函数逻辑报告 |
Source Code:kernel\bpf\verifier.c |
Create Date:2022-07-27 14:11:55 |
Last Modify:2022-05-19 20:02:10 | Copyright©Brick |
首页 | 函数Tree |
注解内核,赢得工具 | 下载SCCT | English |
函数名称:check_ctx_reg
函数原型:static int check_ctx_reg(struct bpf_verifier_env *env, const struct bpf_reg_state *reg, int regno)
返回类型:int
参数:
类型 | 参数 | 名称 |
---|---|---|
struct bpf_verifier_env * | env | |
const struct bpf_reg_state * | reg | |
int | regno |
2749 | verbose(env, "dereference of modified ctx ptr R%d off=%d disallowed\n", regno, Fixed part of pointer offset, pointer types only ) |
2751 | 返回:负EACCES |
2754 | 如果非Returns true if @a is a known constant 或value则 |
2759 | 返回:负EACCES |
2762 | 返回:0 |
名称 | 描述 |
---|---|
check_mem_access | heck whether memory at (regno + off) is accessible for t = (read | write)* if t==write, value_regno is a register which value is stored into memory* if t==read, value_regno is a register which will receive the value from memory* if t==write && |
check_func_arg | |
check_ld_abs | verify safety of LD_ABS|LD_IND instructions:* - they can only appear in the programs where ctx == skb* - since they are wrappers of function calls, they scratch R1-R5 registers,* preserve R6-R9, and store return value into R0* Implicit input:* ctx == skb |
源代码转换工具 开放的插件接口 | X |
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支持:c/c++/esqlc/java Oracle/Informix/Mysql 插件可实现:逻辑报告 代码生成和批量转换代码 |