Add packet to check if running as root.

This commit is contained in:
2019-10-26 17:32:35 +01:00
parent 33b6ebdb92
commit 08a47ec5d4
4 changed files with 56 additions and 0 deletions

View File

@@ -63,6 +63,8 @@
#define DICMOTE_PACKET_TYPE_COMMAND_GET_PCMCIA_DATA 23
#define DICMOTE_PACKET_TYPE_RESPONSE_GET_PCMCIA_DATA 24
#define DICMOTE_PACKET_TYPE_COMMAND_CLOSE_DEVICE 25
#define DICMOTE_PACKET_TYPE_COMMAND_AM_I_ROOT 26
#define DICMOTE_PACKET_TYPE_RESPONSE_AM_I_ROOT 27
#define DICMOTE_PROTOCOL_MAX 1
#define DICMOTE_PACKET_NOP_REASON_OOO 0
#define DICMOTE_PACKET_NOP_REASON_NOT_IMPLEMENTED 1
@@ -424,6 +426,17 @@ typedef struct
DicPacketHeader hdr;
} DicPacketCmdClose;
typedef struct
{
DicPacketHeader hdr;
} DicPacketCmdAmIRoot;
typedef struct
{
DicPacketHeader hdr;
uint32_t am_i_root;
} DicPacketResAmIRoot;
#pragma pack(pop)
DeviceInfoList* ListDevices();
@@ -529,4 +542,5 @@ int32_t NetClose(int32_t fd);
void Initialize();
void PlatformLoop(DicPacketHello* pkt_server_hello);
void* WorkingLoop(void* arguments);
uint8_t AmIRoot();
#endif

View File

@@ -17,9 +17,13 @@
#include "../dicmote.h"
#include <unistd.h>
void Initialize()
{
// Do nothing
}
void PlatformLoop(DicPacketHello* pkt_server_hello) { WorkingLoop(pkt_server_hello); }
uint8_t AmIRoot() { return geteuid() == 0; }

View File

@@ -63,3 +63,5 @@ void PlatformLoop(DicPacketHello* pkt_server_hello)
if(buttonsDown & WPAD_BUTTON_HOME) { return; }
}
}
uint8_t AmIRoot() { return 1; }

View File

@@ -47,6 +47,7 @@ void* WorkingLoop(void* arguments)
DicPacketHello* pkt_server_hello;
DicPacketHello* pkt_client_hello;
DicPacketNop* pkt_nop;
DicPacketResAmIRoot* pkt_res_am_i_root;
DicPacketResAtaChs* pkt_res_ata_chs;
DicPacketResAtaLba28* pkt_res_ata_lba28;
DicPacketResAtaLba48* pkt_res_ata_lba48;
@@ -1020,6 +1021,41 @@ void* WorkingLoop(void* arguments)
device_ctx = NULL;
skip_next_hdr = 1;
continue;
case DICMOTE_PACKET_TYPE_COMMAND_AM_I_ROOT:
// Packet only contains header so, dummy
in_buf = malloc(le32toh(pkt_hdr->len));
if(!in_buf)
{
printf("Fatal error %d allocating memory for packet, closing connection...\n", errno);
free(pkt_hdr);
NetClose(cli_sock);
continue;
}
NetRecv(cli_sock, in_buf, le32toh(pkt_hdr->len), 0);
free(in_buf);
pkt_res_am_i_root = malloc(sizeof(DicPacketResAmIRoot));
if(!pkt_res_am_i_root)
{
printf("Fatal error %d allocating memory for packet, closing connection...\n", errno);
free(pkt_hdr);
NetClose(cli_sock);
continue;
}
memset(pkt_res_am_i_root, 0, sizeof(DicPacketResAmIRoot));
pkt_res_am_i_root->hdr.remote_id = htole32(DICMOTE_REMOTE_ID);
pkt_res_am_i_root->hdr.packet_id = htole32(DICMOTE_PACKET_ID);
pkt_res_am_i_root->hdr.version = DICMOTE_PACKET_VERSION;
pkt_res_am_i_root->hdr.packet_type = DICMOTE_PACKET_TYPE_RESPONSE_AM_I_ROOT;
pkt_res_am_i_root->hdr.len = htole32(sizeof(DicPacketResAmIRoot));
pkt_res_am_i_root->am_i_root = AmIRoot();
NetWrite(cli_sock, pkt_res_am_i_root, le32toh(pkt_res_am_i_root->hdr.len));
free(pkt_res_am_i_root);
continue;
default:
pkt_nop->reason_code = DICMOTE_PACKET_NOP_REASON_NOT_RECOGNIZED;
memset(&pkt_nop->reason, 0, 256);