Ben Pfaff
bab6bdbe58
These are useful for local management connections because, unlike TCP sockets, they are subject to regular file system permissions.
139 lines
5.4 KiB
C
139 lines
5.4 KiB
C
/* Copyright (c) 2008 The Board of Trustees of The Leland Stanford
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* Junior University
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*
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* We are making the OpenFlow specification and associated documentation
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* (Software) available for public use and benefit with the expectation
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* that others will use, modify and enhance the Software and contribute
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* those enhancements back to the community. However, since we would
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* like to make the Software available for broadest use, with as few
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* restrictions as possible permission is hereby granted, free of
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* charge, to any person obtaining a copy of this Software to deal in
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* the Software under the copyrights without restriction, including
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* without limitation the rights to use, copy, modify, merge, publish,
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* distribute, sublicense, and/or sell copies of the Software, and to
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* permit persons to whom the Software is furnished to do so, subject to
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* the following conditions:
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*
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* The above copyright notice and this permission notice shall be
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* included in all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
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* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
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* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
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* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
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* BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
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* ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
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* CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
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* SOFTWARE.
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*
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* The name and trademarks of copyright holder(s) may NOT be used in
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* advertising or publicity pertaining to the Software or any
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* derivatives without specific, written prior permission.
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*/
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#ifndef VLOG_H
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#define VLOG_H 1
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#include <stdbool.h>
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/* Logging importance levels. */
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enum vlog_level {
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VLL_EMER,
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VLL_ERR,
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VLL_WARN,
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VLL_DBG,
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VLL_N_LEVELS
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};
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const char *vlog_get_level_name(enum vlog_level);
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enum vlog_level vlog_get_level_val(const char *name);
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/* Facilities that we can log to. */
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enum vlog_facility {
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VLF_SYSLOG,
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VLF_CONSOLE,
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VLF_N_FACILITIES,
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VLF_ANY_FACILITY = -1
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};
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const char *vlog_get_facility_name(enum vlog_facility);
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enum vlog_facility vlog_get_facility_val(const char *name);
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/* Modules that can emit log messages. */
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#define VLOG_MODULES \
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VLOG_MODULE(chain) \
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VLOG_MODULE(controller) \
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VLOG_MODULE(ctlpath) \
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VLOG_MODULE(daemon) \
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VLOG_MODULE(datapath) \
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VLOG_MODULE(dhcp) \
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VLOG_MODULE(dhcp_client) \
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VLOG_MODULE(dpif) \
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VLOG_MODULE(dpctl) \
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VLOG_MODULE(fault) \
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VLOG_MODULE(flow) \
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VLOG_MODULE(learning_switch) \
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VLOG_MODULE(mac_learning) \
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VLOG_MODULE(netdev) \
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VLOG_MODULE(netlink) \
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VLOG_MODULE(ofp_discover) \
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VLOG_MODULE(poll_loop) \
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VLOG_MODULE(secchan) \
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VLOG_MODULE(rconn) \
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VLOG_MODULE(switch) \
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VLOG_MODULE(socket_util) \
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VLOG_MODULE(vconn_netlink) \
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VLOG_MODULE(vconn_tcp) \
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VLOG_MODULE(vconn_ssl) \
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VLOG_MODULE(vconn_stream) \
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VLOG_MODULE(vconn_unix) \
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VLOG_MODULE(vconn) \
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VLOG_MODULE(vlog) \
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/* VLM_ constant for each vlog module. */
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enum vlog_module {
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#define VLOG_MODULE(NAME) VLM_##NAME,
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VLOG_MODULES
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#undef VLOG_MODULE
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VLM_N_MODULES,
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VLM_ANY_MODULE = -1
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};
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const char *vlog_get_module_name(enum vlog_module);
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enum vlog_module vlog_get_module_val(const char *name);
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/* Configuring how each module logs messages. */
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enum vlog_level vlog_get_level(enum vlog_module, enum vlog_facility);
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void vlog_set_levels(enum vlog_module, enum vlog_facility, enum vlog_level);
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char *vlog_set_levels_from_string(const char *);
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char *vlog_get_levels(void);
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bool vlog_is_enabled(enum vlog_module, enum vlog_level);
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void vlog_set_verbosity(const char *arg);
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/* Function for actual logging. */
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void vlog_init(void);
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void vlog_exit(void);
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void vlog(enum vlog_module, enum vlog_level, const char *format, ...)
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__attribute__((format(printf, 3, 4)));
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/* Convenience macros. To use these, define THIS_MODULE as a macro that
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* expands to the module used by the current source file, e.g.
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* #include "vlog.h"
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* #define THIS_MODULE VLM_netlink
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* Guaranteed to preserve errno.
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*/
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#define VLOG_EMER(...) vlog(THIS_MODULE, VLL_EMER, __VA_ARGS__)
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#define VLOG_ERR(...) vlog(THIS_MODULE, VLL_ERR, __VA_ARGS__)
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#define VLOG_WARN(...) vlog(THIS_MODULE, VLL_WARN, __VA_ARGS__)
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#define VLOG_DBG(...) vlog(THIS_MODULE, VLL_DBG, __VA_ARGS__)
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/* More convenience macros, for testing whether a given level is enabled in
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* THIS_MODULE. When constructing a log message is expensive, this enables it
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* to be skipped. */
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#define VLOG_IS_EMER_ENABLED() true
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#define VLOG_IS_ERR_ENABLED() vlog_is_enabled(THIS_MODULE, VLL_EMER)
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#define VLOG_IS_WARN_ENABLED() vlog_is_enabled(THIS_MODULE, VLL_WARN)
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#define VLOG_IS_DBG_ENABLED() vlog_is_enabled(THIS_MODULE, VLL_DBG)
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#endif /* vlog.h */
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