| 1 | /* SPDX-License-Identifier: (GPL-2.0-only or LGPL-2.1-only) */ |
| 2 | |
| 3 | #ifndef CREATE_SYSCALL_TABLE |
| 4 | |
| 5 | #define OVERRIDE_64_connect |
| 6 | SC_LTTNG_TRACEPOINT_EVENT_CODE(connect, |
| 7 | TP_PROTO(sc_exit(long ret,) int fd, struct sockaddr __user * uservaddr, int addrlen), |
| 8 | TP_ARGS(sc_exit(ret,) fd, uservaddr, addrlen), |
| 9 | TP_locvar( |
| 10 | __typeof__(uservaddr->sa_family) sa_family; |
| 11 | uint16_t dport; |
| 12 | uint32_t v4addr; |
| 13 | uint16_t v6addr[8]; |
| 14 | unsigned int v4addr_len, v6addr_len; |
| 15 | ), |
| 16 | TP_code_pre( |
| 17 | sc_in( |
| 18 | memset(tp_locvar, 0, sizeof(*tp_locvar)); |
| 19 | if (addrlen < sizeof(tp_locvar->sa_family)) |
| 20 | goto skip_code; |
| 21 | (void) lib_ring_buffer_copy_from_user_check_nofault(&tp_locvar->sa_family, |
| 22 | &uservaddr->sa_family, sizeof(tp_locvar->sa_family)); |
| 23 | switch (tp_locvar->sa_family) { |
| 24 | case AF_INET: |
| 25 | if (addrlen < sizeof(struct sockaddr_in)) |
| 26 | goto skip_code; |
| 27 | (void) lib_ring_buffer_copy_from_user_check_nofault(&tp_locvar->dport, |
| 28 | &((struct sockaddr_in __user *) uservaddr)->sin_port, |
| 29 | sizeof(tp_locvar->dport)); |
| 30 | (void) lib_ring_buffer_copy_from_user_check_nofault(&tp_locvar->v4addr, |
| 31 | &((struct sockaddr_in __user *) uservaddr)->sin_addr.s_addr, |
| 32 | sizeof(tp_locvar->v4addr)); |
| 33 | tp_locvar->v4addr_len = 4; |
| 34 | break; |
| 35 | case AF_INET6: |
| 36 | if (addrlen < sizeof(struct sockaddr_in6)) |
| 37 | goto skip_code; |
| 38 | (void) lib_ring_buffer_copy_from_user_check_nofault(&tp_locvar->dport, |
| 39 | &((struct sockaddr_in6 __user *) uservaddr)->sin6_port, |
| 40 | sizeof(tp_locvar->dport)); |
| 41 | if (lib_ring_buffer_copy_from_user_check_nofault(tp_locvar->v6addr, |
| 42 | &((struct sockaddr_in6 __user *) uservaddr)->sin6_addr.in6_u.u6_addr8, |
| 43 | sizeof(tp_locvar->v6addr))) |
| 44 | memset(tp_locvar->v6addr, 0, sizeof(tp_locvar->v6addr)); |
| 45 | tp_locvar->v6addr_len = 8; |
| 46 | break; |
| 47 | } |
| 48 | skip_code: |
| 49 | ) |
| 50 | ), |
| 51 | TP_FIELDS( |
| 52 | sc_exit(ctf_integer(long, ret, ret)) |
| 53 | sc_in(ctf_integer(int, fd, fd)) |
| 54 | sc_in(ctf_integer_hex(struct sockaddr *, uservaddr, uservaddr)) |
| 55 | sc_in(ctf_integer_hex(int, addrlen, addrlen)) |
| 56 | sc_in(ctf_integer(unsigned short, family, tp_locvar->sa_family)) |
| 57 | sc_in(ctf_integer_network(uint16_t, dport, tp_locvar->dport)) |
| 58 | sc_in(ctf_sequence_network(uint8_t, v4addr, &tp_locvar->v4addr, unsigned int, tp_locvar->v4addr_len)) |
| 59 | sc_in(ctf_sequence_network(uint16_t, v6addr, &tp_locvar->v6addr, unsigned int, tp_locvar->v6addr_len)) |
| 60 | ), |
| 61 | TP_code_post() |
| 62 | ) |
| 63 | |
| 64 | #define LTTNG_SYSCALL_ACCEPT_locvar \ |
| 65 | __typeof__(upeer_sockaddr->sa_family) sa_family;\ |
| 66 | uint16_t sport; \ |
| 67 | uint32_t v4addr; \ |
| 68 | uint16_t v6addr[8]; \ |
| 69 | int v4addr_len, v6addr_len; \ |
| 70 | int uaddr_len; |
| 71 | |
| 72 | #define LTTNG_SYSCALL_ACCEPT_code_pre \ |
| 73 | sc_inout( \ |
| 74 | memset(tp_locvar, 0, sizeof(*tp_locvar)); \ |
| 75 | (void) lib_ring_buffer_copy_from_user_check_nofault(&tp_locvar->uaddr_len, \ |
| 76 | upeer_addrlen, sizeof(tp_locvar->uaddr_len)); \ |
| 77 | ) \ |
| 78 | sc_out( \ |
| 79 | if (tp_locvar->uaddr_len < sizeof(tp_locvar->sa_family)) \ |
| 80 | goto skip_code; \ |
| 81 | (void) lib_ring_buffer_copy_from_user_check_nofault(&tp_locvar->sa_family, \ |
| 82 | &upeer_sockaddr->sa_family, sizeof(tp_locvar->sa_family)); \ |
| 83 | switch (tp_locvar->sa_family) { \ |
| 84 | case AF_INET: \ |
| 85 | if (tp_locvar->uaddr_len < sizeof(struct sockaddr_in)) \ |
| 86 | goto skip_code; \ |
| 87 | (void) lib_ring_buffer_copy_from_user_check_nofault(&tp_locvar->sport, \ |
| 88 | &((struct sockaddr_in __user *) upeer_sockaddr)->sin_port, \ |
| 89 | sizeof(tp_locvar->sport)); \ |
| 90 | (void) lib_ring_buffer_copy_from_user_check_nofault(&tp_locvar->v4addr, \ |
| 91 | &((struct sockaddr_in __user *) upeer_sockaddr)->sin_addr.s_addr, \ |
| 92 | sizeof(tp_locvar->v4addr)); \ |
| 93 | tp_locvar->v4addr_len = 4; \ |
| 94 | break; \ |
| 95 | case AF_INET6: \ |
| 96 | if (tp_locvar->uaddr_len < sizeof(struct sockaddr_in6)) \ |
| 97 | goto skip_code; \ |
| 98 | (void) lib_ring_buffer_copy_from_user_check_nofault(&tp_locvar->sport, \ |
| 99 | &((struct sockaddr_in6 __user *) upeer_sockaddr)->sin6_port, \ |
| 100 | sizeof(tp_locvar->sport)); \ |
| 101 | if (lib_ring_buffer_copy_from_user_check_nofault(tp_locvar->v6addr, \ |
| 102 | &((struct sockaddr_in6 __user *) upeer_sockaddr)->sin6_addr.in6_u.u6_addr8, \ |
| 103 | sizeof(tp_locvar->v6addr))) \ |
| 104 | memset(tp_locvar->v6addr, 0, sizeof(tp_locvar->v6addr)); \ |
| 105 | tp_locvar->v6addr_len = 8; \ |
| 106 | break; \ |
| 107 | } \ |
| 108 | skip_code: \ |
| 109 | ) |
| 110 | |
| 111 | #define OVERRIDE_64_accept |
| 112 | SC_LTTNG_TRACEPOINT_EVENT_CODE(accept, |
| 113 | TP_PROTO(sc_exit(long ret,) int fd, struct sockaddr __user * upeer_sockaddr, int __user * upeer_addrlen), |
| 114 | TP_ARGS(sc_exit(ret,) fd, upeer_sockaddr, upeer_addrlen), |
| 115 | TP_locvar( |
| 116 | LTTNG_SYSCALL_ACCEPT_locvar |
| 117 | ), |
| 118 | TP_code_pre( |
| 119 | LTTNG_SYSCALL_ACCEPT_code_pre |
| 120 | ), |
| 121 | TP_FIELDS( |
| 122 | sc_exit(ctf_integer(long, ret, ret)) |
| 123 | sc_in(ctf_integer(int, fd, fd)) |
| 124 | sc_in(ctf_integer_hex(struct sockaddr *, upeer_sockaddr, upeer_sockaddr)) |
| 125 | sc_inout(ctf_integer(int, upeer_addrlen, tp_locvar->uaddr_len)) |
| 126 | sc_out(ctf_integer(unsigned short, family, tp_locvar->sa_family)) |
| 127 | sc_out(ctf_integer_network(uint16_t, sport, tp_locvar->sport)) |
| 128 | sc_out(ctf_sequence_network(uint8_t, v4addr, &tp_locvar->v4addr, unsigned int, tp_locvar->v4addr_len)) |
| 129 | sc_out(ctf_sequence_network(uint16_t, v6addr, &tp_locvar->v6addr, unsigned int, tp_locvar->v6addr_len)) |
| 130 | ), |
| 131 | TP_code_post() |
| 132 | ) |
| 133 | |
| 134 | #define OVERRIDE_64_accept4 |
| 135 | SC_LTTNG_TRACEPOINT_EVENT_CODE(accept4, |
| 136 | TP_PROTO(sc_exit(long ret,) int fd, struct sockaddr __user * upeer_sockaddr, int __user * upeer_addrlen, int flags), |
| 137 | TP_ARGS(sc_exit(ret,) fd, upeer_sockaddr, upeer_addrlen, flags), |
| 138 | TP_locvar( |
| 139 | LTTNG_SYSCALL_ACCEPT_locvar |
| 140 | ), |
| 141 | TP_code_pre( |
| 142 | LTTNG_SYSCALL_ACCEPT_code_pre |
| 143 | ), |
| 144 | TP_FIELDS( |
| 145 | sc_exit(ctf_integer(long, ret, ret)) |
| 146 | sc_in(ctf_integer(int, fd, fd)) |
| 147 | sc_in(ctf_integer_hex(struct sockaddr *, upeer_sockaddr, upeer_sockaddr)) |
| 148 | sc_inout(ctf_integer(int, upeer_addrlen, tp_locvar->uaddr_len)) |
| 149 | sc_in(ctf_integer_hex(int, flags, flags)) |
| 150 | sc_out(ctf_integer(unsigned short, family, tp_locvar->sa_family)) |
| 151 | sc_out(ctf_integer_network(uint16_t, sport, tp_locvar->sport)) |
| 152 | sc_out(ctf_sequence_network(uint8_t, v4addr, &tp_locvar->v4addr, unsigned int, tp_locvar->v4addr_len)) |
| 153 | sc_out(ctf_sequence_network(uint16_t, v6addr, &tp_locvar->v6addr, unsigned int, tp_locvar->v6addr_len)) |
| 154 | ), |
| 155 | TP_code_post() |
| 156 | ) |
| 157 | |
| 158 | #define OVERRIDE_64_pipe |
| 159 | SC_LTTNG_TRACEPOINT_EVENT(pipe, |
| 160 | TP_PROTO(sc_exit(long ret,) int * fildes), |
| 161 | TP_ARGS(sc_exit(ret,) fildes), |
| 162 | TP_FIELDS(sc_exit(ctf_integer(long, ret, ret)) |
| 163 | sc_out(ctf_user_array(int, fildes, fildes, 2)) |
| 164 | ) |
| 165 | ) |
| 166 | |
| 167 | #else /* CREATE_SYSCALL_TABLE */ |
| 168 | |
| 169 | #define OVERRIDE_TABLE_64_clone |
| 170 | TRACE_SYSCALL_TABLE(clone, clone, 56, 5) |
| 171 | #define OVERRIDE_TABLE_64_execve |
| 172 | TRACE_SYSCALL_TABLE(execve, execve, 59, 3) |
| 173 | #define OVERRIDE_TABLE_64_getcpu |
| 174 | TRACE_SYSCALL_TABLE(getcpu, getcpu, 309, 3) |
| 175 | |
| 176 | #endif /* CREATE_SYSCALL_TABLE */ |