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authorLinus Torvalds <torvalds@linux-foundation.org>2014-04-02 20:53:45 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2014-04-02 20:53:45 -0700
commitcd6362befe4cc7bf589a5236d2a780af2d47bcc9 (patch)
tree3bd4e13ec3f92a00dc4f6c3d65e820b54dbfe46e /tools
parent0f1b1e6d73cb989ce2c071edc57deade3b084dfe (diff)
parentb1586f099ba897542ece36e8a23c1a62907261ef (diff)
Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next
Pull networking updates from David Miller: "Here is my initial pull request for the networking subsystem during this merge window: 1) Support for ESN in AH (RFC 4302) from Fan Du. 2) Add full kernel doc for ethtool command structures, from Ben Hutchings. 3) Add BCM7xxx PHY driver, from Florian Fainelli. 4) Export computed TCP rate information in netlink socket dumps, from Eric Dumazet. 5) Allow IPSEC SA to be dumped partially using a filter, from Nicolas Dichtel. 6) Convert many drivers to pci_enable_msix_range(), from Alexander Gordeev. 7) Record SKB timestamps more efficiently, from Eric Dumazet. 8) Switch to microsecond resolution for TCP round trip times, also from Eric Dumazet. 9) Clean up and fix 6lowpan fragmentation handling by making use of the existing inet_frag api for it's implementation. 10) Add TX grant mapping to xen-netback driver, from Zoltan Kiss. 11) Auto size SKB lengths when composing netlink messages based upon past message sizes used, from Eric Dumazet. 12) qdisc dumps can take a long time, add a cond_resched(), From Eric Dumazet. 13) Sanitize netpoll core and drivers wrt. SKB handling semantics. Get rid of never-used-in-tree netpoll RX handling. From Eric W Biederman. 14) Support inter-address-family and namespace changing in VTI tunnel driver(s). From Steffen Klassert. 15) Add Altera TSE driver, from Vince Bridgers. 16) Optimizing csum_replace2() so that it doesn't adjust the checksum by checksumming the entire header, from Eric Dumazet. 17) Expand BPF internal implementation for faster interpreting, more direct translations into JIT'd code, and much cleaner uses of BPF filtering in non-socket ocntexts. From Daniel Borkmann and Alexei Starovoitov" * git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next: (1976 commits) netpoll: Use skb_irq_freeable to make zap_completion_queue safe. net: Add a test to see if a skb is freeable in irq context qlcnic: Fix build failure due to undefined reference to `vxlan_get_rx_port' net: ptp: move PTP classifier in its own file net: sxgbe: make "core_ops" static net: sxgbe: fix logical vs bitwise operation net: sxgbe: sxgbe_mdio_register() frees the bus Call efx_set_channels() before efx->type->dimension_resources() xen-netback: disable rogue vif in kthread context net/mlx4: Set proper build dependancy with vxlan be2net: fix build dependency on VxLAN mac802154: make csma/cca parameters per-wpan mac802154: allow only one WPAN to be up at any given time net: filter: minor: fix kdoc in __sk_run_filter netlink: don't compare the nul-termination in nla_strcmp can: c_can: Avoid led toggling for every packet. can: c_can: Simplify TX interrupt cleanup can: c_can: Store dlc private can: c_can: Reduce register access can: c_can: Make the code readable ...
Diffstat (limited to 'tools')
-rw-r--r--tools/net/bpf_dbg.c119
1 files changed, 55 insertions, 64 deletions
diff --git a/tools/net/bpf_dbg.c b/tools/net/bpf_dbg.c
index 65dc757f7f7b..bb31813e43dd 100644
--- a/tools/net/bpf_dbg.c
+++ b/tools/net/bpf_dbg.c
@@ -87,9 +87,6 @@
__attribute__ ((format (printf, (pos_fmtstr), (pos_fmtargs))))
#endif
-#define CMD(_name, _func) { .name = _name, .func = _func, }
-#define OP(_op, _name) [_op] = _name
-
enum {
CMD_OK,
CMD_ERR,
@@ -145,32 +142,32 @@ static size_t pcap_map_size = 0;
static char *pcap_ptr_va_start, *pcap_ptr_va_curr;
static const char * const op_table[] = {
- OP(BPF_ST, "st"),
- OP(BPF_STX, "stx"),
- OP(BPF_LD_B, "ldb"),
- OP(BPF_LD_H, "ldh"),
- OP(BPF_LD_W, "ld"),
- OP(BPF_LDX, "ldx"),
- OP(BPF_LDX_B, "ldxb"),
- OP(BPF_JMP_JA, "ja"),
- OP(BPF_JMP_JEQ, "jeq"),
- OP(BPF_JMP_JGT, "jgt"),
- OP(BPF_JMP_JGE, "jge"),
- OP(BPF_JMP_JSET, "jset"),
- OP(BPF_ALU_ADD, "add"),
- OP(BPF_ALU_SUB, "sub"),
- OP(BPF_ALU_MUL, "mul"),
- OP(BPF_ALU_DIV, "div"),
- OP(BPF_ALU_MOD, "mod"),
- OP(BPF_ALU_NEG, "neg"),
- OP(BPF_ALU_AND, "and"),
- OP(BPF_ALU_OR, "or"),
- OP(BPF_ALU_XOR, "xor"),
- OP(BPF_ALU_LSH, "lsh"),
- OP(BPF_ALU_RSH, "rsh"),
- OP(BPF_MISC_TAX, "tax"),
- OP(BPF_MISC_TXA, "txa"),
- OP(BPF_RET, "ret"),
+ [BPF_ST] = "st",
+ [BPF_STX] = "stx",
+ [BPF_LD_B] = "ldb",
+ [BPF_LD_H] = "ldh",
+ [BPF_LD_W] = "ld",
+ [BPF_LDX] = "ldx",
+ [BPF_LDX_B] = "ldxb",
+ [BPF_JMP_JA] = "ja",
+ [BPF_JMP_JEQ] = "jeq",
+ [BPF_JMP_JGT] = "jgt",
+ [BPF_JMP_JGE] = "jge",
+ [BPF_JMP_JSET] = "jset",
+ [BPF_ALU_ADD] = "add",
+ [BPF_ALU_SUB] = "sub",
+ [BPF_ALU_MUL] = "mul",
+ [BPF_ALU_DIV] = "div",
+ [BPF_ALU_MOD] = "mod",
+ [BPF_ALU_NEG] = "neg",
+ [BPF_ALU_AND] = "and",
+ [BPF_ALU_OR] = "or",
+ [BPF_ALU_XOR] = "xor",
+ [BPF_ALU_LSH] = "lsh",
+ [BPF_ALU_RSH] = "rsh",
+ [BPF_MISC_TAX] = "tax",
+ [BPF_MISC_TXA] = "txa",
+ [BPF_RET] = "ret",
};
static __check_format_printf(1, 2) int rl_printf(const char *fmt, ...)
@@ -1127,7 +1124,6 @@ static int cmd_step(char *num)
static int cmd_select(char *num)
{
unsigned int which, i;
- struct pcap_pkthdr *hdr;
bool have_next = true;
if (!pcap_loaded() || strlen(num) == 0)
@@ -1144,7 +1140,7 @@ static int cmd_select(char *num)
for (i = 0; i < which && (have_next = pcap_next_pkt()); i++)
/* noop */;
- if (!have_next || (hdr = pcap_curr_pkt()) == NULL) {
+ if (!have_next || pcap_curr_pkt() == NULL) {
rl_printf("no packet #%u available!\n", which);
pcap_reset_pkt();
return CMD_ERR;
@@ -1177,9 +1173,8 @@ static int cmd_breakpoint(char *subcmd)
static int cmd_run(char *num)
{
static uint32_t pass = 0, fail = 0;
- struct pcap_pkthdr *hdr;
bool has_limit = true;
- int ret, pkts = 0, i = 0;
+ int pkts = 0, i = 0;
if (!bpf_prog_loaded() || !pcap_loaded())
return CMD_ERR;
@@ -1189,10 +1184,10 @@ static int cmd_run(char *num)
has_limit = false;
do {
- hdr = pcap_curr_pkt();
- ret = bpf_run_all(bpf_image, bpf_prog_len,
- (uint8_t *) hdr + sizeof(*hdr),
- hdr->caplen, hdr->len);
+ struct pcap_pkthdr *hdr = pcap_curr_pkt();
+ int ret = bpf_run_all(bpf_image, bpf_prog_len,
+ (uint8_t *) hdr + sizeof(*hdr),
+ hdr->caplen, hdr->len);
if (ret > 0)
pass++;
else if (ret == 0)
@@ -1245,14 +1240,14 @@ static int cmd_quit(char *dontcare)
}
static const struct shell_cmd cmds[] = {
- CMD("load", cmd_load),
- CMD("select", cmd_select),
- CMD("step", cmd_step),
- CMD("run", cmd_run),
- CMD("breakpoint", cmd_breakpoint),
- CMD("disassemble", cmd_disassemble),
- CMD("dump", cmd_dump),
- CMD("quit", cmd_quit),
+ { .name = "load", .func = cmd_load },
+ { .name = "select", .func = cmd_select },
+ { .name = "step", .func = cmd_step },
+ { .name = "run", .func = cmd_run },
+ { .name = "breakpoint", .func = cmd_breakpoint },
+ { .name = "disassemble", .func = cmd_disassemble },
+ { .name = "dump", .func = cmd_dump },
+ { .name = "quit", .func = cmd_quit },
};
static int execf(char *arg)
@@ -1280,7 +1275,6 @@ out:
static char *shell_comp_gen(const char *buf, int state)
{
static int list_index, len;
- const char *name;
if (!state) {
list_index = 0;
@@ -1288,9 +1282,9 @@ static char *shell_comp_gen(const char *buf, int state)
}
for (; list_index < array_size(cmds); ) {
- name = cmds[list_index].name;
- list_index++;
+ const char *name = cmds[list_index].name;
+ list_index++;
if (strncmp(name, buf, len) == 0)
return strdup(name);
}
@@ -1322,16 +1316,9 @@ static void init_shell(FILE *fin, FILE *fout)
{
char file[128];
- memset(file, 0, sizeof(file));
- snprintf(file, sizeof(file) - 1,
- "%s/.bpf_dbg_history", getenv("HOME"));
-
+ snprintf(file, sizeof(file), "%s/.bpf_dbg_history", getenv("HOME"));
read_history(file);
- memset(file, 0, sizeof(file));
- snprintf(file, sizeof(file) - 1,
- "%s/.bpf_dbg_init", getenv("HOME"));
-
rl_instream = fin;
rl_outstream = fout;
@@ -1348,37 +1335,41 @@ static void init_shell(FILE *fin, FILE *fout)
rl_bind_key_in_map('\t', rl_complete, emacs_meta_keymap);
rl_bind_key_in_map('\033', rl_complete, emacs_meta_keymap);
+ snprintf(file, sizeof(file), "%s/.bpf_dbg_init", getenv("HOME"));
rl_read_init_file(file);
+
rl_prep_terminal(0);
rl_set_signals();
signal(SIGINT, intr_shell);
}
-static void exit_shell(void)
+static void exit_shell(FILE *fin, FILE *fout)
{
char file[128];
- memset(file, 0, sizeof(file));
- snprintf(file, sizeof(file) - 1,
- "%s/.bpf_dbg_history", getenv("HOME"));
-
+ snprintf(file, sizeof(file), "%s/.bpf_dbg_history", getenv("HOME"));
write_history(file);
+
clear_history();
rl_deprep_terminal();
try_close_pcap();
+
+ if (fin != stdin)
+ fclose(fin);
+ if (fout != stdout)
+ fclose(fout);
}
static int run_shell_loop(FILE *fin, FILE *fout)
{
char *buf;
- int ret;
init_shell(fin, fout);
while ((buf = readline("> ")) != NULL) {
- ret = execf(buf);
+ int ret = execf(buf);
if (ret == CMD_EX)
break;
if (ret == CMD_OK && strlen(buf) > 0)
@@ -1387,7 +1378,7 @@ static int run_shell_loop(FILE *fin, FILE *fout)
free(buf);
}
- exit_shell();
+ exit_shell(fin, fout);
return 0;
}