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Suppress spurious output

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2021-11-09 18:29:25 +00:00
parent 8578b6b01c
commit 02e8919cbc
51 changed files with 367 additions and 387 deletions
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55
frida_mode/src/lib/lib.c
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@ -8,9 +8,8 @@
#include "frida-gumjs.h"
#include "debug.h"
#include "lib.h"
#include "util.h"
#if defined(__arm__) || defined(__i386__)
#define ELFCLASS ELFCLASS32
@ -55,11 +54,11 @@ static gboolean lib_find_exe(const GumModuleDetails *details,
static void lib_validate_hdr(Elf_Ehdr *hdr) {
if (hdr->e_ident[0] != ELFMAG0) FATAL("Invalid e_ident[0]");
if (hdr->e_ident[1] != ELFMAG1) FATAL("Invalid e_ident[1]");
if (hdr->e_ident[2] != ELFMAG2) FATAL("Invalid e_ident[2]");
if (hdr->e_ident[3] != ELFMAG3) FATAL("Invalid e_ident[3]");
if (hdr->e_ident[4] != ELFCLASS) FATAL("Invalid class");
if (hdr->e_ident[0] != ELFMAG0) FFATAL("Invalid e_ident[0]");
if (hdr->e_ident[1] != ELFMAG1) FFATAL("Invalid e_ident[1]");
if (hdr->e_ident[2] != ELFMAG2) FFATAL("Invalid e_ident[2]");
if (hdr->e_ident[3] != ELFMAG3) FFATAL("Invalid e_ident[3]");
if (hdr->e_ident[4] != ELFCLASS) FFATAL("Invalid class");
}
@ -88,18 +87,22 @@ static void lib_read_text_section(lib_details_t *lib_details, Elf_Ehdr *hdr) {
}
if (!found_preferred_base) { FATAL("Failed to find preferred load address"); }
if (!found_preferred_base) {
OKF("Image preferred load address 0x%016" G_GSIZE_MODIFIER "x",
preferred_base);
FFATAL("Failed to find preferred load address");
}
FOKF("Image preferred load address 0x%016" G_GSIZE_MODIFIER "x",
preferred_base);
shdr = (Elf_Shdr *)((char *)hdr + hdr->e_shoff);
shstrtab = &shdr[hdr->e_shstrndx];
shstr = (char *)hdr + shstrtab->sh_offset;
OKF("shdr: %p", shdr);
OKF("shstrtab: %p", shstrtab);
OKF("shstr: %p", shstr);
FOKF("shdr: %p", shdr);
FOKF("shstrtab: %p", shstrtab);
FOKF("shstr: %p", shstr);
for (size_t i = 0; i < hdr->e_shnum; i++) {
@ -108,16 +111,16 @@ static void lib_read_text_section(lib_details_t *lib_details, Elf_Ehdr *hdr) {
if (curr->sh_name == 0) continue;
section_name = &shstr[curr->sh_name];
OKF("Section: %2" G_GSIZE_MODIFIER "u - base: 0x%016" G_GSIZE_MODIFIER
"X size: 0x%016" G_GSIZE_MODIFIER "X %s",
i, curr->sh_addr, curr->sh_size, section_name);
FOKF("Section: %2" G_GSIZE_MODIFIER "u - base: 0x%016" G_GSIZE_MODIFIER
"X size: 0x%016" G_GSIZE_MODIFIER "X %s",
i, curr->sh_addr, curr->sh_size, section_name);
if (memcmp(section_name, text_name, sizeof(text_name)) == 0 &&
text_base == 0) {
text_base = lib_details->base_address + curr->sh_addr - preferred_base;
text_limit = text_base + curr->sh_size;
OKF("> text_addr: 0x%016" G_GINT64_MODIFIER "X", text_base);
OKF("> text_limit: 0x%016" G_GINT64_MODIFIER "X", text_limit);
FOKF("> text_addr: 0x%016" G_GINT64_MODIFIER "X", text_base);
FOKF("> text_limit: 0x%016" G_GINT64_MODIFIER "X", text_limit);
}
@ -132,16 +135,16 @@ static void lib_get_text_section(lib_details_t *details) {
Elf_Ehdr *hdr;
fd = open(details->path, O_RDONLY);
if (fd < 0) { FATAL("Failed to open %s", details->path); }
if (fd < 0) { FFATAL("Failed to open %s", details->path); }
len = lseek(fd, 0, SEEK_END);
if (len == (off_t)-1) { FATAL("Failed to lseek %s", details->path); }
if (len == (off_t)-1) { FFATAL("Failed to lseek %s", details->path); }
OKF("len: %ld", len);
FOKF("len: %ld", len);
hdr = (Elf_Ehdr *)mmap(NULL, len, PROT_READ, MAP_PRIVATE, fd, 0);
if (hdr == MAP_FAILED) { FATAL("Failed to map %s", details->path); }
if (hdr == MAP_FAILED) { FFATAL("Failed to map %s", details->path); }
lib_validate_hdr(hdr);
lib_read_text_section(details, hdr);
@ -159,22 +162,22 @@ void lib_init(void) {
lib_details_t lib_details;
gum_process_enumerate_modules(lib_find_exe, &lib_details);
OKF("Executable: 0x%016" G_GINT64_MODIFIER "x - %s", lib_details.base_address,
lib_details.path);
FOKF("Executable: 0x%016" G_GINT64_MODIFIER "x - %s",
lib_details.base_address, lib_details.path);
lib_get_text_section(&lib_details);
}
guint64 lib_get_text_base(void) {
if (text_base == 0) FATAL("Lib not initialized");
if (text_base == 0) FFATAL("Lib not initialized");
return text_base;
}
guint64 lib_get_text_limit(void) {
if (text_limit == 0) FATAL("Lib not initialized");
if (text_limit == 0) FFATAL("Lib not initialized");
return text_limit;
}