1 ////////////////////////////////////////////////////////////////////////////////////
6 // This file is C source for SWAP.
9 // AUTHOR: L.Komkov, S.Dianov, A.Gerenkov
10 // COMPANY NAME: Samsung Research Center in Moscow
11 // DEPT NAME: Advanced Software Group
12 // CREATED: 2008.02.15
14 // REVISION DATE: 2008.12.03
16 ////////////////////////////////////////////////////////////////////////////////////
18 #if !defined(__STORAGE_H__)
21 #include <linux/mount.h>
22 #include <linux/module.h>
23 #include <linux/list.h>
24 #include <linux/spinlock.h>
28 #include "probes_manager.h"
30 #include "event_tmpl.h"
31 #include "error_storage.h"
33 //extern int update_errno_buffer(const char *buffer);
34 //extern int get_last_error(void* u_addr);
35 //extern int has_last_error(void);
36 //extern void last_error_buffer_initialize(void);
37 ///////////////////////////////////////////////////////////////////////////////////////////////////
39 extern int EnableContinuousRetrieval(void);
40 extern int DisableContinuousRetrieval(void);
42 ///////////////////////////////////////////////////////////////////////////////////////////////////
44 extern unsigned int GetBufferSize(void);
45 extern int SetBufferSize(unsigned int nSize);
46 extern int ResetBuffer(void);
48 extern int SetPid(unsigned int pid);
50 //extern spinlock_t buffer_spinlock;
52 ///////////////////////////////////////////////////////////////////////////////////////////////////
55 Functions "storage_init()" and "storage_down()" are for initialization and
56 shutdown respectively.
58 extern int storage_init (void);
59 extern void storage_down (void);
62 Function "pack_event_info()" saves information about event into buffer. It
63 is used in 'probes' to pack and save event data.
65 extern void pack_task_event_info (struct task_struct *task, probe_id_t probe_id,
66 record_type_t record_type, const char *fmt, ...);
67 #define pack_event_info(probe_id, record_type, fmt, ...) \
68 pack_task_event_info(current, probe_id, record_type, fmt, __VA_ARGS__)
70 /* Set most links from us_proc_info to data in the bundle */
71 int link_bundle(void);
72 /* Undo the actions of link_bundle() */
73 void unlink_bundle(void);
76 Adds non-predefined kernel probe to the list.
78 extern int add_probe_to_list (unsigned long addr, kernel_probe_t ** pprobe);
81 Removes non-predefined kernel probe from the list.
83 extern int remove_probe_from_list (unsigned long addr);
86 Searches non-predefined kernel probe in the list.
88 extern kernel_probe_t *find_probe (unsigned long addr);
91 Copies event from user space to buffer and updates its pid/tid/cpu/time.
93 extern int put_us_event (char *data, unsigned long len);
98 extern int set_event_mask (int new_mask);
103 extern int get_event_mask (int *mask);
106 Sets predefined user space probes info.
108 extern int set_predef_uprobes (ioctl_predef_uprobes_info_t *data);
110 Gets predefined user space probes info length.
112 extern int get_predef_uprobes_size(int *size);
114 Gets predefined user space probes info.
116 extern int get_predef_uprobes(ioctl_predef_uprobes_info_t *data);
119 // internal bookkeeping of storage
120 extern char *p_buffer;
122 // list of selected non-predefined kernel probes
123 extern struct hlist_head kernel_probes;
125 // multiple handlers stuff
126 /*struct dbi_modules_handlers {
127 struct list_head modules_handlers;
131 struct dbi_modules_handlers_info {
132 struct module *dbi_module;
133 struct handler_map *dbi_handlers;
135 struct list_head dbi_list_head;
138 extern int dbi_register_handlers_module(struct dbi_modules_handlers_info *dbi_mhi);
139 extern int dbi_unregister_handlers_module(struct dbi_modules_handlers_info *dbi_mhi);
140 //unsigned long get_dbi_modules_handlers(void);*/
142 /* list of on-the-go installed kernel probes */
143 extern struct hlist_head otg_kernel_probes;
146 extern int event_mask;
148 // process pid to instrument
149 extern unsigned int inst_pid;
153 struct list_head list;
156 struct jprobe jprobe;
157 struct kretprobe retprobe;
158 unsigned long offset;
159 unsigned long got_addr;
161 unsigned flag_retprobe:1;
168 struct jprobe jprobe;
170 struct list_head list;
178 signed char reg; // -1 - memory, 0..127 - register number
180 struct list_head list;
181 } us_proc_vtp_data_t;
187 unsigned real_func_addr;
194 struct dentry *m_f_dentry;
198 us_proc_vtp_t *p_vtps;
201 us_proc_plt_t *p_plt;
202 unsigned long vma_start;
203 unsigned long vma_end;
211 struct dentry *m_f_dentry;
213 unsigned unres_ips_count;
214 unsigned unres_vtps_count;
215 //kprobe_opcode_t *mapped_codelets;
218 us_proc_lib_t *p_libs;
221 struct sspt_procs *pp;
227 unsigned int inst_type;
239 dex_proc_ip_t *p_ips;
245 /* cond data itself */
246 struct event_tmpl tmpl;
248 struct list_head list;
249 /* has been applied (for start and stop conditions) */
253 extern struct cond cond_list;
255 /* macros for testing flags */
256 #define ET_FIELD_CLR(flags, field) (flags &= ~field)
257 #define ET_FIELD_SET(flags, field) (flags |= field)
258 #define ET_FIELD_ISSET(flags, field) ((flags & field) != 0)
260 extern inst_us_proc_t us_proc_info;
261 extern inst_dex_proc_t dex_proc_info;
263 #endif /* !defined(__STORAGE_H__) */