Merge branch 'master' of https://github.com/Reisyukaku/ReiNX

Reisyukaku · Oct 18, 2018 · e350bb5 · e350bb5
2 parents ed2d5eb + d18c962
commit e350bb5
Showing 1 changed file with 58 additions and 46 deletions.
diff --git a/src/firmware.c b/src/firmware.c
@@ -42,6 +42,59 @@ pk11_offs *pkg11_offsentify(u8 *pkg1) {
     return NULL;
 }
 
+void patchFS(pkg2_kip1_info_t* ki) {
+    u8 kipHash[0x20];
+
+    print("Patching FS\n");
+
+    se_calc_sha256(&kipHash, ki->kip1, ki->size);
+    se_calc_sha256(&kipHash, ki->kip1, ki->size);
+
+    //Create header
+    size_t sizeDiff = ki->kip1->sections[0].size_decomp - ki->kip1->sections[0].size_comp;
+
+    size_t newSize = ki->size + sizeDiff;
+    pkg2_kip1_t *moddedKip = malloc(newSize);
+    memcpy(moddedKip, ki->kip1, newSize);
+
+    u32 pos = 0;
+    //Get decomp .text segment
+    u8 *kipDecompText = blz_decompress(moddedKip->data, moddedKip->sections[0].size_comp);
+
+    kippatchset_t *pset = kippatch_find_set(kipHash, kip_patches);
+    if (!pset) {
+      print("  could not find patchset with matching hash\n");
+    } else {
+      int res = kippatch_apply_set(kipDecompText, moddedKip->sections[0].size_decomp, pset);
+      if (res) error("kippatch_apply_set() failed\n");
+    }
+
+    moddedKip->flags &= ~1;
+    memcpy((void*)moddedKip->data, kipDecompText, moddedKip->sections[0].size_decomp);
+    free(kipDecompText);
+    pos += moddedKip->sections[0].size_comp;
+    moddedKip->sections[0].size_comp = moddedKip->sections[0].size_decomp;
+
+    for(int i = 1; i < KIP1_NUM_SECTIONS; i++) {
+        if(moddedKip->sections[i].offset != 0) {
+            memcpy((void*)moddedKip->data + pos + sizeDiff, (void*)ki->kip1->data + pos, moddedKip->sections[i].size_comp);
+            pos += moddedKip->sections[i].size_comp;
+        }
+    }
+
+    free(ki->kip1);
+    ki->size = newSize;
+    ki->kip1 = moddedKip;
+}
+
+pkg2_kip1_info_t* find_by_tid(link_t* kip_list, u64 tid) {
+    LIST_FOREACH_ENTRY(pkg2_kip1_info_t, ki, kip_list, link) { 
+        if(ki->kip1->tid == 0x0100000000000000)
+            return ki;
+    }
+    return NULL;
+}
+
 void patch(pk11_offs *pk11, pkg2_hdr_t *pkg2, link_t *kips) {
     //Patch Secmon
     if(!customSecmon){
@@ -224,53 +277,12 @@ void patch(pk11_offs *pk11, pkg2_hdr_t *pkg2, link_t *kips) {
 
         end:;
     }
-
-    u8 kipHash[0x20];
 
-    //Patch FS module (truly not my proudest code TODO cleanup)
-    LIST_FOREACH_ENTRY(pkg2_kip1_info_t, ki, kips, link) {        
-        //Patch FS
-        if(ki->kip1->tid == 0x0100000000000000) {
-            print("Patching FS\n");
-
-            se_calc_sha256(&kipHash, ki->kip1, ki->size);
-            se_calc_sha256(&kipHash, ki->kip1, ki->size);
-
-            //Create header
-            size_t sizeDiff = ki->kip1->sections[0].size_decomp - ki->kip1->sections[0].size_comp;
-            size_t newSize = ki->size + sizeDiff;
-            pkg2_kip1_t *moddedKip = malloc(newSize);
-            memcpy(moddedKip, ki->kip1, newSize);
-            u32 pos = 0;
-            for(int i = 0; i < KIP1_NUM_SECTIONS; i++) {
-                if(!i) {
-                    //Get decomp .text segment
-                    u8 *kipDecompText = blz_decompress(moddedKip->data, moddedKip->sections[i].size_comp);
-
-                    kippatchset_t *pset = kippatch_find_set(kipHash, kip_patches);
-                    if (!pset) {
-                      print("  could not find patchset with matching hash\n");
-                    } else {
-                      int res = kippatch_apply_set(kipDecompText, moddedKip->sections[i].size_decomp, pset);
-                      if (res) error("kippatch_apply_set() failed\n");
-                    }
-
-                    moddedKip->flags &= ~1;
-                    memcpy((void*)moddedKip->data, kipDecompText, moddedKip->sections[i].size_decomp);
-                    free(kipDecompText);
-                    pos += moddedKip->sections[i].size_comp;
-                    moddedKip->sections[i].size_comp = moddedKip->sections[i].size_decomp;
-                } else {
-                    if(moddedKip->sections[i].offset == 0) continue;
-                    memcpy((void*)moddedKip->data + pos + sizeDiff, (void*)ki->kip1->data + pos, moddedKip->sections[i].size_comp);
-                    pos += moddedKip->sections[i].size_comp;
-                }
-            }
-
-            free(ki->kip1);
-            ki->size = newSize;
-            ki->kip1 = moddedKip;
-        }
+    pkg2_kip1_info_t* FS_module = find_by_tid(kips, 0x0100000000000000);
+    if(FS_module == NULL) {
+        error("Could not find FS Module.\n");
+    } else {
+        patchFS(FS_module);
     }
 }