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75 lines
2.4 KiB
C
75 lines
2.4 KiB
C
#ifndef PATCHFINDER_H
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#define PATCHFINDER_H
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#include <stdint.h>
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#include "MachO.h"
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enum {
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PF_METRIC_TYPE_PATTERN,
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PF_METRIC_TYPE_STRING,
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PF_METRIC_TYPE_XREF,
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};
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typedef struct s_PFSection {
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MachO *macho;
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uint64_t fileoff;
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uint64_t vmaddr;
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uint64_t size;
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uint8_t *cache;
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bool ownsCache;
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} PFSection;
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PFSection *pfsec_init_from_macho(MachO *macho, const char *filesetEntryId, const char *segName, const char *sectName);
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int pfsec_read_reloff(PFSection *section, uint64_t rel, size_t size, void *outBuf);
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uint32_t pfsec_read32_reloff(PFSection *section, uint64_t rel);
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int pfsec_read_at_address(PFSection *section, uint64_t vmaddr, void *outBuf, size_t size);
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uint32_t pfsec_read32(PFSection *section, uint64_t vmaddr);
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uint64_t pfsec_read64(PFSection *section, uint64_t vmaddr);
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int pfsec_read_string(PFSection *section, uint64_t vmaddr, char **outString);
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int pfsec_set_cached(PFSection *section, bool cached);
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uint64_t pfsec_find_prev_inst(PFSection *section, uint64_t startAddr, uint32_t searchCount, uint32_t inst, uint32_t mask);
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uint64_t pfsec_find_next_inst(PFSection *section, uint64_t startAddr, uint32_t searchCount, uint32_t inst, uint32_t mask);
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uint64_t pfsec_find_function_start(PFSection *section, uint64_t midAddr);
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void pfsec_free(PFSection *section);
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typedef struct s_MetricShared {
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uint32_t type;
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} MetricShared;
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typedef struct s_PFPatternMetric {
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MetricShared shared;
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void *bytes;
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void *mask;
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size_t nbytes;
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uint16_t alignment;
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} PFPatternMetric;
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typedef struct s_PFStringMetric {
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MetricShared shared;
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char *string;
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} PFStringMetric;
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typedef enum {
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XREF_TYPE_MASK_CALL = (1 << 0),
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XREF_TYPE_MASK_REFERENCE = (1 << 1),
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XREF_TYPE_MASK_ALL = (XREF_TYPE_MASK_CALL | XREF_TYPE_MASK_REFERENCE),
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} PFXrefTypeMask;
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typedef struct s_PFXrefMetric {
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MetricShared shared;
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uint64_t address;
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PFXrefTypeMask typeMask;
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} PFXrefMetric;
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PFPatternMetric *pfmetric_pattern_init(void *bytes, void *mask, size_t nbytes, uint16_t alignment);
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PFStringMetric *pfmetric_string_init(const char *string);
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PFXrefMetric *pfmetric_xref_init(uint64_t address, PFXrefTypeMask types);
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void pfmetric_free(void *metric);
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void pfmetric_run_in_range(PFSection *section, uint64_t startAddr, uint64_t endAddr, void *metric, void (^matchBlock)(uint64_t vmaddr, bool *stop));
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void pfmetric_run(PFSection *section, void *metric, void (^matchBlock)(uint64_t vmaddr, bool *stop));
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#endif |