1 /* Copyright (C) 2011-2016 Open Information Security Foundation
2  *
3  * You can copy, redistribute or modify this Program under the terms of
4  * the GNU General Public License version 2 as published by the Free
5  * Software Foundation.
6  *
7  * This program is distributed in the hope that it will be useful,
8  * but WITHOUT ANY WARRANTY; without even the implied warranty of
9  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
10  * GNU General Public License for more details.
11  *
12  * You should have received a copy of the GNU General Public License
13  * version 2 along with this program; if not, write to the Free Software
14  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
15  * 02110-1301, USA.
16  */
17 
18 #ifndef __UTIL_DEVICE_H__
19 #define __UTIL_DEVICE_H__
20 
21 #include "queue.h"
22 #include "unix-manager.h"
23 
24 #define OFFLOAD_FLAG_SG     (1<<0)
25 #define OFFLOAD_FLAG_TSO    (1<<1)
26 #define OFFLOAD_FLAG_GSO    (1<<2)
27 #define OFFLOAD_FLAG_GRO    (1<<3)
28 #define OFFLOAD_FLAG_LRO    (1<<4)
29 #define OFFLOAD_FLAG_RXCSUM (1<<5)
30 #define OFFLOAD_FLAG_TXCSUM (1<<6)
31 #define OFFLOAD_FLAG_TOE    (1<<7)
32 
33 void LiveSetOffloadDisable(void);
34 void LiveSetOffloadWarn(void);
35 int LiveGetOffload(void);
36 
37 #define MAX_DEVNAME 10
38 
39 /** storage for live device names */
40 typedef struct LiveDevice_ {
41     char *dev;  /**< the device (e.g. "eth0") */
42     char dev_short[MAX_DEVNAME + 1];
43     bool tenant_id_set;
44 
45     int id;
46 
47     SC_ATOMIC_DECLARE(uint64_t, pkts);
48     SC_ATOMIC_DECLARE(uint64_t, drop);
49     SC_ATOMIC_DECLARE(uint64_t, bypassed);
50     SC_ATOMIC_DECLARE(uint64_t, invalid_checksums);
51     TAILQ_ENTRY(LiveDevice_) next;
52 
53     uint32_t tenant_id;     /**< tenant id in multi-tenancy */
54     uint32_t offload_orig;  /**< original offload settings to restore @exit */
55 } LiveDevice;
56 
57 typedef struct LiveDeviceName_ {
58     char *dev;  /**< the device (e.g. "eth0") */
59     TAILQ_ENTRY(LiveDeviceName_) next;
60 } LiveDeviceName;
61 
62 void LiveDevRegisterExtension(void);
63 
64 int LiveRegisterDeviceName(const char *dev);
65 int LiveGetDeviceNameCount(void);
66 const char *LiveGetDeviceNameName(int number);
67 int LiveRegisterDevice(const char *dev);
68 int LiveDevUseBypass(LiveDevice *dev);
69 void LiveDevSetBypassStats(LiveDevice *dev, uint64_t cnt, int family);
70 void LiveDevAddBypassStats(LiveDevice *dev, uint64_t cnt, int family);
71 void LiveDevSubBypassStats(LiveDevice *dev, uint64_t cnt, int family);
72 void LiveDevAddBypassFail(LiveDevice *dev, uint64_t cnt, int family);
73 void LiveDevAddBypassSuccess(LiveDevice *dev, uint64_t cnt, int family);
74 int LiveGetDeviceCount(void);
75 const char *LiveGetDeviceName(int number);
76 LiveDevice *LiveGetDevice(const char *dev);
77 const char *LiveGetShortName(const char *dev);
78 int LiveBuildDeviceList(const char *base);
79 void LiveDeviceHasNoStats(void);
80 int LiveDeviceListClean(void);
81 int LiveBuildDeviceListCustom(const char *base, const char *itemname);
82 
83 LiveDevice *LiveDeviceForEach(LiveDevice **ldev, LiveDevice **ndev);
84 
85 void LiveDeviceFinalize(void);
86 
87 #ifdef BUILD_UNIX_SOCKET
88 TmEcode LiveDeviceIfaceStat(json_t *cmd, json_t *server_msg, void *data);
89 TmEcode LiveDeviceIfaceList(json_t *cmd, json_t *server_msg, void *data);
90 TmEcode LiveDeviceGetBypassedStats(json_t *cmd, json_t *answer, void *data);
91 #endif
92 
93 #endif /* __UTIL_DEVICE_H__ */
94