_free(con);
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parse_dispose_line(info);
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return STATUS_ERR;
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}
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/* FCONTEXT RECORD: FILE extension: method table */
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record_file_table_t SEMANAGE_FCONTEXT_FILE_RTABLE = {
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.parse = fcontext_parse,
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.print = fcontext_print,
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};
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int fcontext_file_dbase_init(semanage_handle_t * handle,
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const char *path_ro,
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const char *path_rw,
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dbase_config_t * dconfig)
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{
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if (dbase_file_init(handle,
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path_ro,
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path_rw,
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&SEMANAGE_FCONTEXT_RTABLE,
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&SEMANAGE_FCONTEXT_FILE_RTABLE,
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&dconfig->dbase) < 0)
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return STATUS_ERR;
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dconfig->dtable = &SEMANAGE_FILE_DTABLE;
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return STATUS_SUCCESS;
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}
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void fcontext_file_dbase_release(dbase_config_t * dconfig)
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{
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dbase_file_release(dconfig->dbase);
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}
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