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Diffstat (limited to 'src/gen_bpf.c')
-rw-r--r--src/gen_bpf.c61
1 files changed, 33 insertions, 28 deletions
diff --git a/src/gen_bpf.c b/src/gen_bpf.c
index e11e892..8c96f87 100644
--- a/src/gen_bpf.c
+++ b/src/gen_bpf.c
@@ -701,8 +701,8 @@ static struct bpf_blk *_gen_bpf_node(struct bpf_state *state,
/* reload the accumulator */
a_state->offset = acc_offset;
a_state->mask = ARG_MASK_MAX;
- _BPF_INSTR(instr, BPF_LD+BPF_ABS,
- _BPF_JMP_NO, _BPF_JMP_NO, _BPF_K(acc_offset));
+ _BPF_INSTR(instr, BPF_LD + BPF_ABS,
+ _BPF_JMP_NO, _BPF_JMP_NO, _BPF_K(acc_offset));
blk = _blk_append(state, blk, &instr);
if (blk == NULL)
goto node_failure;
@@ -710,8 +710,8 @@ static struct bpf_blk *_gen_bpf_node(struct bpf_state *state,
if (acc_mask != a_state->mask) {
/* apply the bitmask */
a_state->mask = acc_mask;
- _BPF_INSTR(instr, BPF_ALU+BPF_AND,
- _BPF_JMP_NO, _BPF_JMP_NO, _BPF_K(acc_mask));
+ _BPF_INSTR(instr, BPF_ALU + BPF_AND,
+ _BPF_JMP_NO, _BPF_JMP_NO, _BPF_K(acc_mask));
blk = _blk_append(state, blk, &instr);
if (blk == NULL)
goto node_failure;
@@ -721,15 +721,15 @@ static struct bpf_blk *_gen_bpf_node(struct bpf_state *state,
switch (node->op) {
case SCMP_CMP_MASKED_EQ:
case SCMP_CMP_EQ:
- _BPF_INSTR(instr, BPF_JMP+BPF_JEQ,
+ _BPF_INSTR(instr, BPF_JMP + BPF_JEQ,
_BPF_JMP_NO, _BPF_JMP_NO, _BPF_K(node->datum));
- break;
+ break;
case SCMP_CMP_GT:
- _BPF_INSTR(instr, BPF_JMP+BPF_JGT,
+ _BPF_INSTR(instr, BPF_JMP + BPF_JGT,
_BPF_JMP_NO, _BPF_JMP_NO, _BPF_K(node->datum));
break;
case SCMP_CMP_GE:
- _BPF_INSTR(instr, BPF_JMP+BPF_JGE,
+ _BPF_INSTR(instr, BPF_JMP + BPF_JGE,
_BPF_JMP_NO, _BPF_JMP_NO, _BPF_K(node->datum));
break;
case SCMP_CMP_NE:
@@ -933,7 +933,8 @@ static struct bpf_blk *_gen_bpf_chain(struct bpf_state *state,
if (b_next == NULL)
i_iter->jt = *nxt_jump;
else
- i_iter->jt=_BPF_JMP_BLK(b_next);
+ i_iter->jt =
+ _BPF_JMP_BLK(b_next);
}
if (i_iter->jf.type == TGT_NXT) {
if (i_iter->jf.tgt.nxt != 0)
@@ -941,7 +942,8 @@ static struct bpf_blk *_gen_bpf_chain(struct bpf_state *state,
if (b_next == NULL)
i_iter->jf = *nxt_jump;
else
- i_iter->jf=_BPF_JMP_BLK(b_next);
+ i_iter->jf =
+ _BPF_JMP_BLK(b_next);
}
}
b_iter = b_next;
@@ -1019,8 +1021,8 @@ static struct bpf_blk *_gen_bpf_syscall(struct bpf_state *state,
/* setup the accumulator state */
if (acc_reset) {
- _BPF_INSTR(instr, BPF_LD+BPF_ABS, _BPF_JMP_NO, _BPF_JMP_NO,
- _BPF_SYSCALL);
+ _BPF_INSTR(instr, BPF_LD + BPF_ABS, _BPF_JMP_NO, _BPF_JMP_NO,
+ _BPF_SYSCALL);
blk_s = _blk_append(state, NULL, &instr);
if (blk_s == NULL)
return NULL;
@@ -1038,7 +1040,7 @@ static struct bpf_blk *_gen_bpf_syscall(struct bpf_state *state,
return NULL;
/* syscall check */
- _BPF_INSTR(instr, BPF_JMP+BPF_JEQ,
+ _BPF_INSTR(instr, BPF_JMP + BPF_JEQ,
_BPF_JMP_HSH(blk_c->hash), _BPF_JMP_HSH(nxt_hash),
_BPF_K(sys->num));
blk_s = _blk_append(state, blk_s, &instr);
@@ -1117,7 +1119,7 @@ static struct bpf_blk *_gen_bpf_arch(struct bpf_state *state,
if (s_head != NULL) {
s_iter_b = s_head;
while ((s_iter_b->pri_nxt != NULL) &&
- (s_iter->priority <= s_iter_b->priority))
+ (s_iter->priority <= s_iter_b->priority))
s_iter_b = s_iter_b->pri_nxt;
if (s_iter->priority > s_iter_b->priority) {
@@ -1127,8 +1129,10 @@ static struct bpf_blk *_gen_bpf_arch(struct bpf_state *state,
s_head->pri_prv = s_iter;
s_head = s_iter;
} else {
- s_iter->pri_prv->pri_nxt=s_iter;
- s_iter->pri_nxt->pri_prv=s_iter;
+ s_iter->pri_prv->pri_nxt =
+ s_iter;
+ s_iter->pri_nxt->pri_prv =
+ s_iter;
}
} else {
s_iter->pri_prv = s_tail;
@@ -1160,7 +1164,8 @@ static struct bpf_blk *_gen_bpf_arch(struct bpf_state *state,
b_new = _gen_bpf_syscall(state, s_iter,
(b_head == NULL ?
state->def_hsh : b_head->hash),
- (s_iter == s_head ? acc_reset:false));
+ (s_iter == s_head ?
+ acc_reset : false));
if (b_new == NULL)
goto arch_failure;
@@ -1183,25 +1188,25 @@ static struct bpf_blk *_gen_bpf_arch(struct bpf_state *state,
/* additional ABI filtering */
if ((db->arch->token == SCMP_ARCH_X86_64 ||
db->arch->token == SCMP_ARCH_X32) && (db_secondary == NULL)) {
- _BPF_INSTR(instr, BPF_LD+BPF_ABS, _BPF_JMP_NO, _BPF_JMP_NO,
+ _BPF_INSTR(instr, BPF_LD + BPF_ABS, _BPF_JMP_NO, _BPF_JMP_NO,
_BPF_SYSCALL);
b_new = _blk_append(state, NULL, &instr);
if (b_new == NULL)
goto arch_failure;
if (db->arch->token == SCMP_ARCH_X86_64) {
/* filter out x32 */
- _BPF_INSTR(instr, BPF_JMP+BPF_JGE,
- _BPF_JMP_NXT(blk_cnt++), _BPF_JMP_NO,
- _BPF_K(X32_SYSCALL_BIT));
+ _BPF_INSTR(instr, BPF_JMP + BPF_JGE,
+ _BPF_JMP_NXT(blk_cnt++), _BPF_JMP_NO,
+ _BPF_K(X32_SYSCALL_BIT));
if (b_head != NULL)
instr.jf = _BPF_JMP_HSH(b_head->hash);
else
instr.jf = _BPF_JMP_HSH(state->def_hsh);
} else if (db->arch->token == SCMP_ARCH_X32) {
/* filter out x86_64 */
- _BPF_INSTR(instr, BPF_JMP+BPF_JGE,
- _BPF_JMP_NO, _BPF_JMP_NXT(blk_cnt++),
- _BPF_K(X32_SYSCALL_BIT));
+ _BPF_INSTR(instr, BPF_JMP + BPF_JGE,
+ _BPF_JMP_NO, _BPF_JMP_NXT(blk_cnt++),
+ _BPF_K(X32_SYSCALL_BIT));
if (b_head != NULL)
instr.jt = _BPF_JMP_HSH(b_head->hash);
else
@@ -1222,7 +1227,7 @@ static struct bpf_blk *_gen_bpf_arch(struct bpf_state *state,
}
/* do the ABI/architecture check */
- _BPF_INSTR(instr, BPF_JMP+BPF_JEQ,
+ _BPF_INSTR(instr, BPF_JMP + BPF_JEQ,
_BPF_JMP_NO, _BPF_JMP_NXT(blk_cnt++),
_BPF_K(db->arch->token_bpf));
if (b_head != NULL)
@@ -1411,7 +1416,7 @@ static int _gen_bpf_build_jmp(struct bpf_state *state,
return -EFAULT;
/* we need to insert a long jump - create one */
- _BPF_INSTR(instr, BPF_JMP+BPF_JA,
+ _BPF_INSTR(instr, BPF_JMP + BPF_JA,
_BPF_JMP_NO, _BPF_JMP_NO, _BPF_JMP_HSH(tgt_hash));
b_new = _blk_append(state, NULL, &instr);
if (b_new == NULL)
@@ -1478,7 +1483,7 @@ static int _gen_bpf_build_bpf(struct bpf_state *state,
state->def_hsh = b_default->hash;
/* load the architecture token/number */
- _BPF_INSTR(instr, BPF_LD+BPF_ABS, _BPF_JMP_NO, _BPF_JMP_NO,
+ _BPF_INSTR(instr, BPF_LD + BPF_ABS, _BPF_JMP_NO, _BPF_JMP_NO,
_BPF_K(offsetof(struct seccomp_data, arch)));
b_head = _blk_append(state, NULL, &instr);
if (b_head == NULL)
@@ -1575,7 +1580,7 @@ static int _gen_bpf_build_bpf(struct bpf_state *state,
b_jmp->next = b_iter->next;
b_iter->next = b_jmp;
if (b_jmp->next)
- b_jmp->next->prev=b_jmp;
+ b_jmp->next->prev = b_jmp;
}
}
if (b_jmp != NULL) {
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